New to the scooters here. My son has a stock 2013 quattronove 50x, we are wanting to keep it stockish but would like to make it quicker than 50km/hr. Would this clutching do this or not?
First explanation I’ve seen that completely and clearly describes what a variator is doing and how roller weight affects the rpm at which the pulley’s effective diameter changes as well as the rate at which that change takes place all else being equal. Excellent video! Subbed and liked.
For a year now, I've known how to change a belt and assemble a varitator. But I was in the dark with how it worked. I watched so many videos explaining it but your style of explaining how it works was super easy to understand. Thank you for making this video, keep going!
This is how an instructional video is done - clear, to the point and you know what you’re talking about. The Americans just waffle on and on and on for ages and say very little. This is a breath of fresh air. I just subscribed . Thank you for doing this so well
@@elizabethmcheffey8699 Americas economy will collapse in your lifetime under the weight of 29 Trillion Dollars (and rising), you cant even afford the interest repayments on 29 trillion dollars, the ignorance of America is impressive. You could try to pray the problem away hehehe. The rest of the world knows this and is laughing at America. outside America, you are the butt of all jokes. Land of the fleeced home of the slave. good luck with that
Thank you for doing this video! I’m just learning as I go and everytime I ask another rider.. they always say it’s easy but never really explain it like the way you just did! Thank you again
Hey mate, thanks for the video. I watched a few and got more confused than I was when I started. Your video was very clear, mate. Thanks a lot I think I know what to do now actually. Cheers.
Thank you I really appreciate it love your videos ! Great professional content right to the point no messing around and goofing around and all that BS ! I gave up on scooter swap shop videos, too much f****** around and not enough valuable content !
thanks bought a DLH variator for my nouvo elegance 135..couldnt figure out why it came with 3 10g 3 11g 3 12g plus three red springs.being 200lbs the 10 and 11s work great..thanks
I have a 22 Honda Air Blade 150 . It came with 16 gram flyballs (rollers) I put in 20 gram , then I removed the air baffle and tube in the filter casing , took it to shop remapped the ECU and oh boy what a differance .Thiking about putting in a little heavier variator spring . It's not for racing but just cruieing and towing a small cargo trailer .
@@scooterstreetau AS for speed I don't know have not tried that yet . Before is would be hard to spin tire in dirt , now it will put the rubber to the road ,the pick is really goo . Sure looks like I will be going to 20 gram sliders .
I have honda ruckus with NYC variator/ drive face and right now 6g Dr.pulley slider. I can't get the belt to get top of the variator. I've also tried 5.5g and 5g. What would you recommend to get the belt to the top of the variator?
Was the belt going to the top of the variator when the standard face was fitted? Pen mark the Variator face and rev it up on the main stand with the scoter securley fixed and in fron to f a wall so no movement. Does the pen mark get rubbed off all the way to the top? The rollers are most likely heavy enough to take the belt to 100% so it could be the belt length, the belt width or the rear pulley. When the rear pulley is fully opened ( top gear) is the belt at the total centre? Many questions to ask and answer to isolate what the issue can be.. Start now✌️
Thanks I've always staggered the weights some one told me about the total amount off grams is key buy I forgot exactly the explanation for that. Thanks 82 mini stroker Hawaii 🤙🤙 aloha
I’ve got a 2021 znen 50cc. I could be running flat at 35-40mph and hit a hill and drop instantly to 10mph. I weigh under 200lbs. What would be the best set up for this transmission-qmb139 engine?? Any suggestions would be appreciated. Thanks guys.
The hill is effectively adding more load to the engine so the transmission should automatically lower the gearing. You can better achieve this with lighter rollers in the variator and a heavier torque spring in the clutch but all must be balanced.. Take care not to go too far with these adjustments because ultimately the engine is not producing enough power, consider a big bore kit.
Yes you can, I may do this for trial only and then move to having each roller of the same weight. Total of this combo is 39gram so divide by 6 to get each roller being 6.5gram. When 3 rollers are heavier than the other 3, the heavier will do all the pushing and wear very fast.
THanks for the support and comment, MZ. Your Address doing 120kph is very good for the UK110. I would leave it alone, already great✌ Most likely the belt is moving to the top gear and the front variator..
HI MATE CAN YOU TELL ME WHAT SIZE ROLLER WEIGHTS I NEED FOR 49CC DIRECT BIKES MOPED TO GET UP HILLS AND BANKS AND PICK UP MORE SPEED THANK YOU PLEASE KEEP POSTING YOUR VIDEOS THANK YOU
I am unfamiliar with this Brand and Model, but I would try a going for 1 gram lighter than the original rollers, tighter clutch spring set and Also look for an unrestricted CDI. Usually the 49cc 4T will accept the 75cc Kit and then your on your way👍
@@scooterstreetau THANK YOU CAN YOU SHOW ME IN ONE OF YOUR VIDEOS AND IF YOU DONT MIND ASKING WHATS BEST LED BULB I CAN GET SO I CAN SEE ON DARK ROADS BETTER THANKS ALSO I FIND OUT WHAT ROLLERS ARE IN NOW AND I LET U KNW IF ITS OK..
@@johnwhite3346 Watch these videos for the tips on changing rollers. We are not sure about the LED headlights... ruclips.net/video/2XRQ-5nqKlg/видео.html&ab_channel=ScooterStreet ruclips.net/video/M4TM120Cc7M/видео.html&ab_channel=ScooterStreet ruclips.net/video/ae44tbCJIdA/видео.html&ab_channel=ScooterStreet
Just tuned in and subscribed thanks for the very good, informative video. I've got a Sym Jolie scooter where would you recommend I buy my bots from from Australia I want to support the local suppliers so any advice would be greatly appreciated. Thanks again for the vids
lighter rollers allows reduced load so energy to rotate is less and so rotation is quicker. Too light and the gearing will progress to slowly causing an over rev. It takes more energy to rotate the heavier rollers so the accelration is reduced. Top speed is created by optimising the roller weights.
You showed that the belt wasn't going all the way to the edge of the pulley,saying that the extra travel would have been worth a few extra km/h. But you didn't tell us what to do to get the belt to travel the full diameter of the pulley. Could you fill that bit in,thanks.
You have several options. Trial with longer belts without loosing the low gear. Use shims to correct the front pulley spacing without changing the lock nut position on the thread.
I really appreciate your explanation on the CVT. Can I please ask some advice? Sorry in advance for the long message. What if I have a Chinese GY6 50cc engine with 80cc bbk and aftermarket exhaust with Keihin carburetor and higher gear ratio to get better top end. I haven't done a thing with the CVT except for variator which wasn't much. I think I may even be running my stock rollers again. I know that was stupid not to do anything until now but should I use the 1500 or 2000 spring and what size sliders or rollers should I be running? Also does a performance clutch with larger pads make any performance difference compared to a new stock clutch or should I just concentrate on the springs and weights? I am experiencing a big from like 15-30 mph and it seems like I should be getting a better top end speed. I'm currently getting about 42 flat and 50-52 downhill lol. Can you please offer me some advice? I would truly appreciate your help brother!
I would try some lighter rollers and replace any worn parts on the engine including the transmission. Look to change the clutch springs to 2-3000rpm or even higher if the engine is revving. You will need to check the variator top speed by pen marking the face and riding. This will guide you as to which rollers, this is trial and test, try lighter rollers and then try heavier.. The performance clutch is good but buy quality and try for an adjustable clutch like Polini G3. Check the main jet on the carby make sure there is enough fuel and the engine not running lean..
@@scooterstreetau thanks so much for replying! I asked several and no one would answer except for you. So I'll try the 2000 rpm spring and some 6 gram Mr. Pulley sliders? You think this should be sufficient and then try the marker deal on the variator? Do you know if they make the polini G3 clutch for a 50cc qmb139 Chinese motor?
@@mikecuev820 You are welcome, thankyou for supporting our Channel🙋♂️. Yes, try the tighter springs but the engine must be revving to engage with better acceleration. With the rollers/Sliders you must trial different weights to move to a better performing variation. So try 6G and then 6.5G and so on until you have the best performance.. Yes Polini do make a suitable clutch..
what is the excellent combination of weight of of flyball if you want more torque because we leave on a mountanious area. i have only 110cc of scooter. thank you
Hello, I have a problem, I have a Peugeot Speedfight 1 100cc that recently seized up/heat seized. It was not tuned. I then changed the cylinder, piston etc. It now starts up right away, but after a while it dies all of a sudden (as if you had turned off the key) and then I can start it right up again, this usually happens when I go over 60 km/h or uphill. When I changed the cylinder etc, I also cleaned everything thoroughly, such as the carburettor, intake, new air filter, new fuel filter (there was no fuel filter before) new spark plug. I also removed the oil pump and put a metalplate with a gasket over the hole instead, I now mix the oil directly into the gasoline. Some other info that might be important. - When I drive over 60 km/h, it starts to make a noise from the variator (CVT), it´s sounds quite a lot. - When it died, I tried to start it again while it was rolling and then it started right away, but it made a noise from the variator, like something "let go" that had been seized up, like a rubber sound, maybe from the belt. - The variator belt touches the variator cover on the inside and has grinded a cut in the metal. - In the variator, where the weights are, the belt does not go down to the bottom of the wheel. - The clutch bell had turned blue from the heat. - The place where the connecting rod attaches to the crankshaft had turned blue from heat. - There was no fuel filter on it before. But i now saw there is an internal fuel filter in the gastank, can it affect the vacuum if you now have 2 fuel filters. Please help me. Regards Andree.
@@scooterstreetau No i did not, i tested the oilpump and it worked, but i am not sure about the flow. Anyway, i removed it and put a plate over the hole, and now i use premix. What could have caused the seizure then, all i can think of is lack of oil.
@@NorthSurvival At times as a bike ages the air and fuel flow changes and you see unbalanced mixtures, there are many variables here, poor air filtering, weather changes, rubber perishing, blockages etc. As a precaution I check all of the systems and their associated parts and also richen the fuel during testing..
@@scooterstreetau I took it for a testdrive today and after a while it stopped, so i removed the variator cover to check how it looked and the axle where the weights are that goes into the engine was stuck, so i turned it a bit and it let go, and after it was a bit hard to start again. What could this be? I checked the fuel line and the vacuum valve that goes into the gastank and they worked, if it was some bad bearings in the engine would that be enough to stop the engine while running? If it would be some bad bearings wouldn´t that just like vibrate a bit more, and not stop the engine all toghether. Could something in the engine have taken damage when it heatsized? If so what is the most likely to have taken damage.
@@NorthSurvival From your description it does sound as though something has seized internally. Check the piston and and all parts connected to the crankshaft..
Using a longer belt will help get you to a higher gear (top speed). You will be limited by the rear pulley, so use a bet that maximises the diameter of the smallest pulley. Do keep the same width on the belt, do not go wider..
Great video man, can you give me some advice on tuning a 4 stroke . Yamaha xmax 300 . Do you think a variator and rollers would give better accelration ? Do you have any suggestions on rolller weights .
Thank you for comment👍. Yes certainly start at 10% lighter on the roller weight, go for a performance variator which has specific rollers for Xmax and look to include an adjustable clutch system as they work in tandem. This will enhance the transmission performance overall. Def ask Yamaha about the ECU mapping, there may be a different mapping setting for higher performance.
Very good explanation on how a varaitor works with different weight rollers. My question is, during your explanation I noticed that you are only using the round type of rollers. Can you please explain what the difference is between the Dr. Pulley brand roller weights. That have more of a cam lobe instead of just being round round. Like the ones you are using in this video?
Rollers and Dr pulley actually slide they dont roll. Dr pulley has a fixed sliding surface and at the same as the rollers, Dr Pulley have a very good method of action where the rollers can be used in different surfaces of the diameter. It all depends on the material the rollers/sliders are made of for longevity.
I put on a 70kit and pipe and changed the carb (12,5 original) to 82 jet, i have 4,6g and it goes great on idle but if you go for full throttle it revs up to 4k and the wheel doesnt even turn around, please help
4.6 is probably too light. Go back to standard rollers or only 1 gram lighter. Now get the carby jet correct first and then come back to the transmission.
Hi at the moment I've just got a stock Typhoon which is deristricted. My daily travel has a lot of hills involved and was woundering if getting lighter rollers could help with that?
Hello, I just upgrade my artistic spec jog from 50cc to a 70cc kit. Wich set weight of rollers do you recommend me?. I have on the stock exhaust, I noticed to scooter is a little sluggish to get up and go. Thank you
I am guessing the Navi follows the PCX transmission, The PCX 2021 variator from Malossi is 5118776. If you check the spare parts and confirm against the original sizes and dimensions of the Navi you may find they are the same.. Do the research first😁👌
Thanks you so much🦘👍. You can run 3 rollers for a short trial only, Not to do long term, double the wear and short lived. Recommend to find the correct total weight, then divide by 6 and then use 6 rollers for this single weight. Trial 6 rollers of the weight 5.5gram, so the total weight is 33 grams. If you do 3 rollers of this weight (5.5g) the engine will rev but the acceleration will drop away after the first 2 or 3 seconds as the weight is not enough to progress the belt through the variator..
You have such great content on you chanel, I shreaded my CVT belt on my gy6 50cc 4 stroke, and replaced it, the belt had no size on it so I think it small case so I went with 669x18x30,,,put everything back together and it wont start,,,replaced battey, coil, plug ,CDI, nothing,,,,could a wrong size belt prevent it from starting? Could I take the belt off and try to start without it on, so frustrating at this point, any advice would be awsome,, TY again!
Thanks for great comments. Sounds like something is bound up. You need to reset the variator, when the belt blows apart the variator usually will get stuck in high gear. Have a good look through the transmission as well, pieces of blown up belt often work their way into crucial moving parts like the pinion gear, etc.
I have no firm answer. You must trial different weights to find this out for yourself. The standard rollers will give the highest top speed but may not allow the best acceleration. A slightly lighter set of rollers will also give the highest top speed and the acceleration will start to increase.. If you reduce the weight by small increments you will eventually find a weight that will no longer get you to the highest top speed (they will be too light to drive the variator to highest belt position). So you need to find the lighter set of rollers that increase the acceleration and also still provide the highest top speed. This will be the optimal set. At a guess try 12-15% less than standard.
So I have a stage6 70cc kit and an exhaust, crank, and intake system and I also have a polini clutch, variator and clutch bell and I was wondering how do I find the perfect rollers, clutch springs and contra spring for my scooter because I am very lost atm
The easiest way to dial in the rollers is to make 1 gram changes from the original, so ride with originals and then change to heavier rollers by 1 gram. Now compare the difference bewteen the 2 different roller sets. Now try 1 gram lighter and between these changes which set has you at the best perfomance.? It is vital to fit an adjustable clutch or tighter clutch springs.
Upgrade the engine capacity. If this is not an option allow the rpm to build before the clutch engages. Do this with lighter rollers, lowest gearing on the belt to variator position (use of shims) and later engagement of the clutch shoe, Use an adjustable clutch. So lighter rollers, adjustable clutch.
Does it matter how the rollers go in like it what direction? I noticed one side is showing metal, the other plastic, should it be facing a certain way? TY for your videos
The metal end that you mention is the end in which the metal weight is inserted into the plastic roller housing. The force of the spinning variator can push the metal insert out of the plastic housing if laid into the variator in an anticlockwise direction. So the plastic cover end of the roller should be facing clockwise in the variators fitted position.
Hi ! Impressive video. I have a question . I have a sym hd 300 , polini variator 14g rollers and the blue hard contra, also free dna air filter . The manual says that at 8000rpm max h.power. the rpm has increased from before , and 0-100 very fast but then drop , and the max speed comes vary vary latter and the rpm gies to 8100-8200? What mod would you suggest in order to reduce the drop at higher speeds? And do you suggest a aftermarket muffer?
Thank you.. Try varying the roller weight, Go heavier and then slowly reduce weights, so you can see what the change makes on the road. The spring, try the original spring and then again varying the rollers.
@@christos5635 Aftermarket exhaust: Great sound, more noise awareness for drivers. At this cc it gives good mid-range power and can add to the top speed, you need the variator/transmission tuning and you have the variator.
They are developed to increase the effectiveness of the transmission by maintaining optimal RPM. With different weights the variator can be fine tuned. This can increase the acceleration and also top speed. The ramp slot that the rollers are housed have a different angle, some kits have upgraded the size of the guides with smaller tolerances. Often the performance variator is cheaper than the OEM. Saying this, there are cases where the factory Variator will have the same performance as the aftermarket Variator.
Most scooter parts from China labeled high performance are just “cheap replacement” parts. It’s more important that your transmission is properly tuned to keep engine rpm in the power band. The physics is the same no matter how much you paid for your variator.
hello, I really like how knowledgeable you are with the aprilia sr50. my year is 1999 and 2000 carb model. I'm interested in making it rear facing carb but not sure of the modifications I will or might need to do. I had one before but I had stage 6 rear intake with 28mm pkw carburetor. I'm not sure what mod if there was one to make this setup work. can you help me figure out this? I want to duplicate what I had. just not sure of the frame modification. do I need to do this?
Hi great video. I used NCY 12g rollers and managed to get my Honda Navi up to 52mph. But at the top end speed I’m getting a vibration, any thoughts on why? I did notice the 12g rollers have different looking sides on them. Do you know if they all have to go in the same direction? Rollers did not come with any directions and can’t seem to find any information or videos on it. I’m thinking I’ve reached peak performance with the 12g rollers but not sure. Any thoughts or suggestions Thank you
Hi \ thank you for this Great video I have Yamaha majesty 250cc Scooter can I mix 3 of 13 gm light rollers with his heavy original 3 of 18 gm or this is big difference!!? Can you advise me what is the best choice please ?
Your welcome, thank you. If the dimension of the roller is the same and only the weight is different then YES. BUT We use this combination method to find the correct weight for testing only. Once we have found the correct overall weight we prefer to use all rollers of the same weight. example: If you have 3 x 13g = 39 added with 3 x 18g = 54 then the total of all = 93g. Divide the total weight by the number of rollers, in this case 6 and use 15.5gram weight for all of them.👌
@@scooterstreetau Will I'm always use the original 6× 18g but I feel the Scooter heavy to move for the first moments thin will be normal Thin I got to use 6×13g rollers but not a very good results make to me ! high Rpm and high engine sound I think the engine loose some power in this case !!
Hi do you sell or know where to buy as im in sydney i have my first scooter its a scarabeo 200ie 2012 what do you recommend for better take off and do i have to upgrade the jet needle.
I have a Wolf Blaze 2 150cc. What kind of rollers should I get to get faster take off and keep maximum speed? I’m in Florida and average speed is about 45 so I want to get to at least 50mph rather sooner. TIA. Stock scooter except carburetor
Hi, I have taken off many variatiors, Im tryn to get the variator off of my prescott 50i gy6 and the nut will not come off, I tried my usual torque wrench that always works and my buddy came by with large set of socket wrench and he couldnt do it, have you had a situation where you cant get the variator off and what did you do? Id hate to not be able to upgrade this scooter TY again!!!
That sounds pretty frustrating! Not familiar with that particular make but the GY6 engines obviously all share a fair bit of commonality. I would recommend a rattle gun/torque driver with minimum 350-400Nm torque. In most cases you'll need a fair bit more torque to undo a factory nut than to retighten it. They make have used some thread lock in the factory as an anti-tamper, or it may just be corroded or stuck on. If a rattle gun still wont get it off, I'd recommend taking it to a mechanic.
Straight out SUB, Love it😁. What size are your current rollers? Let's say 7.5 gram, try 6 gram and then make small weight adjustments from there. Too light and it will not maintain the pull and over rev so trial and test🎉
hi, i have yamaha jog r with 70cc malossi kit. clutch spring malossi and 17.5 carb and performance exhaust but its broken and my problem is when i start riding the scooter takes too much rpm to move but when it starts moving its fine is it the roller or the broken exhaust? (sorry for bad english)
Hello, i have a aprilia sr 50 2020 E4 with piaggio engine. The standard rollers on it are 7,2 or 7,5. I changed the rollers to 6,1 but it accelerates very slowly, like the engine revs a bit but i can reach max 45 50 km/ h and it takes a little bit more time than it took when i had the standard rollers
The scooter is designed to go slow according to regulations, it needs to be derestricted in order to gain more power and top speed. Changing the rollers is one part of the puzzle but the CDI/ECU will need mods and also the carby and def. the exhaust.
Ahhh Walter what have you done Mate..... Tip: Break off the opposing blade, now remove any rough edges on the broken blades (use sanding paper) to make sure no loose pieces would break away during running. Use the correct tools , don't jam anything in there that may damge the blades, we have all done this at one time😁👌
Hello julleboy90, all the content is still very relevant👍. You use a shim to increase (spread) the distance between the variator and the fixed face fan. This allows the belt to sit at the lowest point on the front pulley. May be used when a different size belt is used, wider and longer perhaps.. we like to have the belt very ear to the outside of the variator to allow the highest gearing.
Hi Scooter street! I recently bought a china 2stroke scooter. It had 4g rollers when i got it, they were worn, with flat spots. I replaced them with 6g rollers, it had poor acceleration and top speed then. Now i put in 5g rollers, it seems to have good performance now, but im afraid it is reving too high at high speed. It has leovince exaust on it and stock 50cc cylinder. Can scooters get damaged from reving too high? I dont know how much rpm is normal, no experience with scooters
No, it cant really rev too high so don't worry about high RPM. 2 stroke engines are high revving engines, a near standard scooter such as yours cant really over rev to the point of damage unless there is a serious mechanical issue. You should try the marking of the variator to see if the belt is reaching the top of the variator. Also a heavier torque spring will counter the heavier rollers. Do some trialling and come out with the best outcome for the transmission..
We suggest that you trial different weights to get the bet performance for your set up. Once you find this best performance weight, then find the total weight of all of the rollers and divided this total by 6. This is the weight that each roller should be. If an 8 roll variator then divide by 8.
Hi guy, i have some question: -what is your recommend clutch shoe material for stop-and-go city riding!? -stock clutch shoe (soft) and carbon-kevlar shoe(hard), which one hit the bell rapidly, and give the best friction force!? -if i choose the more friction shoe, i must choose lighter roller weight to avoid the belt from slip, isn't it!? -for normal riding everyday, we must take off at high/full throttle or just slightly throttle!? Thank you 👍
-Clutch material: Standard clutch is fine, always maintain and clean the shoes and bell housing, upgrade to a higher class when wear is present. -Stock clutch shoe: Street spec or Race spec! Choose what you need for the riding type your doing. -The trans should be balanced, example: if race class go with race class for the entire system. The roller weight determine rpm and also top speed. - Throttle: Depends on the scooter cc. For me on 50cc it is always full throttle and control with the rear brake.
OK I know after market variators are different in its ramping. I bought a malossi variator with 9 gram rollers for my kymco super 8 50cc 2t. I found out stock is 8 gram rollers. I've bought my leo vince exhaust. How would 9 grams be in my scooter
Try the 9 gram Malossi recommend, you may find it limits the initial rev. So move the a 7.5gram set. You need an exhaust for the Super 8 because they are not so super in their speed.
Ok I have Leo Vince exhaust, malossi cut out filter for air box. Could you please tell me what size main jet I need for kymco super 8 2t 50cc. I'm in toowoomba so a little different altitude
I have a 2012 Piaggio Typhoon 50cc 4T. What do you recommend to upgrade the rollers, clutch, etc...in order to get faster of the line and going up hill? I want to modify these items to get more torque and speed. Do you recommend replacing the carburetor kit? How can I deactivate the restrictor?
The small engine 4 stroke is difficult because it simply produces very little power. Try lightening the roller weight by 1 gram for each roller and use an adjustable clutch to fine tune the engagement of the power to the wheel. Check for derectrictions in the trasmission, carby and the exhaust. Fit a Malossi single air filter and raise the main jet 1 point.
@@scooterstreetau I've been watching several of your videos with these upgrades. Question is, Is the Piaggio 50cc 4t any different from the Fly you show or the Vespa? Are they basically the components?
Many things to try: After each change test again. Change the rollers to heavier. Replace worn parts and service variator and clutch. Use a performance 9or longer) belt but not Kevlar.
Great tutorial. I have changed mine to molassi Multivar variator. The rollers are 8 gr. Feel the rpm is high before the bike move. Should I be looking into the clutch springs
@@swimwithcoachraven1532 ok well you are on the right track, RPM higher with a later engagement of the clutch to boost from the start position. Tighter clutch springs will allow the rpm to build, so give the springs a go.
@Scooter Street ok, well, i only have stock, 4.6 and 6.5 gram rollers. And as far as the clutch springs go, I'm using the heavy yellow ones. I thought maybe i should use the lighter ones cause I'm only using the stock 50cc. I have the big bore 80cc kit, but it's still in the box.
hey mate what roller weight would you recommend for a vespa s125 model, mine came with 19gx6 stock rollers totalling 114g, but ive currently got 12gx6 rollers installed with a harder than stock contra, this gave me +10km for top speed and higher acceleration. But i think i still havent reached my variators full potential, what roller weight would you recommend? thankss
That sounds like a fairly large increase for the factory variator. The factory variators are very limited in their tuning potential on their own. I'm very doubtful you will be able to get more out of the factory variator. The Malossi variator makes a big difference
Yes, you need to make sure they all face the same direction, with the smooth (non beveled) side facing clockwise. Double check the direction with your manual. Also, I think my manual called them weights.
Good question! When rollers are manufactured the weighted insert slides into the outer shell. Some rollers have an end in which the weight enters and the shell has a capped end to stop the weight going all the way through the shell, this capped end is called the 'closed end' and should always face away from the direction of rotation when placed in the Variator. Other rollers are glued and do not have a closed end so it will not matter. So always look for the closed end when placing the rollers.
Not essential, changing the spring tension determines at what rpm the clutch will engage. Once you are happy with the roller weight then you can set the clutch engaging.
I bought the variator tool for my piaggio zip but now i dont know how much to tighten the everything? I dont have the tool that shows how much its tightent? Sorry for bad english
Hi Scooter Street, I am Marc with 70 kilograms of bodyweight, I just want to have an advices from you with my Yamaha 50cc scooter set-up upgraded into 47mm Block and Re-chambered Cylinder Head, 70-90 V8 exhaust Pipe, 24mm Carb, Kitaco Racing CDI, 13:34 Secondary Gear, Racing Coil, CT manifold with .35mm Polini Petals, 1000RPM Center Spring and 1000RPM Clutch Spring, Cheap Racing driveface and Pulley set, stock Clutch Lining and Bell, my question is what roller weights should i try to reach the right acceleration and Top/High?
Hi Marc, difficult to have an exact answer. Like all the other variator questions the best answer is to start at the factory rollers and reduce from there. There are instances where the roller weights are increased but usually lighter will be more effective. Trial and testing.
Great video!! I have a question I run a piaggio typhoon with 70cc kit Main carb with 74 jet Malossi exhaust Malossi air filter But the problem is that when I go to a big hill it is like the spring can’t change the transmission (I have factory heavy rollers and factory soft spring from 50cc) is it better to leave the rollers and take a harder spring ? Or is it going to put to much pressure on the belt? If I change the rollers with lighter is it going to lose grip on the belt ? (Sorry for my English ,I hope I am understandable)
Well Thank you😁 we appreciate the views and comments.. A few things, make sure the carby is tuned, the air-mix screw all the way in and then 1 single turn out, set and forget. Is the jet size large enough? Is it running lean? The factory rollers are 7.5. Try a 7.2 or 7 Gram set ensuring the belt is always reaching the outer. Diameter of the variator. I suggest this because it is easier to work out the solution by changing the rollers instead of the Torque spring. By the way make sure the clutch twist rotation is smooth and not stepped.
@@scooterstreetau I have 6 gram rollers I have some holes to the filter box also … And the air screw is half open I will try Malossi green spring in order to help it with the transmission….if it doesn’t change I will buy new even lighter rollers to try again. My plug color is brown
@@flawlessmusic8850 For variator testing , remove 2 rollers to see if it makes a difference, there are many ways to test with the parts that you already have, I am not to sure about holes in the airbox unless you have the carby tuned to suit.. too much air can lean the mix and the power is reduced and it bogs the engine under heavy throttle..
@@scooterstreetau Ok perfect I will try removing rollers Thank you !!! I have seen all your videos on your Chanel 😂 I wish I had Malossi piston set but I have only Malossi head with a cheap 47 kit 😂
In Holland the variator has a backplate that acts asa restrictor ,it limits its expansion. I read that this piece can be removed. Any experience with that? Good video btw. Thanks. :))
Subscribed!
A Sub helps us out and assists in running this Channel, So we greatly appreciate your SUB 🙌 thank you.
New to the scooters here. My son has a stock 2013 quattronove 50x, we are wanting to keep it stockish but would like to make it quicker than 50km/hr. Would this clutching do this or not?
First explanation I’ve seen that completely and clearly describes what a variator is doing and how roller weight affects the rpm at which the pulley’s effective diameter changes as well as the rate at which that change takes place all else being equal. Excellent video! Subbed and liked.
Thanks for the acknowledgement Pete😁
Yup.
For a year now, I've known how to change a belt and assemble a varitator. But I was in the dark with how it worked. I watched so many videos explaining it but your style of explaining how it works was super easy to understand. Thank you for making this video, keep going!
Thank you for your support🛵🤩
This is how an instructional video is done - clear, to the point and you know what you’re talking about. The Americans just waffle on and on and on for ages and say very little. This is a breath of fresh air.
I just subscribed . Thank you for doing this so well
Very much appreciated Sean, thank you. Fan of Sean the Sheep.
American carry your economy blow me
@@elizabethmcheffey8699 Americas economy will collapse in your lifetime under the weight of 29 Trillion Dollars (and rising), you cant even afford the interest repayments on 29 trillion dollars, the ignorance of America is impressive. You could try to pray the problem away hehehe. The rest of the world knows this and is laughing at America. outside America, you are the butt of all jokes. Land of the fleeced home of the slave. good luck with that
🦅🇺🇸🦅
This is a very helpful explanation. Thank you. I just swapped out my variator and clutch and rollers for sliders without really knowing why.
Cheers Jim, always helps with another's experience.👌
Thank you for doing this video! I’m just learning as I go and everytime I ask another rider.. they always say it’s easy but never really explain it like the way you just did! Thank you again
Thank you, that is great. Glad you liked it.
Excellent! Clear and simple 👍 love all your videos and your actual real life knowledge is clear too 👌 thank you 👍
Thanks James. Appreciate the support of our Channel.
Hey mate, thanks for the video. I watched a few and got more confused than I was when I started. Your video was very clear, mate. Thanks a lot I think I know what to do now actually. Cheers.
Glad it helped, the varaitor takes time to sort when tuning.
Very informative, cheers Dave.
Glad it was helpful!
First 2 mins on your channel and I already know we are gonna be friends. Lol
Haha thats what we like, thank you mate😉
Thank you first time i actually understood how these worked.
Great we have helped you👍
Fantastic explanation! Looking forward to ordering some upgrades!
Firstly, Great comment thank you🙌 and thanks for watching. chat soon.
@@scooterstreetau Cheers, have sent a message via your website
Best video on this subject. Forget the others.
GP, Thank you so much for the support🦘🦘.
Amazing video helps so much in upstanding what's going on
Glad to be of service!
Really good video with clear and simple epxplanation. Thanks.
We appreciate the comment, Thank you, all the best👍🦘
I am so happy to see that you did not apply grease to the rollers. Many youtubers incorrectly do that.
Great point! No grease unless there is a Sealing O'ring.
Had to watch an AU video to get a good explanation while sitting in EU. How is that? Thanks for the clear explanation!
What ever the reason, glad to have your viewership👍
Great video mate, really love the explanations. Any tips on tuning the springs?
Well thank you🦘. The torque springshould break late and over compensate the roller weight when the throttle is released.
Thank you I really appreciate it love your videos ! Great professional content right to the point no messing around and goofing around and all that BS ! I gave up on scooter swap shop videos, too much f****** around and not enough valuable content !
You are so welcome. 👌Very happy to hear you like our approach and content🛵👍
Very good!! I fully understand it now. Thank you
Great!👍
I like your details cuzz🤙🏾I'm just go down 1 gram like you did! I got a EFI Eagle 200 that joint fast
Thanks Bro🖖hope it all works out great.
Knowledge is power! 🙏🏻 thank you
Thanks for watching.
You can remove the metal spacer in the roller and drill each spacer out to the exact weight you need.
Yes, All true😊. Many ways to get the same result.
What g would u recommend for a 60kg person
Completely depends on the engine set up.
Thank you for this. Great explanation!
You're very welcome!
Thanks ! Really good explanation.
Thank you, glad it was helpful🙌
thanks bought a DLH variator for my nouvo elegance 135..couldnt figure out why it came with 3 10g 3 11g 3 12g plus three red springs.being 200lbs the 10 and 11s work great..thanks
SO good to hear! All the best Dan.
Good basic information
Thanks a lot
Very nice comment, thank you🙌
Very informative. Just found you and I hope you have more info on scooter tuning.
Welcome aboard! We plan to load more videos, Yes😝
I have a 22 Honda Air Blade 150 . It came with 16 gram flyballs (rollers) I put in 20 gram , then I removed the air baffle and tube in the filter casing , took it to shop remapped the ECU and oh boy what a differance .Thiking about putting in a little heavier variator spring . It's not for racing but just cruieing and towing a small cargo trailer .
Great Job, how much did you gain?
Great Job, how much did you gain?
@@scooterstreetau AS for speed I don't know have not tried that yet . Before is would be hard to spin tire in dirt , now it will put the rubber to the road ,the pick is really goo . Sure looks like I will be going to 20 gram sliders .
@@jamesbraun7709 😆 sounds cool.
I have honda ruckus with NYC variator/ drive face and right now 6g Dr.pulley slider. I can't get the belt to get top of the variator. I've also tried 5.5g and 5g. What would you recommend to get the belt to the top of the variator?
Was the belt going to the top of the variator when the standard face was fitted? Pen mark the Variator face and rev it up on the main stand with the scoter securley fixed and in fron to f a wall so no movement. Does the pen mark get rubbed off all the way to the top? The rollers are most likely heavy enough to take the belt to 100% so it could be the belt length, the belt width or the rear pulley. When the rear pulley is fully opened ( top gear) is the belt at the total centre? Many questions to ask and answer to isolate what the issue can be.. Start now✌️
Thanks I've always staggered the weights some one told me about the total amount off grams is key buy I forgot exactly the explanation for that. Thanks 82 mini stroker Hawaii 🤙🤙 aloha
The Great thing about tuning, you can try anything and go with what works best for you. Thanks for joining the Scooter Street..🛵🦘🏄♂
Great video. Very well explained. Thanks
Thank you👍
Variater part's names Ramp plate, Rollers,
Yes: Ramp plate, rollers, guides, basket or housing, shaft or hub.👍
Thank you for the insight.
My pleasure!
I’ve got a 2021 znen 50cc. I could be running flat at 35-40mph and hit a hill and drop instantly to 10mph. I weigh under 200lbs. What would be the best set up for this transmission-qmb139 engine?? Any suggestions would be appreciated. Thanks guys.
The hill is effectively adding more load to the engine so the transmission should automatically lower the gearing. You can better achieve this with lighter rollers in the variator and a heavier torque spring in the clutch but all must be balanced.. Take care not to go too far with these adjustments because ultimately the engine is not producing enough power, consider a big bore kit.
Do you know why my scooter wouldn’t wanna shift in the 2nd gear, like i take off then it just revs and hits like 35 40 km/h and revs to much
Are your rollers too light, what have you changed recently? Check the variator, belt and rear pulley function.
Well explained!👍
😊👌
VERY CLEAR EXPLANATION. THANKS FOR SHARING.🇺🇲✌️👍
Your welcome, thanks for taking the time to comment🦘
Can i do 8gx3 and 5gx3 rollers or is the difference to big?
Yes you can, I may do this for trial only and then move to having each roller of the same weight. Total of this combo is 39gram so divide by 6 to get each roller being 6.5gram. When 3 rollers are heavier than the other 3, the heavier will do all the pushing and wear very fast.
@@scooterstreetau Thank you for the answer :)
@@ChrizzOG 👌
Excellent. Thanks
👍
Great video, thank you…I have a Suzuki address110 bike that has reached 120 km, would you advise me to put heavier rollers ?
THanks for the support and comment, MZ. Your Address doing 120kph is very good for the UK110. I would leave it alone, already great✌ Most likely the belt is moving to the top gear and the front variator..
HI MATE CAN YOU TELL ME WHAT SIZE ROLLER WEIGHTS I NEED FOR 49CC DIRECT BIKES MOPED TO GET UP HILLS AND BANKS AND PICK UP MORE SPEED THANK YOU PLEASE KEEP POSTING YOUR VIDEOS THANK YOU
I am unfamiliar with this Brand and Model, but I would try a going for 1 gram lighter than the original rollers, tighter clutch spring set and Also look for an unrestricted CDI. Usually the 49cc 4T will accept the 75cc Kit and then your on your way👍
@@scooterstreetau THANK YOU CAN YOU SHOW ME IN ONE OF YOUR VIDEOS AND IF YOU DONT MIND ASKING WHATS BEST LED BULB I CAN GET SO I CAN SEE ON DARK ROADS BETTER THANKS ALSO I FIND OUT WHAT ROLLERS ARE IN NOW AND I LET U KNW IF ITS OK..
@@johnwhite3346 Watch these videos for the tips on changing rollers. We are not sure about the LED headlights...
ruclips.net/video/2XRQ-5nqKlg/видео.html&ab_channel=ScooterStreet
ruclips.net/video/M4TM120Cc7M/видео.html&ab_channel=ScooterStreet
ruclips.net/video/ae44tbCJIdA/видео.html&ab_channel=ScooterStreet
@@scooterstreetau OK THANK YOU AND I WILL ALWAYS WATCH YOUR VIDEOS..
@@johnwhite3346 We love the support, thank you🙌
Great video! looking forward to learn more with you. new sub also
Awesome, thank you! Appreciate the support👏
Just tuned in and subscribed thanks for the very good, informative video. I've got a Sym Jolie scooter where would you recommend I buy my bots from from Australia I want to support the local suppliers so any advice would be greatly appreciated. Thanks again for the vids
We appreciate the SUB, thanks. Send us an email and we can supply the parts for you. www.scooterstreet.com.au
Wonderful explanations..so if i am to understand..how will lighter weights vs heavy weights affect top speed vs acceleration? Can u help me with that?
lighter rollers allows reduced load so energy to rotate is less and so rotation is quicker. Too light and the gearing will progress to slowly causing an over rev.
It takes more energy to rotate the heavier rollers so the accelration is reduced.
Top speed is created by optimising the roller weights.
You showed that the belt wasn't going all the way to the edge of the pulley,saying that the extra travel would have been worth a few extra km/h.
But you didn't tell us what to do to get the belt to travel the full diameter of the pulley.
Could you fill that bit in,thanks.
You have several options. Trial with longer belts without loosing the low gear. Use shims to correct the front pulley spacing without changing the lock nut position on the thread.
I really appreciate your explanation on the CVT. Can I please ask some advice? Sorry in advance for the long message. What if I have a Chinese GY6 50cc engine with 80cc bbk and aftermarket exhaust with Keihin carburetor and higher gear ratio to get better top end. I haven't done a thing with the CVT except for variator which wasn't much. I think I may even be running my stock rollers again. I know that was stupid not to do anything until now but should I use the 1500 or 2000 spring and what size sliders or rollers should I be running? Also does a performance clutch with larger pads make any performance difference compared to a new stock clutch or should I just concentrate on the springs and weights? I am experiencing a big from like 15-30 mph and it seems like I should be getting a better top end speed. I'm currently getting about 42 flat and 50-52 downhill lol. Can you please offer me some advice? I would truly appreciate your help brother!
I would try some lighter rollers and replace any worn parts on the engine including the transmission. Look to change the clutch springs to 2-3000rpm or even higher if the engine is revving. You will need to check the variator top speed by pen marking the face and riding. This will guide you as to which rollers, this is trial and test, try lighter rollers and then try heavier.. The performance clutch is good but buy quality and try for an adjustable clutch like Polini G3. Check the main jet on the carby make sure there is enough fuel and the engine not running lean..
@@scooterstreetau thanks so much for replying! I asked several and no one would answer except for you. So I'll try the 2000 rpm spring and some 6 gram Mr. Pulley sliders? You think this should be sufficient and then try the marker deal on the variator?
Do you know if they make the polini G3 clutch for a 50cc qmb139 Chinese motor?
@@mikecuev820 You are welcome, thankyou for supporting our Channel🙋♂️.
Yes, try the tighter springs but the engine must be revving to engage with better acceleration.
With the rollers/Sliders you must trial different weights to move to a better performing variation. So try 6G and then 6.5G and so on until you have the best performance.. Yes Polini do make a suitable clutch..
what is the excellent combination of weight of of flyball if you want more torque because we leave on a mountanious area. i have only 110cc of scooter. thank you
You would nee higher rpm and a variator that is responsive to quick load changes. Increase the torque spring tension and adjust rollers as required.
Hello, I have a problem, I have a Peugeot Speedfight 1 100cc that recently seized up/heat seized. It was not tuned. I then changed the cylinder, piston etc. It now starts up right away, but after a while it dies all of a sudden (as if you had turned off the key) and then I can start it right up again, this usually happens when I go over 60 km/h or uphill.
When I changed the cylinder etc, I also cleaned everything thoroughly, such as the carburettor, intake, new air filter, new fuel filter (there was no fuel filter before) new spark plug. I also removed the oil pump and put a metalplate with a gasket over the hole instead, I now mix the oil directly into the gasoline.
Some other info that might be important.
- When I drive over 60 km/h, it starts to make a noise from the variator (CVT), it´s sounds quite a lot.
- When it died, I tried to start it again while it was rolling and then it started right away, but it made a noise from the variator, like something "let go" that had been seized up, like a rubber sound, maybe from the belt.
- The variator belt touches the variator cover on the inside and has grinded a cut in the metal.
- In the variator, where the weights are, the belt does not go down to the bottom of the wheel.
- The clutch bell had turned blue from the heat.
- The place where the connecting rod attaches to the crankshaft had turned blue from heat.
- There was no fuel filter on it before. But i now saw there is an internal fuel filter in the gastank, can it affect the vacuum if you now have 2 fuel filters.
Please help me.
Regards
Andree.
Did you find the cause for the Seizure, prior to riding? If not it should be investigated.
@@scooterstreetau No i did not, i tested the oilpump and it worked, but i am not sure about the flow. Anyway, i removed it and put a plate over the hole, and now i use premix. What could have caused the seizure then, all i can think of is lack of oil.
@@NorthSurvival At times as a bike ages the air and fuel flow changes and you see unbalanced mixtures, there are many variables here, poor air filtering, weather changes, rubber perishing, blockages etc. As a precaution I check all of the systems and their associated parts and also richen the fuel during testing..
@@scooterstreetau I took it for a testdrive today and after a while it stopped, so i removed the variator cover to check how it looked and the axle where the weights are that goes into the engine was stuck, so i turned it a bit and it let go, and after it was a bit hard to start again.
What could this be? I checked the fuel line and the vacuum valve that goes into the gastank and they worked, if it was some bad bearings in the engine would that be enough to stop the engine while running? If it would be some bad bearings wouldn´t that just like vibrate a bit more, and not stop the engine all toghether.
Could something in the engine have taken damage when it heatsized? If so what is the most likely to have taken damage.
@@NorthSurvival From your description it does sound as though something has seized internally. Check the piston and and all parts connected to the crankshaft..
Hi do you need a longer drive belt used with a larger d.I.a. vari to allow for full shift and top speed. On a gy6 4t. 87mm.stock vari
Using a longer belt will help get you to a higher gear (top speed). You will be limited by the rear pulley, so use a bet that maximises the diameter of the smallest pulley. Do keep the same width on the belt, do not go wider..
Great video man, can you give me some advice on tuning a 4 stroke . Yamaha xmax 300 . Do you think a variator and rollers would give better accelration ? Do you have any suggestions on rolller weights .
Thank you for comment👍. Yes certainly start at 10% lighter on the roller weight, go for a performance variator which has specific rollers for Xmax and look to include an adjustable clutch system as they work in tandem. This will enhance the transmission performance overall. Def ask Yamaha about the ECU mapping, there may be a different mapping setting for higher performance.
@@scooterstreetau cheers mate , appreciate it
@@kryptonitefitness Welcome.
Very good explanation on how a varaitor works with different weight rollers.
My question is, during your explanation I noticed that you are only using the round type of rollers. Can you please explain what the difference is between the Dr. Pulley brand roller weights. That have more of a cam lobe instead of just being round round. Like the ones you are using in this video?
Rollers and Dr pulley actually slide they dont roll.
Dr pulley has a fixed sliding surface and at the same as the rollers, Dr Pulley have a very good method of action where the rollers can be used in different surfaces of the diameter. It all depends on the material the rollers/sliders are made of for longevity.
I put on a 70kit and pipe and changed the carb (12,5 original) to 82 jet, i have 4,6g and it goes great on idle but if you go for full throttle it revs up to 4k and the wheel doesnt even turn around, please help
Maybe check the torque spring
4.6 is probably too light. Go back to standard rollers or only 1 gram lighter. Now get the carby jet correct first and then come back to the transmission.
Hi at the moment I've just got a stock Typhoon which is deristricted. My daily travel has a lot of hills involved and was woundering if getting lighter rollers could help with that?
Certainly you should trial some different sets of rollers, The stock usually has 7.5 gram so try the 6.5 g set and note the difference on the hills.
Hello,
I just upgrade my artistic spec jog from 50cc to a 70cc kit. Wich set weight of rollers do you recommend me?. I have on the stock exhaust, I noticed to scooter is a little sluggish to get up and go.
Thank you
Test the rollers at 1 gram lower on each roller. Did you adjust the carby main jet?
Do you know what kit will fit a 2022 Honda Navi 100cc Scooter. Thank you!!!
I am guessing the Navi follows the PCX transmission, The PCX 2021 variator from Malossi is 5118776. If you check the spare parts and confirm against the original sizes and dimensions of the Navi you may find they are the same.. Do the research first😁👌
Subscribed! Well explained. Thank you. Got the info I needed.
Can I run just 3 rollers?
Thanks you so much🦘👍. You can run 3 rollers for a short trial only, Not to do long term, double the wear and short lived. Recommend to find the correct total weight, then divide by 6 and then use 6 rollers for this single weight. Trial 6 rollers of the weight 5.5gram, so the total weight is 33 grams. If you do 3 rollers of this weight (5.5g) the engine will rev but the acceleration will drop away after the first 2 or 3 seconds as the weight is not enough to progress the belt through the variator..
You have such great content on you chanel, I shreaded my CVT belt on my gy6 50cc 4 stroke, and replaced it, the belt had no size on it so I think it small case so I went with 669x18x30,,,put everything back together and it wont start,,,replaced battey, coil, plug ,CDI, nothing,,,,could a wrong size belt prevent it from starting? Could I take the belt off and try to start without it on, so frustrating at this point, any advice would be awsome,, TY again!
Thanks for great comments. Sounds like something is bound up. You need to reset the variator, when the belt blows apart the variator usually will get stuck in high gear. Have a good look through the transmission as well, pieces of blown up belt often work their way into crucial moving parts like the pinion gear, etc.
What rollers do I install for highest top speed?
I have no firm answer. You must trial different weights to find this out for yourself. The standard rollers will give the highest top speed but may not allow the best acceleration. A slightly lighter set of rollers will also give the highest top speed and the acceleration will start to increase.. If you reduce the weight by small increments you will eventually find a weight that will no longer get you to the highest top speed (they will be too light to drive the variator to highest belt position). So you need to find the lighter set of rollers that increase the acceleration and also still provide the highest top speed. This will be the optimal set. At a guess try 12-15% less than standard.
So I have a stage6 70cc kit and an exhaust, crank, and intake system and I also have a polini clutch, variator and clutch bell and I was wondering how do I find the perfect rollers, clutch springs and contra spring for my scooter because I am very lost atm
The easiest way to dial in the rollers is to make 1 gram changes from the original, so ride with originals and then change to heavier rollers by 1 gram. Now compare the difference bewteen the 2 different roller sets. Now try 1 gram lighter and between these changes which set has you at the best perfomance.? It is vital to fit an adjustable clutch or tighter clutch springs.
@@scooterstreetau ok thanks this is very helpful
What advice could you give me please for more more and speed talking off please on a gilera runner 125st thank you
Upgrade the engine capacity. If this is not an option allow the rpm to build before the clutch engages. Do this with lighter rollers, lowest gearing on the belt to variator position (use of shims) and later engagement of the clutch shoe, Use an adjustable clutch.
So lighter rollers, adjustable clutch.
Does it matter how the rollers go in like it what direction? I noticed one side is showing metal, the other plastic, should it be facing a certain way? TY for your videos
The metal end that you mention is the end in which the metal weight is inserted into the plastic roller housing. The force of the spinning variator can push the metal insert out of the plastic housing if laid into the variator in an anticlockwise direction. So the plastic cover end of the roller should be facing clockwise in the variators fitted position.
Thanks for that
Your welcome, Thanks for the SUB🦘
Hi ! Impressive video. I have a question . I have a sym hd 300 , polini variator 14g rollers and the blue hard contra, also free dna air filter . The manual says that at 8000rpm max h.power. the rpm has increased from before , and 0-100 very fast but then drop , and the max speed comes vary vary latter and the rpm gies to 8100-8200? What mod would you suggest in order to reduce the drop at higher speeds? And do you suggest a aftermarket muffer?
Thank you.. Try varying the roller weight, Go heavier and then slowly reduce weights, so you can see what the change makes on the road. The spring, try the original spring and then again varying the rollers.
@@scooterstreetau thanks. And what is your opinion about aftermarket exhaust??
@@christos5635 Aftermarket exhaust: Great sound, more noise awareness for drivers. At this cc it gives good mid-range power and can add to the top speed, you need the variator/transmission tuning and you have the variator.
What makes the more expensive "high performance" variator kits any different than the standard kits you can buy ?
They are developed to increase the effectiveness of the transmission by maintaining optimal RPM. With different weights the variator can be fine tuned. This can increase the acceleration and also top speed.
The ramp slot that the rollers are housed have a different angle, some kits have upgraded the size of the guides with smaller tolerances. Often the performance variator is cheaper than the OEM. Saying this, there are cases where the factory Variator will have the same performance as the aftermarket Variator.
Most scooter parts from China labeled high performance are just “cheap replacement” parts. It’s more important that your transmission is properly tuned to keep engine rpm in the power band. The physics is the same no matter how much you paid for your variator.
hello, I really like how knowledgeable you are with the aprilia sr50. my year is 1999 and 2000 carb model. I'm interested in making it rear facing carb but not sure of the modifications I will or might need to do. I had one before but I had stage 6 rear intake with 28mm pkw carburetor. I'm not sure what mod if there was one to make this setup work. can you help me figure out this? I want to duplicate what I had. just not sure of the frame modification. do I need to do this?
Hi Mike, Thank you mate🦘. You may have the early Minarelli engine. Can you confirm? The Aprilia forum might be more useful than me.
Do i need to upjet my carb on speedfight 2 after just changing variomat to malossi multivar 2000?
No.
Hi great video. I used NCY 12g rollers and managed to get my Honda Navi up to 52mph. But at the top end speed I’m getting a vibration, any thoughts on why? I did notice the 12g rollers have different looking sides on them. Do you know if they all have to go in the same direction? Rollers did not come with any directions and can’t seem to find any information or videos on it. I’m thinking I’ve reached peak performance with the 12g rollers but not sure. Any thoughts or suggestions Thank you
The vibration could be coming from any rotational part. All parts must be checked and balanced.
Very knowledgeable guy
Thank you, many years of Learning (mistakes)🙃🙃
Hi \ thank you for this Great video
I have Yamaha majesty 250cc Scooter can I mix 3 of 13 gm light rollers with his heavy original 3 of 18 gm or this is big difference!!?
Can you advise me what is the best choice please ?
Your welcome, thank you. If the dimension of the roller is the same and only the weight is different then YES. BUT We use this combination method to find the correct weight for testing only. Once we have found the correct overall weight we prefer to use all rollers of the same weight. example: If you have 3 x 13g = 39 added with 3 x 18g = 54 then the total of all = 93g. Divide the total weight by the number of rollers, in this case 6 and use 15.5gram weight for all of them.👌
@@scooterstreetau Will I'm always use the original 6× 18g but I feel the Scooter heavy to move for the first moments thin will be normal
Thin I got to use 6×13g rollers but not a very good results make to me !
high Rpm and high engine sound I think the engine loose some power in this case !!
@@muradrufaeel1054 You can try the Variator for the majesty it works very well.
Or, try Rollers 16 gram and also fit clutch spring set.
@@scooterstreetau Ok Thank you very much \ Best regards 🌷🙂
@@muradrufaeel1054 🦘
Hi do you sell or know where to buy as im in sydney i have my first scooter its a scarabeo 200ie 2012 what do you recommend for better take off and do i have to upgrade the jet needle.
Fit a Variator to the Scara, works realy well. We sell parts for Scara. 200.
I have a Wolf Blaze 2 150cc. What kind of rollers should I get to get faster take off and keep maximum speed? I’m in Florida and average speed is about 45 so I want to get to at least 50mph rather sooner. TIA. Stock scooter except carburetor
Measure and weigh the current ones and try a 5-10% less weight of the same dimension, Stiffer clutch springs will add to the result.
@@scooterstreetau will do. Thanks 😃😃
Hi, I have taken off many variatiors, Im tryn to get the variator off of my prescott 50i gy6 and the nut will not come off, I tried my usual torque wrench that always works and my buddy came by with large set of socket wrench and he couldnt do it, have you had a situation where you cant get the variator off and what did you do? Id hate to not be able to upgrade this scooter TY again!!!
That sounds pretty frustrating! Not familiar with that particular make but the GY6 engines obviously all share a fair bit of commonality. I would recommend a rattle gun/torque driver with minimum 350-400Nm torque. In most cases you'll need a fair bit more torque to undo a factory nut than to retighten it. They make have used some thread lock in the factory as an anti-tamper, or it may just be corroded or stuck on. If a rattle gun still wont get it off, I'd recommend taking it to a mechanic.
I subbed!What rollers should i get for a better start,i wanna tune my scooter for wheelies
Straight out SUB, Love it😁. What size are your current rollers? Let's say 7.5 gram, try 6 gram and then make small weight adjustments from there. Too light and it will not maintain the pull and over rev so trial and test🎉
@@scooterstreetau its stock ones so idk its garelli gsp 50
@@hvhnubek The GSP use the Minarelli engine so I would expect to see the 15x12 rollers in the Variator. Try a set of roller 15x12mm of 4.8 gram.
@@scooterstreetau thanks for the advice
hi, i have yamaha jog r with 70cc malossi kit. clutch spring malossi and 17.5 carb and performance exhaust but its broken and my problem is when i start riding the scooter takes too much rpm to move but when it starts moving its fine is it the roller or the broken exhaust? (sorry for bad english)
Do not ride if exhaust is broken! Replace exhaust.
great info
Thanks Brett. 👌🛵
My question is, which roller weights give a higher top speed with weaker acceleration? Heavier or lighter than OEM?
If the belt travel is at highest potential then heavier rollers will make no difference.
Hello, i have a aprilia sr 50 2020 E4 with piaggio engine. The standard rollers on it are 7,2 or 7,5. I changed the rollers to 6,1 but it accelerates very slowly, like the engine revs a bit but i can reach max 45 50 km/ h and it takes a little bit more time than it took when i had the standard rollers
I still have the restrictions on it but without the variator restriction
The scooter is designed to go slow according to regulations, it needs to be derestricted in order to gain more power and top speed. Changing the rollers is one part of the puzzle but the CDI/ECU will need mods and also the carby and def. the exhaust.
@@Octavian17 See reply☝👇
Hi, i just broke 1 of the 18 blades that the variator fan has. Does it unbalance the variator or can have any issue? Thanks in advance
Ahhh Walter what have you done Mate..... Tip: Break off the opposing blade, now remove any rough edges on the broken blades (use sanding paper) to make sure no loose pieces would break away during running. Use the correct tools , don't jam anything in there that may damge the blades, we have all done this at one time😁👌
Now this video is old, but can you explain shimme vario. How far up on the vario will you go? Thanks for your videos
Hello julleboy90, all the content is still very relevant👍. You use a shim to increase (spread) the distance between the variator and the fixed face fan. This allows the belt to sit at the lowest point on the front pulley. May be used when a different size belt is used, wider and longer perhaps.. we like to have the belt very ear to the outside of the variator to allow the highest gearing.
Hi Scooter street! I recently bought a china 2stroke scooter. It had 4g rollers when i got it, they were worn, with flat spots. I replaced them with 6g rollers, it had poor acceleration and top speed then. Now i put in 5g rollers, it seems to have good performance now, but im afraid it is reving too high at high speed. It has leovince exaust on it and stock 50cc cylinder. Can scooters get damaged from reving too high? I dont know how much rpm is normal, no experience with scooters
No, it cant really rev too high so don't worry about high RPM. 2 stroke engines are high revving engines, a near standard scooter such as yours cant really over rev to the point of damage unless there is a serious mechanical issue. You should try the marking of the variator to see if the belt is reaching the top of the variator. Also a heavier torque spring will counter the heavier rollers. Do some trialling and come out with the best outcome for the transmission..
Can you put 2 light and 4 heavier in a hyper2 variatior, or only on exactly 180°
We suggest that you trial different weights to get the bet performance for your set up. Once you find this best performance weight, then find the total weight of all of the rollers and divided this total by 6. This is the weight that each roller should be. If an 8 roll variator then divide by 8.
Hi guy, i have some question:
-what is your recommend clutch shoe material for stop-and-go city riding!?
-stock clutch shoe (soft) and carbon-kevlar shoe(hard), which one hit the bell rapidly, and give the best friction force!?
-if i choose the more friction shoe, i must choose lighter roller weight to avoid the belt from slip, isn't it!?
-for normal riding everyday, we must take off at high/full throttle or just slightly throttle!?
Thank you 👍
-Clutch material: Standard clutch is fine, always maintain and clean the shoes and bell housing, upgrade to a higher class when wear is present.
-Stock clutch shoe: Street spec or Race spec! Choose what you need for the riding type your doing.
-The trans should be balanced, example: if race class go with race class for the entire system. The roller weight determine rpm and also top speed.
- Throttle: Depends on the scooter cc. For me on 50cc it is always full throttle and control with the rear brake.
OK I know after market variators are different in its ramping. I bought a malossi variator with 9 gram rollers for my kymco super 8 50cc 2t. I found out stock is 8 gram rollers. I've bought my leo vince exhaust. How would 9 grams be in my scooter
Try the 9 gram Malossi recommend, you may find it limits the initial rev. So move the a 7.5gram set. You need an exhaust for the Super 8 because they are not so super in their speed.
Ok I have Leo Vince exhaust, malossi cut out filter for air box. Could you please tell me what size main jet I need for kymco super 8 2t 50cc. I'm in toowoomba so a little different altitude
I have a 2012 Piaggio Typhoon 50cc 4T. What do you recommend to upgrade the rollers, clutch, etc...in order to get faster of the line and going up hill? I want to modify these items to get more torque and speed. Do you recommend replacing the carburetor kit? How can I deactivate the restrictor?
The small engine 4 stroke is difficult because it simply produces very little power. Try lightening the roller weight by 1 gram for each roller and use an adjustable clutch to fine tune the engagement of the power to the wheel. Check for derectrictions in the trasmission, carby and the exhaust. Fit a Malossi single air filter and raise the main jet 1 point.
@@scooterstreetau got videos for any of these upgrades? What about links to where to find these parts?
Have you seen our YT channel? See the description for details.@@303Conceal
@@scooterstreetau I've been watching several of your videos with these upgrades. Question is, Is the Piaggio 50cc 4t any different from the Fly you show or the Vespa? Are they basically the components?
Yes similar but the larger capacity do not have the restrictions of the 50cc engine.@@303Conceal
Hi. Can you put more than one shim in?
Yes.
What can i do to make the unused part with the pen park smaller??
Many things to try: After each change test again.
Change the rollers to heavier.
Replace worn parts and service variator and clutch.
Use a performance 9or longer) belt but not Kevlar.
Great tutorial. I have changed mine to molassi Multivar variator. The rollers are 8 gr. Feel the rpm is high before the bike move. Should I be looking into the clutch springs
Rpm should be high to allow a stronger engaging of the clutch. Can you compare it to how it was originally?
@@scooterstreetau How often should the rollers be changed. Feel now it has slowed down after 8mths
@@swimwithcoachraven1532 Worth checking every 3-5K
@@scooterstreetau originally rpm not high. Looking to build more torque
@@swimwithcoachraven1532 ok well you are on the right track, RPM higher with a later engagement of the clutch to boost from the start position. Tighter clutch springs will allow the rpm to build, so give the springs a go.
Ok so on a stock scooter and I put in a hi speed variator do I put in the light rollers or the heavy one for best performance?
I would tune the variator by trialling different weight rollers until I arrive at the performance I am looking for..
@Scooter Street ok, well, i only have stock, 4.6 and 6.5 gram rollers. And as far as the clutch springs go, I'm using the heavy yellow ones. I thought maybe i should use the lighter ones cause I'm only using the stock 50cc. I have the big bore 80cc kit, but it's still in the box.
@@g8some Fit the rollers first and trial different weights.
@@scooterstreetau ok
Can you tell me what peak low end torq? Vino 125
I am not sure, find specs.
hey mate what roller weight would you recommend for a vespa s125 model, mine came with 19gx6 stock rollers totalling 114g, but ive currently got 12gx6 rollers installed with a harder than stock contra, this gave me +10km for top speed and higher acceleration. But i think i still havent reached my variators full potential, what roller weight would you recommend? thankss
That sounds like a fairly large increase for the factory variator. The factory variators are very limited in their tuning potential on their own. I'm very doubtful you will be able to get more out of the factory variator. The Malossi variator makes a big difference
Does it matter which way the rollers drop in, ( with the "brassy" side one way or the other ) ?
Yes, you need to make sure they all face the same direction, with the smooth (non beveled) side facing clockwise. Double check the direction with your manual. Also, I think my manual called them weights.
@@JB-xi2yv Good answer JB 👍
Good question! When rollers are manufactured the weighted insert slides into the outer shell. Some rollers have an end in which the weight enters and the shell has a capped end to stop the weight going all the way through the shell, this capped end is called the 'closed end' and should always face away from the direction of rotation when placed in the Variator. Other rollers are glued and do not have a closed end so it will not matter. So always look for the closed end when placing the rollers.
Yep that's what I thought, the closed or capped end , opposite the direction of rotation , correct??
So the " closed" or "capped" end opposite the direction of rotation...
Is it essential to change the springs if I use lighter rollers?
Not essential, changing the spring tension determines at what rpm the clutch will engage. Once you are happy with the roller weight then you can set the clutch engaging.
I bought the variator tool for my piaggio zip but now i dont know how much to tighten the everything? I dont have the tool that shows how much its tightent? Sorry for bad english
Tighten the nut and buy the tool soon so you can test the tension.
@@scooterstreetau whats the name of the tool? And where do i buy it also is it really needed? What if i just tighten it until i feel resistance
@@numankralj You can use a torque wrench, rattle Gun or hand wrench. Do it once do it properly👍
Hi Scooter Street, I am Marc with 70 kilograms of bodyweight, I just want to have an advices from you with my Yamaha 50cc scooter set-up upgraded into 47mm Block and Re-chambered Cylinder Head, 70-90 V8 exhaust Pipe, 24mm Carb, Kitaco Racing CDI, 13:34 Secondary Gear, Racing Coil, CT manifold with .35mm Polini Petals, 1000RPM Center Spring and 1000RPM Clutch Spring, Cheap Racing driveface and Pulley set, stock Clutch Lining and Bell, my question is what roller weights should i try to reach the right acceleration and Top/High?
Hi Marc, difficult to have an exact answer. Like all the other variator questions the best answer is to start at the factory rollers and reduce from there. There are instances where the roller weights are increased but usually lighter will be more effective. Trial and testing.
Great video!! I have a question
I run a piaggio typhoon with 70cc kit
Main carb with 74 jet
Malossi exhaust
Malossi air filter
But the problem is that when I go to a big hill it is like the spring can’t change the transmission (I have factory heavy rollers and factory soft spring from 50cc) is it better to leave the rollers and take a harder spring ? Or is it going to put to much pressure on the belt? If I change the rollers with lighter is it going to lose grip on the belt ? (Sorry for my English ,I hope I am understandable)
Well Thank you😁 we appreciate the views and comments.. A few things, make sure the carby is tuned, the air-mix screw all the way in and then 1 single turn out, set and forget. Is the jet size large enough? Is it running lean? The factory rollers are 7.5. Try a 7.2 or 7 Gram set ensuring the belt is always reaching the outer. Diameter of the variator. I suggest this because it is easier to work out the solution by changing the rollers instead of the Torque spring. By the way make sure the clutch twist rotation is smooth and not stepped.
@@scooterstreetau
I have 6 gram rollers
I have some holes to the filter box also …
And the air screw is half open
I will try Malossi green spring in order to help it with the transmission….if it doesn’t change I will buy new even lighter rollers to try again. My plug color is brown
@@flawlessmusic8850 For variator testing , remove 2 rollers to see if it makes a difference, there are many ways to test with the parts that you already have, I am not to sure about holes in the airbox unless you have the carby tuned to suit.. too much air can lean the mix and the power is reduced and it bogs the engine under heavy throttle..
@@scooterstreetau
Ok perfect I will try removing rollers
Thank you !!! I have seen all your videos on your Chanel 😂 I wish I had Malossi piston set but I have only Malossi head with a cheap 47 kit 😂
@@flawlessmusic8850 Did you measure the Squish?
Having your CVT modified, can it increase top speed ?, but the engine is still stock
Yes. The CVT has many opportunities for speed increase. Particularly from stock Transmission.
I have just bought a 125 scooter sym which gives 12hp what i need to earn more horsepower??
You can fit a 150cc or a 160cc cylinder kit or higher and also the tuning parts to go with it.
In Holland the variator has a backplate that acts asa restrictor ,it limits its expansion. I read that this piece can be removed.
Any experience with that?
Good video btw. Thanks. :))
That is correct, remove the cage over the ramp plate, usually 3 screws retain this. Thanks Bro.