Correct. And the amount of fuel needed could vary even on a daily basis depending on humidity, temperature, and other factors. Using the tape to cover the holes drilled into the airbox lets you control the amount of air on-the-go, without always having to take apart the carburetor for maximum performance.
@@bb2na473 Theoretically, the fuel injectors should compensate up to their maximum output level, after that point and if there is still too much oxygen, the engine will run lean if no safety measures are incorporated into the ecu.
Not necessarily. Your not running a supercharger which forces air in then you need more fuel. These engines can run without a filter. They will not suck in more air than they need. This is why the carb has the flaps that open to allow air in. Run with a pod filter screw the box all together.
I did this sort of on my Coleman rb100. I just took the front plastic cover off “air box” and zip tie secured the foam filter underneath and just drilled some holes in the tiny exhaust box. Made it just that much more peppy for a 100cc mini bike. And didn’t affect the carb and actually has a tiny bit of nice exhaust pops on deceleration
I am of the opinion that a 2 stroke motor needs a big airbox so "dead air" is available for sudden wot use. The pod filters i have seen have a flat back and can cause a pulse wave which double carburates the main jet, which o er richens the mix. I think you are on the right track...
Very interesting. If l could make a suggestion buy a few syringes and take off the black rubber plungers then select a drill bit roughly the same size as the inner part of the plunger and drill the holes to this size. If you need to cover the holes now you can use the black rubber syringe plungers and it looks great instead of tape.
Yes absolutely - I wish to gain knowledge from European tuners. Here in North America, scooter tuning is not as popular especially for european/italian scooters. There's a million questions I want to ask about modifying the piaggio typhoon but due to language barriers I don't understand the euro forums much.
guys i need a help i have a typhoon 70cc i put a stage 6 exhaust and cluch top performans and its top speed its only 80km what can i do for more speed?
I mount a small electric fan on the airbox ran independantly by lithium rechargeable batterries.of coarse you would have to drill a hole in the top of the airbox.
I wonder how a karting airbow would perform or a home made airbox with a pod filter inside it, think i am going to try to make something like that.Still great video.👍
Excuse me I meant to say a9 camshaft high performance can use with stock cylinder head or get an aftermarket racing cylinder head with bigger intake and exhaust valves then you jet your carburetor and go to aftermarket air filter it will make a difference
Get rid of the stock factory air also you can jet the carburetor just a little bit higher with the jet numbers and you will see a difference and get a different ignition system
You could start with a 89 camshaft aftermarket air filter and ignition system upgrade and then you could do I upgrade cylinder head with bigger intake and exhaust
Theres no real point in drilling lots of holes in your airbox if their total area is much larger than the choke size of your carb. The carb wont pull any more air in than this choke size! The best you can do is to smooth out the air flow rather than have a complicated route into the carb. Unfortunately, this does mean that the intake will be noisier than standard but if you're not too worried about this, knock yourself out! Far bettter to find out the surface area of your carb choke and add holes that give, say, 10-15% more area to give the optimum flow rate without shot gunning your stock airbox full of holes you dont need! They'll only need to be blocked off again to keep the rain out! IE, for a 24mm carb area of 75.4MM squared, you only need 3 holes of 25.13mm squared, or 8MM. (about 5/16") Your 4 x 13/32" hole size is overkill given that you still also have the stock hole as well! (Unless you're planning to block this off!)
Very true and great comment. There comes a point where additional holes will not offer extra air because the bottleneck is no longer the airbox design, but rather the carb and engine size. In short, infinitely more holes does not mean infinitely more power is conveyed here. I apologize for not mentioning that and I really hope nobody turned their airbox into swiss cheese! Your second point is also very true. This mod will make your intake much noisier as evident in my subsequent episodes. With that said, my choice of the number and size of holes were entirely for 1) aesthetic - this is entirely a personal and subjective opinion of taste about symmetry, odd/even number of holes, etc. (yes unfortunately I am cursed with that sort of pet peeves) and 2) 13/32 drill was the first one I grabbed out of the raffle/tool bag, so 13/32 it is. I figured if I were going to upgrade piston and carbs in the future, should it ever happen, I wouldn't have to drill the airbox again.
The guy I got my scoot from ran it with the tube to the filter box, mobox or filter, and wondered why it stopped running, it didn't have enough compression to start! The air was coming from about center of the rear wheel! Where all the dust is kicked up! Between that and running it with no exhaust! It was in sad shape, I didn't bother trying to fix it, I just replaced the top end, with a BBK! And about to go to a 52.4mm bore, and big valve head, and cam, I also have a intake, and 24mm carb, and a free flow exhaust, after the gear swap, and slider weight tuning, with the NCY rear sheave and clutch springs, I'm going straight to the 2k rpm springs, and Kevlar belt, the greatly improved head, and about 11:1 compression, and larger flow capabilities, it should make a lot more power! I'm hoping for about 15hp, from 86cc, at 10k RPM, if you want to go faster, the first thing should be a big bore kit, and gears! With a carb and exhaust, then tune the variator! And may as well do a cam and spring upgrade while it's apart, atleast a 20mm cv carb, under 80cc, or up to 20mm slide carb, and 24mm CV carb, the modified stock air box is a great idea, and over 80cc a minimum of 24mm CV carb, and upward of 26mm, with upgrade head, with larger valves of course, a stock head, no need to go over 20mm, a 24mm carb isn't going to help much on a stock head, maybe if it's ported, and the valves are unshrouded, if the valves are like my stock head, valves were, it would actually flow better with the valves chucked up and ground down about 1mm or do, they seated on the smallest part of the valve, putting a lot of valve in the way of the flow, and the machined Ridge from the seat being installed, shrouds the valve a good bit, improvement of the low lift flow, 80% of the flow is in the low lift portion of the valve opening and closing ramp, it's only fully open for a fraction of a second, but either opening or closing for a couple fractions, so improvement by removing obstacles to the flow, can improve power through out the power curve, possibly flattening out the curve by improvement at low rpm and high rpm power, slot of this can be done without cost, at home, but even a stock engine can use a jet change, going up 1-2 sizes, and adjust the needle to fine tune, if it does not want to even run properly with the needle in the lowest setting, the jet needs to be 1-2 jets larger, then set the needle about mid way, I'd test it out with the jet with the needle adjustment first, if the engine doesn't run with it lowered fully, go to a larger jet, it should run much better even stock with a slight jet change, but the spark plug will tell the truth, always check the plugs, it shouldn't look new, and it shouldn't look black a slight tan color of the insulator and the carb is about as close as it's going to get!
Nice read and great job. The spark plug is great way for crude tuning, but once it gets close to perfect tune you'll have to tune it with better equipments.
Running a 2 stroke lean has nothing to do with your oil .. it's the lack of gas .. which will cause your scooter to run hot. And it will melt a whole in your piston. Don't just guess on things. You could destroy someone else's scooter by giving them bad advice. You could have made them same video but just made it as a looking for advice video and had people give you advice. And then you could have made a couple follow up videos. ⁷ if anyone needs any advice on upgrades or repairs message me. I will give you some advice or I will let youkl know who to talk to. I understand how hard we all work for out money.
It's entirely up to you- drilling holes provide a more direct path for which the air can flow into the engine. If you're not happy with the results you can always cover the holes back up making this modification quite versatile. The malossi red air filter on the other hand provides less filtration than the stock one. When you're using race filters like those, strict maintenance guidelines must be followed or you will risk contaminants getting into the engine
Danny Castillon assuming no factory restrictions present, I would find out your engine’s reported (or dynoed) peak horsepower rpm, and then spend 6-10$ on variator weights to tune the transmission to operate at peak power
Not necessarily. Your not running a supercharger which forces air in then you need more fuel. These engines can run without a filter. They will not suck in more air than they need. This is why the carb has the flaps that open to allow air in. Run with a pod filter screw the box all together.
You are incorrect in assuming that only a supercharger will require more fuel. The air flow is restricted by the airbox baffles which are in place to muffle noises. Providing a more direct path will create more noise but also improve airflow. A pod filter is largely unprotected from the weather and elements and therefore not a practical suggestion for scooters that commute to work daily.
@@FIFTYmil FIFTYmil Not sure what you mean by your statement but any Supercharger or turbo engine will need more fuel than a non supercharger or turbo engine will. No way around it. Not sure what your back ground is but I have 20 years experience with all types of engines. Racing, commercial, mitlitary civilian etc. Yes you can run a pod air filter in the rain if you do it right. Not going to get into that but its been done on many applications. You can run a cold air instake also with a ram air if you do it right. How do you think car that come from the factory like the Trans am ram air is built? Rain doesn't mean nothing unless you are not creative.
@@csb772 My statement was in response to yours. Your first sentence immediately stated that I am not running a supercharger and therefore does not need more fuel. I am indicating that my modification provided a more direct path of intake which increased the amount of air going into the combustion chamber. As such, I had to increase fueling and thereby created more power. The fact that you "can" run a pod filter in the rain does not say anything about practicality and it certainly doesn't mean you should either. You "can" run an engine without a filter but clearly all manufacturers adopted the airbox and filters on all of today's vehicles for obvious reasons. Therefore I will not discuss further on that point.
Yes!!! The only issue with plugs is, when installed into the airbox, it might act as a restriction for the stock airbox and create turbulence. Tape in contrast provides a flat surface thats more or less like the stock airbox before it was drilled.
Would this work for the Scooters that are newer like 2019 scooters that have the air box/filer under the seat and is more enclosed unlike yours that is on the side of the bike there?
In theory, yes. This video illustrates that most airbox are built with chambers to reduce intake noise. Removing these chambers or providing a direct intake path would increase airflow at the cost of more noise.
Hey there, nice vid! I have a question for You. The scoot i own is 2013 Yamaha Neos with 49cc engine. Everything is stock, just a small transmission mod (lighter weights) and a sports exhaust. I really hate it when accelerating. I mean it's really slow. When it is cold it goes like a rocket! But when it heats up... Such a pain. Tried carb adjusting- didn't help. I consider of changing the main spring to a red one in the clutch so this may help. Pretty sure the belt is done too. The top speed i can get to is 34 mph. The scooter has a 2T engine and I don' t think that this is all it can do..
A 2T 49cc should perform better than 34mph for sure. You observed that it performs very well but once the engine warms up, it goes very slow. That's indicative of your fuel/air mixture being too lean. If you richen up the carb by first tuning the idle mix, followed by need clip position adjustment (if available), and then increasing your main jet your should preserve the performance you desire while running cold.
Thanks for this great vid...I have a new '16 Vespa Primavera 150. It's fuel-injected and I've installed the Milossi exhaust system and the red air filter element. It improved my top end by about 6mph (from 66 to 72). I just did the Variator mod and installed lighter sliders to replace the rollers and that made a BIG difference in power but reduced my top end by 2-3mph; now maxing out at 70mph. I'm a believer in better intake systems feeding more air to help maximize the combustion efficiency. What do you think about doing your mod to my airbox? I ask because it's a pain to remove the airbox on this bike... ;-) I know...no pain, no gain.
Lighter sliders, if they gave you better acceleration, shouldn't reduce your top speed. What RPM were you at previously at 72mph and what RPM are you now at 70mph? I believe the lighter rollers may be slamming you into the rev limiter and holding you back. The airbox mod should work but two things to consider: 1) If you exceed the flow rate of your fuel injectors, you will be starving the engine of fuel and any additional airflow on top would equate to more power. Fortunately you can always tape the holes back up and perfect it to match your max injector flow rate. 2) The malossi filter element already filtrates less than the stock filter and the airbox mod would subject the engine to more direct (and often dirty air). Strict maintenance guidelines must be followed to ensure as little contaminants getting into the engine as possible.
Thanks! I don't have a tach hooked up yet so I don't know the RPMs...when you say slamming to the rev limiter, how and with what does the factory set that up? Can I override it? I'll do your airbox mod next rainy day! Cheers!
Often found on 4-strokes the factory ECU governs at what RPM to cut back the engine, and thus forming the rev limiter. Certainly a lot of aftermarket CDI's can and will override this because peak horsepower can be found beyond this limit. One way to do this is to fool the factory ECU into thinking that the RPM is not exceeding the limit. I installed a NCY CDI into my 4-stroke Honda Ruckus and I ride it at 9900RPM.
Unfortunately, I don't have a tach so I can't tell your the RPMs. I DO have the add-on tach that clips on to the spark plug wire but I can't open up that door yet until after warranty period. I was warned by the dealer. However, opening up the clutch/variator cover was OK. Go figure...
That's hilarious. Add-on tachs are non-invasive and tachs like the one I use (episode 0) virtually just wraps around the splug plug wire and it can already tell you the RPM. No wiring, no soldering, no plugs. Just wrap a simple wire around the spark plug wire and you're good to go. I'd be impressed how they would find out if you have ever installed a tach to your bike.
I sort of did something similar and then the throttle was malfunctioning so i had to fix what I did.What do I have to do after the holes?You didn't explain it in the video.
Will this work on a 150cc 4 stroke? I wanted to add a k&n but there is a bunch of hoses and I don't want to remove my air box if I don't have to incase I ride to work And it rains
Yes but it depends on your airbox. The effectiveness depends on how restrictive your airbox is and the path of travel for the air. Create unnecessary turbulence and your airbox will flow even worse than before. The good thing about this mod is it is reversible. If you're unhappy with the results, plug the holes back up!
heyi did this free mod but my moped start like when i riding it i feel like my moped is struggling and it jerking when i get into 10above full throttle please help thank you
Jason, if it's only a mid range issue I would consider just adjusting the idle mix (check out my other video on that) but are you sure your bike is performing fine at WOT? (wide open throttle). Typically with a pod filter I see both a idle mix adjustment, needle clip enrichening (if available), and stepping up the main jet. Pod filters are one of the more intensive modifications for the engine compared to something like a roller weight change.
Using yamahlube filter oil already. A common misconception is that filtration is either 0% (no filtration) or 100% (perfect filtration) when in reality the foam filter's performance is a spectrum depending on variables like how much oil you used, how dusty your riding condition is, how direct air is being fed to the filter, etc.
perfectly right. I meant applying some filter spray on the surface, followed by a soft massage to penetrate the top layer of the foam, forming a thin, but yet homogeneous pelicule of fine oil catching any potential harmful city dust. Drowning your foamy is not a solution!!! :-) by the way I use Putoline
Most of the time exhaust spitting flames can be associated to a overly rich condition. This does not mean it's bad as many tuners like to err on the richer side for better engine longevity at the cost of poorer fuel mileage.
***** Randal got exposed for lack of subject knowledge. Pick on something else to criticize about. Now I understand how you ruined a 50cc and then went to a 80 and then a 150 lol.
***** BraapBraapWheelie It is hard to tell what is the cause of the backfiring based on just the information you have provided. As Randal mentioned, engine detonation could be one of the many scenarios - but not the only one. What size engine do you have? Is your engine carbureted or fuel injected? Does the backfiring happen after you shutoff the throttle abruptly, while accelerating, or in other situations? What was the last change you did to the motorcycle you noticed the backfiring? Based on the improvements you found, regardless, I don't think you will have "blown up valves, engine, or pipes that will blow apart" lol. That seems like a bit of a over-generalized paranoia coming from someone who ruined multiple bikes already, doesn't it? ;)
is there a video of you adjusting the camshaft?, i always alwaaays wanted to clean the head, valves and piston. but i dont know how tf should i do and what tools do i need, i watch them videos about how to adjust camshaft and valves but most of them are not straight to point.
While I do not have experience with the bike, the same theory covered in all the following episodes apply. Feel free to ask me questions if you come across any obstacles.
HI i have a problem i own a peugiot vivacity sportline and the moped is great but i wont go over 60kmph it doesnt have an electronick restriction or on the variator just took the restriction of the exaust, changed the cluch but it has the same cluch spring but it still wont go over 60kmph .PLease give me some advice on what to do?? thanx
FIFTYmil it does but when i find a veary big downhill but when it does it makes a weird saund and its like te motor isnt doing anythin sorry fore the spelling love from Boznia and Hervegovina. thanx
I would suggest watching episode 0 all the way to the end on my channel and do the following: 1) Tachometer 2) Determine your current RPM and identify your engine's peak horsepower RPM 3) Complete any modifications you would like to do to increase engine horsepower 4) Determine the new RPM and how close it is to your peak engine horsepower RPM 5) Tune the roller weights to target your peak engine horsepower RPM. After that you should have a much faster scooter!
Hey bud, i tired this on my formula 50cc. It's a 2017 scooter. But all i really got was a little extra noise.. barley noticeable lol. As for the power? Took it for a spin, but didn't really notice any increase? I haven't retuned the jets tho.
8drifit I had to rejet after this mod. More air, more fuel, more power. Adding more air without more fuel would result in the same or less power than original setting
take out the inlet pipe,install malossi filter (not pod) and no need to drill.i shouldnt recommend this to anyone.wasted plastic.u can even use runner big type airbox.
Two completely different things. Using a drop in malossi filter would not be the same as drilling for this particular type of airbox. Drilling provides a much more direct intake path compared to the baffled pathway original.
Stock factory belt cover of a 2005 Piaggio Typhoon 50cc or NRG Typhoon. They should be the same for most Hi-Per2 engines including Vespa, Aprilia, etc.
xViperCodes | C# - VB - HTML thanks viper. Eventually I will look into increasing displacement but I actually want to import a piaggio 125cc engine and motor swap!!!
***** I haven't really looked into the details yet but it may require a little bit of welding. If not that would be a bonus! For my 150cc swap into the 50cc Ruckus that required extensive modifications
Cal-Metal Desu yes but with fuel injection you are limited by the flow rate of the injectors. Providing more air than their flow rate will result in a lean condition. The good thing about this mod is if that problem arises, you can just tape the hole up and tune on the go.
With fuel injection it's best to leave the airbox and induction well alone unless you have access to a rolling road dyno and can re-map your ECU. Just let the mass air and air temperature sensors compensate for exhaust changes untill you need to go further and are prepared to spend a lot of money for what is, not a lot of gain!
Drilling holes into your airbox will work for essentially all bikes in theory. Knowing where to drill it is essential because if you drill holes further downstream of the filter, then the filter can not do its job filtering the air.
@@FIFTYmil it's better to remove the snorkel rather then drilling holes into your aitbox tho, removing the snorkel doesn't effect its use in bad weather conditions, if anything drilling holes into the side of your airbox had a higher chance of letting water in. Your method works but it doesn't make sense when you can just remove the snorkel and get the same amount of airflow
@@2SmokeyGuru Good point about the leak in. If a scooter is parked in a heavy down pour the rain will definitely get into the airbox. However, more water would make their way into the engine with an open filter while riding because the carb is directly facing the rear wheel where the water is being kicked up and splashed around. With holes in the airbox you can easily tape the holes up and it would perform as well as stock against the weather.
Marau PT it is all about the correct fuel mixture. Sometimes you don't need to rejet if the mod you make moves it closer to optimal mixture. If you're off the optimum you produce less power. On a 2 stroke bike improper mixture results in insufficient lubrication leading to overheating and piston seizure or detonation.
Srsly? Before you make that claim, please define back pressure in the 2 stroke vs 4 stroke context and clearly explain how back pressure “will decrease performance”.
FIFTYmil yeah but i was talking about the air filter, the snorkel has increased air flow because its more smooth thru the corners and it has less corners. sure it will gain hp but not because of the air filter
FIFTYmil oh im sorry, didnt watch the whole video lol, but i wanted to say was that a simple filter will do a good job as well but the airbox is restrictive but you fixed that in the way you could for the less amount of money :)
A less restrictive filter will improve airflow at the cost of less filtration, regardless of airbox design. A more direct approach shown here is to bypass the baffles and pathways integrated into the airbox design. Agreeably they are there in the first place to reduce noise, emissions, and provide better all-weather performance so you are indeed giving some of that up for better performance under ideal conditions/conditions I ride my bike in. That is the cost of modification tuning
Yeah all of my scooters including insurance and gas money are now basically free (or have paid themselves off) with a total view count of more than 2 million views. Thanks!
If you leave all the holes covered/plugged, in theory it should be the same as original and no jetting is required. When you increase the airflow by opening up the holes, then you must rejet in order for the engine to produce more power.
HI BRO. am from india and own an APRILIA too, mine scooter is APRILIA SR 150, with 155 cc engine max. torque 10.4bhp @6750rpm max. speed 120kmh. can you please suggest me helpful mods for practicality and cosmetic and technology ,not performance. and is it OK if I colour the silver cvt box as BLACK. love from India 😊
Yes it is absolutely ok to paint the CVT case black if you know how to do it correctly. One of my favorite mods to the scooter is a side kickstand, lower handlebars, and a cell phone holder. Check out the holder at this affiliate link: goo.gl/YRppLv
FIFTYmil HI BRO. i did that was a n awesome mount. can please explain me that lower handle bar. and thnx. for your feedback, you are amazing are scooters.
A lower handlebar would look like this: scontent-sea1-1.xx.fbcdn.net/v/t31.0-8/14372069_772838519524291_483188084711937082_o.jpg?oh=317773086b9c8a2fd595874e51f76d28&oe=5963908C
+THE KILLA - Had an Iridium spark plug, gap it to 0.9/1mm. Keep the scooter clean and well maintained. Tires pressure checked. Lube all the key locks/hinges (WD40 or equivalent). Maintain the air filter immaculate clean. Had a good fuel filter. Had a couple of hooks for cargo load, carry a few bungee cords,just in case. Had some carpet in the under seat compartment... Enjoy. ;-)
Marcel Celliers So based on your analogy, since I own two superbikes, I ought to say - "Marcel, please buy a real bike and stop playing around with your little thing that you call a motorcycle"
man thanks. helps alot, from Tennessee, USA. ive been watching of your videos and all of em are helping
Thanks for the kind words Raymond. As always watch them with discretion and based on your riding needs ; ) Happy tuning
when you give an engine more air, you've got to give it more fuel to not lean it out.
Correct. And the amount of fuel needed could vary even on a daily basis depending on humidity, temperature, and other factors. Using the tape to cover the holes drilled into the airbox lets you control the amount of air on-the-go, without always having to take apart the carburetor for maximum performance.
@@FIFTYmil what happens when you do this airbox hack on a fuel injected scooter?
@@bb2na473 Theoretically, the fuel injectors should compensate up to their maximum output level, after that point and if there is still too much oxygen, the engine will run lean if no safety measures are incorporated into the ecu.
Not necessarily. Your not running a supercharger which forces air in then you need more fuel. These engines can run without a filter. They will not suck in more air than they need. This is why the carb has the flaps that open to allow air in. Run with a pod filter screw the box all together.
I did this sort of on my Coleman rb100. I just took the front plastic cover off “air box” and zip tie secured the foam filter underneath and just drilled some holes in the tiny exhaust box. Made it just that much more peppy for a 100cc mini bike. And didn’t affect the carb and actually has a tiny bit of nice exhaust pops on deceleration
Thank you , it helped me alot . Greetings from Cancun Mexico
You're welcome, thank you for watching. We need to scoot one day when i visit Cancun
I am of the opinion that a 2 stroke motor needs a big airbox so "dead air" is available for sudden wot use. The pod filters i have seen have a flat back and can cause a pulse wave which double carburates the main jet, which o er richens the mix. I think you are on the right track...
Very interesting. If l could make a suggestion buy a few syringes and take off the black rubber plungers then select a drill bit roughly the same size as the inner part of the plunger and drill the holes to this size. If you need to cover the holes now you can use the black rubber syringe plungers and it looks great instead of tape.
This is a really neat idea! Much better looking that silver duct tape ha ha
@@FIFTYmil man why dont you post anymore ?
The best drill for that air box is a cone drill makes it easy.
Nice to have garage in you home. So you can modify your scooter or car. Nice
Yes I am really grateful for that! Thank you for watching
Man you should come to Holland this is what all the 16 year old boys doo man. I have 3 scooters 2 of them 70cc.
Yes absolutely - I wish to gain knowledge from European tuners. Here in North America, scooter tuning is not as popular especially for european/italian scooters. There's a million questions I want to ask about modifying the piaggio typhoon but due to language barriers I don't understand the euro forums much.
I'd love to. Euro scooter tuners are god
FIFTYmil i have a typhoon 70cc if you have any questions just ask in English! On the moment i am getting my typhoon to a top speed of 130km/u
Awesome. Do you have a build thread and how did you bore out the stock chamber?
guys i need a help i have a typhoon 70cc i put a stage 6 exhaust and cluch top performans and its top speed its only 80km what can i do for more speed?
DO NOT MESS WITH THE AIRBOX! unless your prepared to upjet significantly and do a lot of tuning. Otherwise you will run lean and sieze.
I mount a small electric fan on the airbox ran independantly by lithium rechargeable batterries.of coarse you would have to drill a hole in the top of the airbox.
I wonder how a karting airbow would perform or a home made airbox with a pod filter inside it, think i am going to try to make something like that.Still great video.👍
Glue some nylon material over holes to vent keep out dust
The opposite of what I did!
I ment after you drill the holes to keep out the crap
Excuse me I meant to say a9 camshaft high performance can use with stock cylinder head or get an aftermarket racing cylinder head with bigger intake and exhaust valves then you jet your carburetor and go to aftermarket air filter it will make a difference
Get rid of the stock factory air also you can jet the carburetor just a little bit higher with the jet numbers and you will see a difference and get a different ignition system
You could start with a 89 camshaft aftermarket air filter and ignition system upgrade and then you could do I upgrade cylinder head with bigger intake and exhaust
Theres no real point in drilling lots of holes in your airbox if their total area is much larger than the choke size of your carb. The carb wont pull any more air in than this choke size! The best you can do is to smooth out the air flow rather than have a complicated route into the carb. Unfortunately, this does mean that the intake will be noisier than standard but if you're not too worried about this, knock yourself out!
Far bettter to find out the surface area of your carb choke and add holes that give, say, 10-15% more area to give the optimum flow rate without shot gunning your stock airbox full of holes you dont need!
They'll only need to be blocked off again to keep the rain out!
IE, for a 24mm carb area of 75.4MM squared, you only need 3 holes of 25.13mm squared, or 8MM. (about 5/16")
Your 4 x 13/32" hole size is overkill given that you still also have the stock hole as well! (Unless you're planning to block this off!)
Very true and great comment. There comes a point where additional holes will not offer extra air because the bottleneck is no longer the airbox design, but rather the carb and engine size. In short, infinitely more holes does not mean infinitely more power is conveyed here. I apologize for not mentioning that and I really hope nobody turned their airbox into swiss cheese!
Your second point is also very true. This mod will make your intake much noisier as evident in my subsequent episodes.
With that said, my choice of the number and size of holes were entirely for 1) aesthetic - this is entirely a personal and subjective opinion of taste about symmetry, odd/even number of holes, etc. (yes unfortunately I am cursed with that sort of pet peeves) and 2) 13/32 drill was the first one I grabbed out of the raffle/tool bag, so 13/32 it is.
I figured if I were going to upgrade piston and carbs in the future, should it ever happen, I wouldn't have to drill the airbox again.
Well... you could always paint it yellow for a quirky mod!!! LOL!
Maybe my next video should be on how to paint your airbox yellow?
know any good videos on this process?
any idea about where the ideal position of the extra 3 holes would be?
The guy I got my scoot from ran it with the tube to the filter box, mobox or filter, and wondered why it stopped running, it didn't have enough compression to start! The air was coming from about center of the rear wheel! Where all the dust is kicked up! Between that and running it with no exhaust! It was in sad shape, I didn't bother trying to fix it, I just replaced the top end, with a BBK! And about to go to a 52.4mm bore, and big valve head, and cam, I also have a intake, and 24mm carb, and a free flow exhaust, after the gear swap, and slider weight tuning, with the NCY rear sheave and clutch springs, I'm going straight to the 2k rpm springs, and Kevlar belt, the greatly improved head, and about 11:1 compression, and larger flow capabilities, it should make a lot more power! I'm hoping for about 15hp, from 86cc, at 10k RPM, if you want to go faster, the first thing should be a big bore kit, and gears! With a carb and exhaust, then tune the variator! And may as well do a cam and spring upgrade while it's apart, atleast a 20mm cv carb, under 80cc, or up to 20mm slide carb, and 24mm CV carb, the modified stock air box is a great idea, and over 80cc a minimum of 24mm CV carb, and upward of 26mm, with upgrade head, with larger valves of course, a stock head, no need to go over 20mm, a 24mm carb isn't going to help much on a stock head, maybe if it's ported, and the valves are unshrouded, if the valves are like my stock head, valves were, it would actually flow better with the valves chucked up and ground down about 1mm or do, they seated on the smallest part of the valve, putting a lot of valve in the way of the flow, and the machined Ridge from the seat being installed, shrouds the valve a good bit, improvement of the low lift flow, 80% of the flow is in the low lift portion of the valve opening and closing ramp, it's only fully open for a fraction of a second, but either opening or closing for a couple fractions, so improvement by removing obstacles to the flow, can improve power through out the power curve, possibly flattening out the curve by improvement at low rpm and high rpm power, slot of this can be done without cost, at home, but even a stock engine can use a jet change, going up 1-2 sizes, and adjust the needle to fine tune, if it does not want to even run properly with the needle in the lowest setting, the jet needs to be 1-2 jets larger, then set the needle about mid way, I'd test it out with the jet with the needle adjustment first, if the engine doesn't run with it lowered fully, go to a larger jet, it should run much better even stock with a slight jet change, but the spark plug will tell the truth, always check the plugs, it shouldn't look new, and it shouldn't look black a slight tan color of the insulator and the carb is about as close as it's going to get!
Nice read and great job. The spark plug is great way for crude tuning, but once it gets close to perfect tune you'll have to tune it with better equipments.
Thanks man.:D
You're very welcome my friend!
In the Nederlands we let those drive 160kmh with 28hp that’s fast 😂😂
really wish to visit the scooter scene in nederlands! I was there once but didn't see many scooters on the street unfortunately.
@@FIFTYmil u never will haha.dutch speed laws...
I found fking SPONGE from my 125cc airbox
Yes the foam element is the filter.
Running a 2 stroke lean has nothing to do with your oil .. it's the lack of gas .. which will cause your scooter to run hot. And it will melt a whole in your piston. Don't just guess on things. You could destroy someone else's scooter by giving them bad advice. You could have made them same video but just made it as a looking for advice video and had people give you advice. And then you could have made a couple follow up videos. ⁷ if anyone needs any advice on upgrades or repairs message me. I will give you some advice or I will let youkl know who to talk to. I understand how hard we all work for out money.
Lol i Have a 130 cc Mio M3 but Great Vid!
Thanks!
Believe me it will make it there France I have done it and I got videos to show it
So I cant just drill 4 holes in the cover and see a speed increase? What's the other stuff I have to do that u didn't show?
Thks man, from Brasil!
Greetings from Canada!
Man. You have a air/fules screw mixture. You don t need to rejet. Just give it more gas from the screw.
The screw adjustment is only effective for Idle/low rpm.
@MikeyMike is correct, the air/fuel mix screw is largely responsible for idle tuning
@@FIFTYmil You have 2 screws. One for idle mixture and one for riding mixture.
@@george-ef2xx Not for this carburetor there is no such screw for "riding mixture"
Do i need to drill holes, if i have mallosi air filter? Thanks
It's entirely up to you- drilling holes provide a more direct path for which the air can flow into the engine. If you're not happy with the results you can always cover the holes back up making this modification quite versatile. The malossi red air filter on the other hand provides less filtration than the stock one. When you're using race filters like those, strict maintenance guidelines must be followed or you will risk contaminants getting into the engine
you're saying air box but is it the same as air filter box?
Yes, air box would be equivalent to air filter box.
Thanks for all the videos bro. I have a 2014 ssr rowdy. I’d like to start some mods. What do u recommend I should start with?
Danny Castillon assuming no factory restrictions present, I would find out your engine’s reported (or dynoed) peak horsepower rpm, and then spend 6-10$ on variator weights to tune the transmission to operate at peak power
Big bore kit!!!!
Not necessarily. Your not running a supercharger which forces air in then you need more fuel. These engines can run without a filter. They will not suck in more air than they need. This is why the carb has the flaps that open to allow air in. Run with a pod filter screw the box all together.
You are incorrect in assuming that only a supercharger will require more fuel. The air flow is restricted by the airbox baffles which are in place to muffle noises. Providing a more direct path will create more noise but also improve airflow. A pod filter is largely unprotected from the weather and elements and therefore not a practical suggestion for scooters that commute to work daily.
@@FIFTYmil FIFTYmil Not sure what you mean by your statement but any Supercharger or turbo engine will need more fuel than a non supercharger or turbo engine will. No way around it. Not sure what your back ground is but I have 20 years experience with all types of engines. Racing, commercial, mitlitary civilian etc. Yes you can run a pod air filter in the rain if you do it right. Not going to get into that but its been done on many applications. You can run a cold air instake also with a ram air if you do it right. How do you think car that come from the factory like the Trans am ram air is built? Rain doesn't mean nothing unless you are not creative.
@@csb772 My statement was in response to yours. Your first sentence immediately stated that I am not running a supercharger and therefore does not need more fuel. I am indicating that my modification provided a more direct path of intake which increased the amount of air going into the combustion chamber. As such, I had to increase fueling and thereby created more power.
The fact that you "can" run a pod filter in the rain does not say anything about practicality and it certainly doesn't mean you should either. You "can" run an engine without a filter but clearly all manufacturers adopted the airbox and filters on all of today's vehicles for obvious reasons. Therefore I will not discuss further on that point.
You can even use rubber GUSSETS to make the holes smaller OR plugs instead of tape XD IM SO EXCITED TO MOD MY SCOTER!!!!
Yes!!! The only issue with plugs is, when installed into the airbox, it might act as a restriction for the stock airbox and create turbulence. Tape in contrast provides a flat surface thats more or less like the stock airbox before it was drilled.
I think I would leave the baffle in place so that when I drilled the holes it’s will always be boast taking on air from the holes what do you think?
That's not a bad idea - reducing turbulence if any caused by air entering through the baffle route!
Does anybody know how to make an emmo monster s 72v 84v faster than 50
Would this work for the Scooters that are newer like 2019 scooters that have the air box/filer under the seat and is more enclosed unlike yours that is on the side of the bike there?
In theory, yes. This video illustrates that most airbox are built with chambers to reduce intake noise. Removing these chambers or providing a direct intake path would increase airflow at the cost of more noise.
Hey there, nice vid! I have a question for You. The scoot i own is 2013 Yamaha Neos with 49cc engine. Everything is stock, just a small transmission mod (lighter weights) and a sports exhaust. I really hate it when accelerating. I mean it's really slow. When it is cold it goes like a rocket! But when it heats up... Such a pain. Tried carb adjusting- didn't help. I consider of changing the main spring to a red one in the clutch so this may help. Pretty sure the belt is done too. The top speed i can get to is 34 mph. The scooter has a 2T engine and I don' t think that this is all it can do..
So maybe You know what could be the problem that when it is cold its ok and when it heats up becomes a real head ache?
A 2T 49cc should perform better than 34mph for sure. You observed that it performs very well but once the engine warms up, it goes very slow. That's indicative of your fuel/air mixture being too lean. If you richen up the carb by first tuning the idle mix, followed by need clip position adjustment (if available), and then increasing your main jet your should preserve the performance you desire while running cold.
Thank You :)
You're welcome!
Should have used black duct tape but good idea to make a quick change to air flow.
Yep black duct tape would look awesome!
Kristopher Carter use hello Kitty stickers for +25hp
Hi so i have aprilia sr50ditchet and its syringe engine so how i can get more power cuz i wanna do some wheelies. Ps im from finland
Same engine as this one?
Nice Job!
Thanks!
So don't drill the holes if my 50cc scooter is stock??
Why you never try that after doing this? . Let us see the motor on and how it works before and after.
Isa Ibrahimi hey Isa, before is episode 9 and after is episode 11,12 and 13! All on my channel. Hope that helps
Thanks for this great vid...I have a new '16 Vespa Primavera 150. It's fuel-injected and I've installed the Milossi exhaust system and the red air filter element. It improved my top end by about 6mph (from 66 to 72). I just did the Variator mod and installed lighter sliders to replace the rollers and that made a BIG difference in power but reduced my top end by 2-3mph; now maxing out at 70mph. I'm a believer in better intake systems feeding more air to help maximize the combustion efficiency. What do you think about doing your mod to my airbox? I ask because it's a pain to remove the airbox on this bike... ;-) I know...no pain, no gain.
Lighter sliders, if they gave you better acceleration, shouldn't reduce your top speed. What RPM were you at previously at 72mph and what RPM are you now at 70mph? I believe the lighter rollers may be slamming you into the rev limiter and holding you back.
The airbox mod should work but two things to consider: 1) If you exceed the flow rate of your fuel injectors, you will be starving the engine of fuel and any additional airflow on top would equate to more power. Fortunately you can always tape the holes back up and perfect it to match your max injector flow rate. 2) The malossi filter element already filtrates less than the stock filter and the airbox mod would subject the engine to more direct (and often dirty air). Strict maintenance guidelines must be followed to ensure as little contaminants getting into the engine as possible.
Thanks! I don't have a tach hooked up yet so I don't know the RPMs...when you say slamming to the rev limiter, how and with what does the factory set that up? Can I override it? I'll do your airbox mod next rainy day! Cheers!
Often found on 4-strokes the factory ECU governs at what RPM to cut back the engine, and thus forming the rev limiter. Certainly a lot of aftermarket CDI's can and will override this because peak horsepower can be found beyond this limit. One way to do this is to fool the factory ECU into thinking that the RPM is not exceeding the limit. I installed a NCY CDI into my 4-stroke Honda Ruckus and I ride it at 9900RPM.
Unfortunately, I don't have a tach so I can't tell your the RPMs. I DO have the add-on tach that clips on to the spark plug wire but I can't open up that door yet until after warranty period. I was warned by the dealer. However, opening up the clutch/variator cover was OK. Go figure...
That's hilarious. Add-on tachs are non-invasive and tachs like the one I use (episode 0) virtually just wraps around the splug plug wire and it can already tell you the RPM. No wiring, no soldering, no plugs. Just wrap a simple wire around the spark plug wire and you're good to go.
I'd be impressed how they would find out if you have ever installed a tach to your bike.
I sort of did something similar and then the throttle was malfunctioning so i had to fix what I did.What do I have to do after the holes?You didn't explain it in the video.
Watch episode 11.
What is the best carburetor for 2t scooter ?
Nice job. ..
thanks!
Looking good! ; from New Zealand
Thank you! Greetings from Canada
does this mess up the scooter? cause I want to try it but I really don’t want problems with my scooter
It certainly increase the risk of damaging your scooter. I would best advise to leave it as original if you are worried.
Will this work on a 150cc 4 stroke? I wanted to add a k&n but there is a bunch of hoses and I don't want to remove my air box if I don't have to incase I ride to work
And it rains
Yes but it depends on your airbox. The effectiveness depends on how restrictive your airbox is and the path of travel for the air. Create unnecessary turbulence and your airbox will flow even worse than before. The good thing about this mod is it is reversible. If you're unhappy with the results, plug the holes back up!
What do I drill on the airbox?😒
How do I rejet. Are you just saying ajuset fuel mixture? Thx
Check out the next episode on how I rejet the carburetor
How to get those USD forks, I just got a aprilia sr150 :P
Good question. I'll trade you my USD forks for your 150cc engine ;)
But to answer your question I probably think ebay usa would be your best bet.
heyi did this free mod but my moped start like when i riding it i feel like my moped is struggling and it jerking when i get into 10above full throttle please help thank you
You may need to increase the size of the jet to provide more fuel and produce more power.
Hey I have a kymco k pipe 125, what should I start out with?
Follow episode 0 of this video it should give you a good guide on how to make your scooter more fun and more responsive without using much money.
i just did this pod filter mod on my 1999 v100 address, now do i need to tune the carb as the engine bogs out mid range> cheers
Engine bogging out may suggest a need for carb tune!
by carb tune could i just get the next size jet? it just seems a bit sluggish for a 100cc
Jason, if it's only a mid range issue I would consider just adjusting the idle mix (check out my other video on that) but are you sure your bike is performing fine at WOT? (wide open throttle). Typically with a pod filter I see both a idle mix adjustment, needle clip enrichening (if available), and stepping up the main jet. Pod filters are one of the more intensive modifications for the engine compared to something like a roller weight change.
i saw a pic with a extention for the wheel it looked sick in my moms country they have lots of these
Good to know.
FIFTYmil can you do a video on changeing exaust looking into the extention stuff and how to take off and put on pannels
Yup I'll try my best to do more videos on that.
FIFTYmil thx
Use some Motocross Air Filter Oil on that foam and no dust will enter ...
Using yamahlube filter oil already.
A common misconception is that filtration is either 0% (no filtration) or 100% (perfect filtration) when in reality the foam filter's performance is a spectrum depending on variables like how much oil you used, how dusty your riding condition is, how direct air is being fed to the filter, etc.
perfectly right. I meant applying some filter spray on the surface, followed by a soft massage to penetrate the top layer of the foam, forming a thin, but yet homogeneous pelicule of fine oil catching any potential harmful city dust. Drowning your foamy is not a solution!!! :-) by the way I use Putoline
Yes - too much oil would in fact gum up your carburetor and can also decrease performance.
Why does my scooter spit flames as you can see in my newest video around the 1minute mark?
-Näätä
Most of the time exhaust spitting flames can be associated to a overly rich condition. This does not mean it's bad as many tuners like to err on the richer side for better engine longevity at the cost of poorer fuel mileage.
Pardon my poor engrish :)
***** Randal got exposed for lack of subject knowledge. Pick on something else to criticize about. Now I understand how you ruined a 50cc and then went to a 80 and then a 150 lol.
***** Well it' goes 71kmh which is like 45mph and before it went 35-37mph I weight like 169lbs.
TL;DR Yes
***** BraapBraapWheelie It is hard to tell what is the cause of the backfiring based on just the information you have provided. As Randal mentioned, engine detonation could be one of the many scenarios - but not the only one. What size engine do you have? Is your engine carbureted or fuel injected? Does the backfiring happen after you shutoff the throttle abruptly, while accelerating, or in other situations? What was the last change you did to the motorcycle you noticed the backfiring?
Based on the improvements you found, regardless, I don't think you will have "blown up valves, engine, or pipes that will blow apart" lol. That seems like a bit of a over-generalized paranoia coming from someone who ruined multiple bikes already, doesn't it? ;)
hi bro
i have got vespa 150cc and i want my exhaust sounds loud.
if i install hp air filter ... does it will affect the engine?
Yes it will
what should i do? for the good sound
Changing the exhaust and the intake will definitely change the sound of the engine and the level of loudness.
changing exhaust is illegal in our country there is any other way?
change the intake will achieve a similar result! But not as noisy
is there a video of you adjusting the camshaft?, i always alwaaays wanted to clean the head, valves and piston.
but i dont know how tf should i do and what tools do i need, i watch them videos about how to adjust camshaft and valves but most of them are not straight to point.
Sorry I didn't record a video of me adjusting the valve gaps on my 4-stroke :( I'll try to do one the next time it's in for maintenance!
Okay, you'll be my recommendation for adjusting those stuffs man.
Don Dito what bike do you ride?
encrypted-tbn3.gstatic.com/images?q=tbn:ANd9GcRBkW6fRjsuurU3Xoxq2WwTRYdNPyLGzLAuNdsxr0ekwNHCA_Tu4a3WjgGA
Thats my sucker 😂
Put in dishwasher
How do I tune a 50cc Peugeot vclic 2012 ? 4 stroke
While I do not have experience with the bike, the same theory covered in all the following episodes apply. Feel free to ask me questions if you come across any obstacles.
what bike is that, I want one when I'm 16 but I dunno what its callef
Ronnie Mitchell piaggio typhoon
1:00 mark - 2:00
You said Pod Filter?
Can’t ride in rain 🌧 ??
More affected by temperature change
Yes definitely a pod filter exposes the carburetor to more of the weather. Not advisable to ride in rain
HI i have a problem i own a peugiot vivacity sportline and the moped is great but i wont go over 60kmph it doesnt have an electronick restriction or on the variator just took the restriction of the exaust, changed the cluch but it has the same cluch spring but it still wont go over 60kmph .PLease give me some advice on what to do?? thanx
It won't go over 60kmh? not even 1km/h? If that is the case it seems to be limited by the company and not because it doesn't have enough power...
FIFTYmil it does but when i find a veary big downhill but when it does it makes a weird saund and its like te motor isnt doing anythin sorry fore the spelling love from Boznia and Hervegovina. thanx
I would suggest watching episode 0 all the way to the end on my channel and do the following:
1) Tachometer
2) Determine your current RPM and identify your engine's peak horsepower RPM
3) Complete any modifications you would like to do to increase engine horsepower
4) Determine the new RPM and how close it is to your peak engine horsepower RPM
5) Tune the roller weights to target your peak engine horsepower RPM.
After that you should have a much faster scooter!
Thank you wery much
How do I deristrict my Piaggo zip 4 stroke and it’s a 2018 version
I am not familiar with that model, sorry.
Take off the air box and there will be a metal plate inside the carb take that out and re jet your carb
Hey bud, i tired this on my formula 50cc. It's a 2017 scooter. But all i really got was a little extra noise.. barley noticeable lol. As for the power? Took it for a spin, but didn't really notice any increase? I haven't retuned the jets tho.
8drifit I had to rejet after this mod. More air, more fuel, more power. Adding more air without more fuel would result in the same or less power than original setting
Oh okay bud. I'll get the thing rejeted then 😅
FIFTYmil
Do you think the power will be noticeable after the rejet?
8drifit check out my other episodes for the before and after. Cheers
I am from Edmonton as well!
Awesome. We need a scooter drag race!!!!
FIFTYmil I just have a stock Yamaha BWS 50. 🙁
Even better we can show the viewers if the modifications, if any, make a significant difference for two virtually similar engines/carburetor
FIFTYmil
That could be cool. .
FIFTYmil how do we make this happen?
take out the inlet pipe,install malossi filter (not pod) and no need to drill.i shouldnt recommend this to anyone.wasted plastic.u can even use runner big type airbox.
Two completely different things. Using a drop in malossi filter would not be the same as drilling for this particular type of airbox. Drilling provides a much more direct intake path compared to the baffled pathway original.
did you take the pipe out of the airbox ?
Which pipe?
where do you find those colored engine cases or belt case whatever they call it
Stock factory belt cover of a 2005 Piaggio Typhoon 50cc or NRG Typhoon. They should be the same for most Hi-Per2 engines including Vespa, Aprilia, etc.
lol you got a fancy bike i have a vip 50cc upgraded to 82cc
xViperCodes | C# - VB - HTML thanks viper. Eventually I will look into increasing displacement but I actually want to import a piaggio 125cc engine and motor swap!!!
+FIFTYmil me too can you fit a 125 engine on a 50cc body???
***** I haven't really looked into the details yet but it may require a little bit of welding. If not that would be a bonus! For my 150cc swap into the 50cc Ruckus that required extensive modifications
Will this mod work on gilera runner 50?
yes it should work.
Gateway Toyota add in your paper. Are you in Portland, Oregon?
No. Alberta Canada
i just put 3 hole like that and 3 suppers small hole but i end up putting tape on3 big hole
good job
Will this mod work on a Yamaha smax 155 (fuel injection)?
Cal-Metal Desu yes but with fuel injection you are limited by the flow rate of the injectors. Providing more air than their flow rate will result in a lean condition. The good thing about this mod is if that problem arises, you can just tape the hole up and tune on the go.
With fuel injection it's best to leave the airbox and induction well alone unless you have access to a rolling road dyno and can re-map your ECU. Just let the mass air and air temperature sensors compensate for exhaust changes untill you need to go further and are prepared to spend a lot of money for what is, not a lot of gain!
How do I derestrict a Longjia Raptor??
What is restricted on it right now?
I’m not sure but I would guess the exhaust and cdi not sure about anything else
@@J9Jord Sorry I'm not familiar with that, but let me know if you figure out whether there are any restrictors and I'll help you out.
Is there any very bad site effects of this ?
Yes - if done incorrectly it could lead to engine seizure in the worst case scenario.
Will this work for a Tao Tao 50cc?
yes the same theory applies for all engines
I need help I'm trying to find an exhaust for my 2018 Lance Cabo 50 anybody out there that can help
How can I help?
Hey bro where can I get the pipe??
ruclips.net/video/PZi9O7azpxQ/видео.html here?
Have you tried a DNA filter?
No, is it better?
will this work on pgo pmx 50?
cheers
Drilling holes into your airbox will work for essentially all bikes in theory. Knowing where to drill it is essential because if you drill holes further downstream of the filter, then the filter can not do its job filtering the air.
It works on all bikes that have easy accesable air box
Don't do this, just remove the snorkel
Not advisable to remove snorkel for CV carbs and/or all weather conditions riding
@@FIFTYmil it's better to remove the snorkel rather then drilling holes into your aitbox tho, removing the snorkel doesn't effect its use in bad weather conditions, if anything drilling holes into the side of your airbox had a higher chance of letting water in. Your method works but it doesn't make sense when you can just remove the snorkel and get the same amount of airflow
@@2SmokeyGuru Good point about the leak in. If a scooter is parked in a heavy down pour the rain will definitely get into the airbox. However, more water would make their way into the engine with an open filter while riding because the carb is directly facing the rear wheel where the water is being kicked up and splashed around. With holes in the airbox you can easily tape the holes up and it would perform as well as stock against the weather.
I think you've misunderstood what I mean lol I ment taking the snorkel out of the original air box lol, either way works lol
what happens if I dont re jet the bike? good vid
Marau PT it is all about the correct fuel mixture. Sometimes you don't need to rejet if the mod you make moves it closer to optimal mixture. If you're off the optimum you produce less power. On a 2 stroke bike improper mixture results in insufficient lubrication leading to overheating and piston seizure or detonation.
and if it was a 4 stroke? Sorry, I do not know much about motorcycles
Marau PT 4-stroke is a bit more forgiving the engine would run hotter and lack power but over time it's bad for the engine as well
ohh ok thanks for thelp dude
Marau PT no problem! This is why this mod is so versatile when you can cover up the holes to tune on the fly
Im afraid i am going to buy something that doesnt fit...or fall off...
I strong suggest doing the proper research before purchasing to both save money and ensure fitment/safety
Im doing the same thing here in Denmark you still got it?
Martin Larsen got what?
The bike..
Martin Larsen still here!
Okay cool im trying to get the jetting right, with No holes in the Box yet 😄
Did you end up with the 82 mj?
dont do it, a standard bike need back pressure to function right. if you drill holes in the airbox it will actually decrease performance.
Srsly? Before you make that claim, please define back pressure in the 2 stroke vs 4 stroke context and clearly explain how back pressure “will decrease performance”.
FIFTYmil pleas buy yamaha aerox 2013 version tune that
Pewkele slap a 70cc malossi mhr 21mm Dellorto karb and a 14:41 gearing. It Will rip ur ass out
I wish they sold the aerox here in canada!
that doesnt give you more power... unless the airflow thru the snorkel is better
Airflow through the snorkel has increased and more power was found as shown in the following episodes...
FIFTYmil yeah but i was talking about the air filter, the snorkel has increased air flow because its more smooth thru the corners and it has less corners. sure it will gain hp but not because of the air filter
offroad idiot That didn't make any sense at all. It gained horsepower because of what I did to the airbox cover. The air filter was left untouched.
FIFTYmil oh im sorry, didnt watch the whole video lol, but i wanted to say was that a simple filter will do a good job as well but the airbox is restrictive but you fixed that in the way you could for the less amount of money :)
A less restrictive filter will improve airflow at the cost of less filtration, regardless of airbox design. A more direct approach shown here is to bypass the baffles and pathways integrated into the airbox design. Agreeably they are there in the first place to reduce noise, emissions, and provide better all-weather performance so you are indeed giving some of that up for better performance under ideal conditions/conditions I ride my bike in. That is the cost of modification tuning
Did you also getting the scooter for free? Because you dont have money?
Yeah all of my scooters including insurance and gas money are now basically free (or have paid themselves off) with a total view count of more than 2 million views. Thanks!
Can you help me out I got a 2018 gator scooter 49cc what can I do to make it faster 4 strock
what RPM do you see accelerating?
i have 4 stroke 50cc
Cool.
do I need to rejet the carb after doing this ?
If you leave all the holes covered/plugged, in theory it should be the same as original and no jetting is required. When you increase the airflow by opening up the holes, then you must rejet in order for the engine to produce more power.
HI BRO.
am from india and own an APRILIA too, mine scooter is APRILIA SR 150, with 155 cc engine max. torque 10.4bhp @6750rpm max. speed 120kmh. can you please suggest me helpful mods for practicality and cosmetic and technology ,not performance. and is it OK if I colour the silver cvt box as BLACK.
love from India 😊
Yes it is absolutely ok to paint the CVT case black if you know how to do it correctly. One of my favorite mods to the scooter is a side kickstand, lower handlebars, and a cell phone holder. Check out the holder at this affiliate link: goo.gl/YRppLv
FIFTYmil HI BRO. i did that was a n awesome mount. can please explain me that lower handle bar. and thnx. for your feedback, you are amazing are scooters.
A lower handlebar would look like this: scontent-sea1-1.xx.fbcdn.net/v/t31.0-8/14372069_772838519524291_483188084711937082_o.jpg?oh=317773086b9c8a2fd595874e51f76d28&oe=5963908C
+THE KILLA - Had an Iridium spark plug, gap it to 0.9/1mm.
Keep the scooter clean and well maintained. Tires pressure checked.
Lube all the key locks/hinges (WD40 or equivalent).
Maintain the air filter immaculate clean. Had a good fuel filter.
Had a couple of hooks for cargo load, carry a few bungee cords,just in case.
Had some carpet in the under seat compartment... Enjoy. ;-)
Why using an anoying background music?
Mute the music in that case.
Exactly don't ask stupid questions, he's helping us increase speed via filter mods. Don't waitse his time with your bullshit questions about music
wtf??
Bernardo Andriani wtf?
bla bla bla ffs get on with it
Cool story bro.
I've got a better mod for you.......buy a real bike.
I've had quite a few people tell me that. What bike do you ride?
FIFTYmil kdx200
Marcel Celliers And you consider that a real bike?
FIFTYmil lol...... Uhm... Yes. But coming from you, a scooter rider your opinion is irrelevant.
Marcel Celliers So based on your analogy, since I own two superbikes, I ought to say - "Marcel, please buy a real bike and stop playing around with your little thing that you call a motorcycle"