49cc / 50cc 2 Stroke Motorized Bike
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- Опубликовано: 11 авг 2021
- Inspecting and testing a 49cc / 50cc 2 stroke motorized bike kit.
If you are buying one of these smaller kits to be '100% legal', there is no way to prove the cc rating without pulling the head.
This is not legal advise, do your own research and make your own decision.
At the end of the day you, and you alone are responsible for dealing with the consequences.
Performance and Tuning info:
www.dragonfly75.com/motorbike/
Questions about porting? Ask here
/ @2strokecarbtuningport...
Kit used in this video (non painted):
www.amazon.com/dp/B08543TV25?...
Aluminum Cutting Bits:
www.amazon.com/gp/product/B07...
3mm x 10mm Woodruff Keys:
www.amazon.com/gp/product/B07...
Clutch Fix:
• Motorized Bike Clutch ...
We upload motorized bike videos every week (sometimes more)!
FAQs:
Oil: 32:1, semi synthetic, random brands.
Gas: 87oct
Spark Plug: NGK B8HS (yd-100), NGK B6HS (pk80)
Parts: I buy mostly from Amazon.
Favorite Motor: Zeda (Firestorm) Triple 40
Favorite Carburetor: NT Speed
Favorite Bike For A Motor: I don't have one yet.
For motorized bike help, join the server / discord 
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My first kit after seeing you channel was a legal 49cc kit. It just didn't have any power even after replacing most things on it. I almost threw in the towel but tried a 80cc kit and there is no comparison. It's funny how a 50cc moped or those Chinese motorcycles with 50cc engines can go much faster than a 49cc motorized bike kit. Seeing a real world conversion of one of these to the larger piston and jug might be cool one day.
My older bike in 2012 was a 49cc smaller engines more bolts but I did had an upgraded carburetor an exhaust header just a aluminum plate that looks cool and maybe the baffle on the exhaust removed CNC hub adapter and I kind of forgot what else but that bike used to haul butt it was one of my fastest bikes it hit 48 miles an hour like no problem it was a true 49cc
That cvt works wonders
Has to do with the cvt
My first build was a 49 four stroke great power no clutch lever only down side is it's heavy as fuck. I already threw it on an older cruiser so it was all around heavy. Two two stroke builds later I'm on my third one . 80/66 that is
The way the engine powers the bike is all the difference the variator and final drive gearing turns high Rpms through a reduction that give torque. The motorized bikes use crappy gear reduction box low torque transfer. Without a running start at a steep hill you'll have to pedal to help the bike get going.
now I know why some of my kits have that resistance when cranking it by hand
hi la hover i wanted to share my experience with 49cc kits my first bike had one my top speed was 23mph after break in,my second bike was a raw 49cc it went 29mph put over 7,800 miles on it and it still ran i just retired it,my last one was a old 49cc early 2000s kit it went 28 no problem i feel like its really hit or miss with these but i will say all the older 49cc motors ive had went around 28mph
Thanks, Hit and miss for sure! Ride safe
I have a 80 style 3 hp briggs horizontal motor I wanna mount on a bike. lol
It’s definitely possible, give it a go my man!
Hi , i made a bike with a 2.3 liter craftsman chainsaw body with a friction set up. It does about 20 mph with a home made exhaust and the tip is from a lawn mower. It runs ok and the face of people seen the chainsaw is worth millions !!! Lol. Now im doing another one using the gears to pick up some speed and make it more quiet with a 26.2 4 stroker. Thanks for the info .👍
Brilliant video. So informative and no bullshit at all. Love these little things, so small and fun to tinker with.
One thing I imagine would really wake up one of these little 49cc engines is a case reed conversion. I'm actually planning on testing that with a spare bottom end I have that uses a beefy GT5 crank with thicker than normal flywheels (38mm stroke). With the intake completely filled and sealed and a 3rd transfer cut, I'll bet that thing gains a lot of bottom end. Couple that with a decent pipe and maybe add just enough exhaust duration to get it to pull up to 8000rpm, and that would be one smooth running little ripper!
Love seeing the GT5 DIY builds! Good luck.
a year later, and I got myself my 1st kit. 1st thing I did yesterday was to completely disassemble it, and with the knowledge of this community identified many major flaws that I am now fixing. One of the bearings was seated so tightly it wasnt moving anymore - I couldnt move it with a finger - only when the entire clutch axle was in and I could grab the clutch outer diameter to get more leverage. yikes
next thing was that magneto coil screws were too long - 3 of them were so long that the entire thing was movable by hand even though screwes were bottomed out.
3rd thing was a shaft seal that was totally mangled due to crooked casting - one side of it was like 3mm taller, slanted towards other side, and the bearing inside had its shield pushed in, contacting the bearing balls. So 2 out of 4 bearings had to be fixed.
a crap ton of metal shavings fell out from under the bevel gear - it was shortened by a 5 year old or something, the burr is like half a millimeter deep.
but there werent any lips on the head ports, so thats nice
anyway, thx for your videos, I can fix the motor even before I put it on the bike, its a luxury.
loving the frequent uploads
Cant wait till you re-seat the the crank bearings. As you know that will allow one less case gasket which helps crank crankcase pressure a grip. Ur top dog brother
I have the firestorm zeda80(triple 40) it came with that newer style carb and I actually really like mine.
I purchased a BBR 48cc. I did loose some power on hills, but the engine runs amazingly smooth. Is sounds good through all throttle positions. I didn't port match or do a thorough inspection inside. I built it as a starter bike for a young adult. Maybe I just got lucky and got a good one. I will walk him through everything after riding it a little more.
I am getting a 50cc motor for legality but also want to test it against a YD100
@@Sachitanandaatleast in the states the manual clutch makes them illegal but no one prosecutes or even files charges
Uh i am planning on buying the same can you please tell me for how much did you buy and its top speed😊
Nice video! Been wondering about these 49cc motors.
I have a 49cc kit it runs fairly on the better side and actually pretty peppy I’m looking into building it up maybe with a mxs head on it look forward to posting some videos on my bike
I got a couple YD100 Motors from MaxInd. in Florida, and everything on his motors that required grease had it, both Motors were basically ready to go O.O.B., even the innards on the Clutch side were greased up...he does a really nice job on his, haven't had any issues with the one I have on the Gasbike Frame from CDH...nice, tight little motor so far...
Thanks for sharing
I’ve got a bunch of highly modified intake manifolds & carburetors ... jb water weld the velocity stack to the carburetor & fill the thin spots of the carburetor on the outside then port the carburetor to the shape of the velocity stack.. I think the intake manifold bored as big as it can go up top with dimples Works the best .. when I port stuff I like to do it in a bin with warm water .harbor freight flex shaft rotary tool seems pretty quality & works well for rough fast cutting but the dremmel goes faster for polishing & fits in tighter spots..
My bikes been sitting with smoked tires
I’ve been hot Roding a bt 200x mini bike & a 70s cat duster chopper 212. & since I live near paradise California I feel my purpose is to restore the biodiversity of the land by digging swales and building ponds.
I just learned a valuable lesson on why it needs a I ring. I bought a 50 cc china doll ebay engine for my birthday the to build my first bike and put it all together ran it three times. And on the second tank of gas I took a 3 mile ride and had to pedal back after bang big ass hole in the piston and full of debris now oh well time. To upgrade
Got a 50cc kit for my kids bike. She has ridden it quite a bit so it's good and broke in. It does 26 with a 180lb rider. It also has more than enough power to haul my buddy at over 200 lbs over a pretty steep viaduct. Not saying they are all like that but it's possible.
That looks like it has a decent paint job, the first painted one I bought way back when from Kings Motorbikes looked like it had been dipped in a paint bucket. All that paint is a real pain in the rear too.
Oh lol. Ouch...
Well done, i bought a black 50cc kit and the paint it like a thick enamal, and does chip and can get in places you dont want, like the spark plug hole, for one. lol Mine is working well and i got the new version of the carbs as well, but i put the speed carb on my motor. Still at anything over 1/2 throttle is grols or gurgles what ever you want to call it. Four stroking but not sure if that is what it is. I think i need to jet the carb. Tho this carb worked great on my 80cc. I had to raise the clip on the neddle valve all the way to the top, to make it stop four stroking even at low speeds, which is odd again. lol Anyhow thanks man, off to your next vid.
thanks for the tip on the rings
I just recently had my first motorized bike stolen off of me. I had a heavy duty steel cable lock but somebody came and used steel bolt cutters to it. They got my pk80 on a Wasaga vagabond frame with the 6cc compression head, a high performance carburetor, boost bottle and an expansion exhaust. It's almost heartbreaking because I got really good at building the engines but I keep having problems with chain alignment. I posted on Facebook for the crime watch group in my area and a few people have seen somebody riding around on one like it but painted it black now it's this pisses me off that he somehow got the chain to work when he stole it the chain wasn't even on the bike I barely got to ride the thing I snapped two chains on it. I don't know if it was because it was the engine and frame alignment, I bought from somebody pre-built but he knew what he was doing. I don't want to give up on this Hobby and my next bike I wanted to work on building a yd 100. I'm just not sure what the best yd 100 is to get?. Is it the Zeda firestorm 100 or is it the bbr racing 100 they're the only two that I can afford right now in limited to $600 Canadian. I'm getting a hyper 26 in cruiser bike and was wondering if that's a good one too. Also a Bell u-bolt level 5 bike lock for it. I just wanted to get some advice on if the hyper cruiser frame is a good bike what would be the best yd 100 and also what kind of security measures can I use. I have a security bike lock that gives off an alarm if you try to cut it I also have one of those vibrational seatpost alarms and I got a magnetic GPS tracker. Now remember I'm Canadian so I'm limited to how I can defend myself. Police don't give a shit in my town either. I called them yesterday morning and they still haven't shown up. On top of that I've had two other people scoping up my girlfriend's e-bike that we've seen on our security camera I already got her that u bolt bike lock level 5 for e bike. Sorry to rant in such a long message it's just you know a lot about the yd100 and those engines and how to keep your bike secure and I'm just kind of venting right now and freaking out over the loss of my first bike and I know you don't know me or have any reason to care but I'd really like your advice on all this. I saw from this video how when you order a bike kit in you clearly need to take it apart and put it back together and re-grease everything to make it run properly and I want to build my next one properly that's the main reason I'm asking your advice.
Go to DMV and get the training manual for a motorcycle. Anything over 50cc is a motorcycle so you NEED a motorcycle license, a motorcycle helmet, motorbike insurance, a license plate and the serial number off the frame which is usually behind the headlight. I started with a motorcycle so know this schit. The Moped came later(as a "toy" to fucck with) It is something that gets strapped onto a Winnebago as a grocery store getter, nothing more. A YD100 is 100cc MOTORCYCLE not legal for highway because it can't got that fast and it tiny schit. It is a toy. No serious suspension so barely a DRIVEWAY rider. As for your stolen bike - go to the COP shop and ask to look at their recovered bikes.(there will be a lot of them) You need proof of ownership which means your purchase papers as the serial number is on that form. If you find your bike there then you can claim it. If it ain't there, well, you tried. Then who has it has it on the front of their motorhome or out back for the kids to play with. SOMEWHERE. Your only chance of recovery is LUCK and your proof of ownership because you got the serial numbers.(it is not something you can make up and it matches what is on the bike) You may have to STEAL it back. Or it is in a trash heap somewhere, rusting. That is life.
. "Police don't give a shit in my town either."
. They do when the bike is licensed, insured & registered with DMV. Though the only way they can find it is IF IT GETS LICENSED AGAIN then the red lights go on at DMV as a "reported" stolen bike. They have the address of the culprit and can cruise over there and seize the bike. But if he NEVER PLATES THE BIKE then you are up shitz creek.
. I know this because I got a KZ400 Kawasaki that way. They never registered it in the beginning and I did. It is now my bike. They can eat a shitburger. I don't care.
That's why I'll never leave my bikes outside under any circumstances
Hi LA Hover, just an update on my 49cc, I added 2 more base gaskets on my cylinder block, shaved off 2mm on top of the cylinder block, shaved of the cylinder head (removed the lip and flatten the surface), NT carb with a #66 jet, e-clip at the middle, 20:1 oil gas mix. runs like a charm
for my 16 birthday i paid $120 for a 50cc it went about 21 mpa and i am 200 ponds and it was fun but over time the over spray on the Moter wore it out so now a full year later im 17 and building a 80cc with no Pante on the Moter and i have bean a fan of this channel for some time now you are the reason i belt my first bike and the reason im doing it again but for trail riding
Hello, I have an old minibike and for this summer I am considering using the engine and the other parts for a bicycle and being able to convert it, it is 49cc, do you think it is worth it for me to buy an 80cc kit for 100 euros or use the engine the minibike making any changes and adapting it to the bicycle?
@@_omar_lxr5772 i am no way an expert but i woold go with the bike Moter kit its Eser
i had a black 50cc like that one and it had a good amount of power
I got one of these kits. I topped mine out at 38 mph after break in. It wont keep it long but it averages 30 to 32 mph. Idk if its a fluke but im hoping some of the info from this video will help me get that power all the time
I have a love/hate relationship with your videos. I love how informative they are but I hate that I might be missing something as I go about my build because I learn some new bit of vital info with every video! Do you have a checklist or comprehensive video where everything is condensed into one place?
this is what I need lol
I almost got one because the old chinese mtb I was going to fit it in had a weird inner angle. Thanks for the word on its power. I'm sticking with 66ccs
51cc is classed as a motorcycle. Meaning you need a helmet, a motorcycle license meaning passing the course exam, get insurance and registration if you are going to ride it on the road. Like WHY FLUCK WITH it. ? Get a 175cc Japanese motorcycle where you can do 100MPH, insurance, registration, helmet, motorcycle license(no different than a car license - meaning they test you before you get it) and then you can play with the 66cc engine. Me, I would toss it in the trash and ride! Because I don't have the patience to fluck with it...I would rather ride.
I was given a Viza cruise 33cc motor scooter.. this will be my very first small motor to own...
Great video!
Carburetor o-ring. I was wondering if it should have one.
I like this video this is like the Kit I got for my first bike
I seen how disappointined U were on inspection of the head gasket. Turned your head to side. No biggie tho. Your tops!
Cool little motor. Two Case gaskets big no no. Massive loss of crank volume.
That'd be kinda fun to dink around with tho. Just to see how much more power u can get out of it.
The whole idea was not to get additional power out of them as a Moped is not to go over 29MPH so it barely makes it in the neighborhood on the slower streets. It is not allowed on the highway at all., not much of a bush bike(lack of suspension). It is the adult community traveler in the community. Maybe to the grocery store for 1 or 2 items and no more than that. A 49cc Moped can get 200MPG
@@bunzeebear2973 what, was it Your engine that Hover was working on??
I like the 50ccs, if you figure out the compression and run a proper 2 stroke pipe it will definitely be usable, I searched around and got a 2 stroke scooter exhaust to install and the little motor finally acted like a refined small engine. They cut to many corners when they paint the motors, ordering a bare metal engine and taking care of the finish is the way to go!
Ive bought at least 10 of these 50cc kits(unpainted) for the bikes i sell. Some for as low as $75 and the most ive ever paid is $95. Ive personally had nothing but good luck with them. Start great,run great(after break-in) and all have been reliable as heck! Not as much power uphill as a 66cc or bigger but still not too bad.
Thanks for sharing
I see a lot of people on 50 cc mopeds where I live. It's cocoa beach Florida so mopeds are convivnent. I'm the minority with an electric scooter I love it plus no fuel
Smelling the mopeds was like lol you can definitely smell this thing. But it keeps getting up none the less it gets you places but the fuel is gonna cost you in the long run
@@eazysmokes3743 Cost in the long run? It's over 100 miles per gallon... Heck even the lager 66CC motors are 80MPG ruclips.net/video/uosxsA_eHdo/видео.html
Where do you get them so cheaply?
I messed around with those China Doll motors for more than a decade 49s 66-80s, even built a 55mm jug and head and running a 28mm pumper carb but the bottom end can't handle it...scrapped it all and groomed a KX 80, reliability, horse power and a real transmission...oh, did I mention HORSEPOWER? I wouldn't suggest putting it in a Walmart bike
So you also learn from Dragonfly75, good resource!
@@2strokecarbtuningportingin187 😅😅😅 regardless of software the other information seems legit
The ONLY problem I seen throughout this whole video is a small one. You still were using the stock static idler. I learned this from experience that a spring loaded one is infinitely better. I know that you'll probably say that if balance and keep tight the sprocket a static one is fine. But life/shit happens my friend and what can go wrong, will go wrong... eventually. Love your videos so far.
I bought a painted 2 stroke motor and it was such a pain in the ass I sold it and got most of my money back. I’m planning to get a 4 stroke bike engine kit for reliability and relatively easier starting
So I’m thinking about doing my first build. Honestly, my goals for the build will be to learn about small engines and successfully build something that works. I’m thinking about a Firestorm Zeda 80 because of the reviews. I’m worried that all these guys online who clearly know a lot more than me are finding manufacturing issues that I will not have the skills to identify or address.
Every motor is a lottery. Firestorm motors have been good to me. Fortunately they are about as basic as it get when talking about gas motors. Good luck on your build!
@@LAHover thanks!
I like the that old fashioned petroleum lamp by the window very much.
Found it for about $7 at Walmart in the camping section. I think they keep them stocked in most stores.
please link the next episode in the description or somewhere.
Was that new carb with the Oring a really loose fit?? i noticed on my YD100 the carb is really loose on the intake stem, i have to seal the hell outta it and really crank it tight to barely seal,, nice vid man
So far all these JRL/Bofen carbs have been a tight fit. The YD intake might have a slightly small intake OD
Good video
What is a good jet size to run on these 49 cc engines? They seem rich
Hey man so I notice these bofang carbs are coming with alot of these new kits Quality of them seems to be on point the Jets are alot larger then what NT and most stock carbs come with any chance you know the size so I can order me some thanks LA HOVER
I have not picked up a kit for them yet. but they look identical to the predator 212 jets I found on amazon... Sadly those jets only go up by 5. I can't find any that go up by 1.
Hello my dude, I have a couple issues with my new built motorized bike, when I pull the clutch the engine run very high and when come to a complete stop the cut off. I not sure if its because of the dual spark plug. please let me know what you think. Thanks.
I just got the same one and it got the Gap at the top and is it ok to run like that? And can I pute cement metal around the gaps cause I don't have the tools to fix it
Have you had an engine that lost power as it got to operating temperature, and runs hot? Mainly the hot running issue.
I have not personally. But the head can expands enough (as it reaches it's temperature limits) to break the seal between the head gasket (among other things). www.dragonfly75.com/motorbike/headtemp.html
That’s actually awesome I have a road bike bet that would move alright.
You know what I would like I need help with my 80cc it's started at once it was weak and I can't get it started again
Great video bro good information no 49cc for me lol not enough power
i wonder how that minerelli 50cc is from the smolik dude
✨👍😁✨
I think if I had to buy again I'd spend the extra money and get a 4 stroke engine. Quieter cooler running and look like they are better quality hands down.
What are 4 stroke motors like in terms of quality out of the box?
the one advantage I see in these 49cc 2 stroke kits is that they have minimal vibrations even on WOT. By the way, what oil to fuel ratio did you use?did you change the jets in the carb?
You are 💯 right 👍😁
I have both a 49cc and a 66cc. The 49cc is almost as powerful and much quieter.
You got your motor running,and headed down the highway.Were you looking for adventure...?
An what ever comes my way ;)
I would carry the receipt in other paperwork that came with the kit the same as I would a vehicle registration.
Are the BBR 49cc 2strokes good kits?
bro just get a higher cc engine like he said theres no way for a cop to actually know how many ccs the engine is
You should build a bike with dual 66's! Run two of 'em side-by-side!
I wish I was that good!
Seeing this years later, and idk about a second 66 BUT ive been kicking around ideas of a second motor.. would require fabricating a bracket for front fork if using combustion so that engine and chain druve can move independently obviously but this would cause issues in steering because if he weight. But that may be able to be mitigated with a counter weight. All that is alot. What ive been thinking would be much more feasible would be and electric motor up front. Would be lighter, require less fabrication (maybe none if hub motor) and it should give a very noticable boost to power and top end while also being a contingency if other motor dies. Just some thoughts but ifnyou get the time id love to get yojr opinion.
Do you have these problems with a 66 if not what 66 cc kit would you recommend
Do you have a recommendation on an aftermarket carburetor for these engines with an independent fuel adjustment screw?
www.dragonfly75.com/motorbike/othercarbs.html Enjoy
@@2strokecarbtuningportingin187 Promise I will grab me one some day soon ;)
This is similar to the first engine I used. I was (and still am) paranoid about being legal. But I got everything I could out of that engine. Lol I didn’t have a chain to the pedals so it did do pulls from 0 but slowly
which cop would stop you and ask for engine rating , grow up dude
Chain to the pedals as well is what makes it a MOPED and it tops out at 29MPH. Check with DMV in their motorcycle training handbook and you will find what a MOPED is and can't go any faster than info. So every cop can visually see you have a motorcycle as it is motor driven (be it electric or gasoline - it don't matter) So, you know you are not legal.
@@morrisjohnsonakamj6346any place they become DUI-mobiles,think before you speak.
I’m not joking, my first 50cc I got was fast, 30 mph flat. But one of my friends went 38. We tested with a phone GPS, and we even swapped out the cylinder to make sure it was really a 50cc, I’ve never had a slow 50cc Except from a company called panel tech, don’t buy their stuff.
Hey nice bike 😊
Instead converting to a 66cc jug there's a 60cc jug and piston available that is a direct bolt on for the 49cc and adds a little.
Good to know, thanks!
My motor is a 50cc. I have ridden it bone stock and slightly modified and as far as performance goes i personally on my own setup and use case find a poo poo pipe helps give it some more power. Its not faster but it definitely has a noticeable powerband now. I am by no means an expert butI hope this helps anybody.
how did you spray paint the frame? with the stickers or did you take the stickers off
I just took them off
Don’t you have to engage the clutch before trying to turn the motor over by hand? Not being rude or anything but I thought u had to do that when turning it over to check compression.
Do you suggest going thru the motor completely everytime with a new build?? Even when not going thru a big box store??
At least the top end. Check for junk in the ports and a backwards piston.
@@LAHover yeah ive been watching you videos on port matching/ upgrading...fyi..i got Zelda triple 40( roadrunner80) its got two spark plugs...it a will be my first build..its came the original head with one plug...anyway ur video help thx
can someone help me figure out where to get a crankshaft for the black 50cc motor? the magneto bolt stripped along with the crank for some odd reason, the threads were just laying inside
I have not used eBay in a long time, but CDH is a well known parts supplier www.ebay.com/itm/283918163222?_trkparms=amclksrc%3DITM%26aid%3D1110006%26algo%3DHOMESPLICE.SIM%26ao%3D1%26asc%3D240487%26meid%3D1328188d3ff94bc8a09585be14483380%26pid%3D100935%26rk%3D1%26rkt%3D12%26sd%3D284561418186%26itm%3D283918163222%26pmt%3D1%26noa%3D0%26pg%3D2332490%26algv%3DSimplAMLv9PairwiseUnbiasedWebCpr08MlcGreedyV3KnnRecallV1&_trksid=p2332490.c100935.m2460&amdata=cksum%3A2839181632221328188d3ff94bc8a09585be14483380%7Cenc%3AAQAHAAABEArqPmzJfws5bLJj82RQBARS3srM2ZejXM26c6AIQlxSYWTkvrN6WcrmRCFWVqIxiSMqi4CLgWl%252BXWcCNA1JKlbqd14u3%252FNWXvtaUp67orT5UmeidQmMQCsa9owwOaZWQGLPdL47KiFmOo5fjSVgt4GcM3SamT144vpXluVsB8Pm28%252F5A7C5FPTqow87J0hb4zkQY5n2XTzLUUj%252FzpP1NxAD%252BjnKy8xKQ4XL8MSLRoXP8Uls0VbbPRN84uGH5hGR7IgAcYcRpBAdyNPdb6JJLkcZHAYJXowhpU2XILs5NQINte5jFddLjz6ko%252Bafur%252BQMaz5iiQOG00PzpN42whx21MxqFQuJgg4bAad5mr98BUb%7Campid%3APL_CLK%7Cclp%3A2332490
Anyone know how to make them quiet enough that cops won't bother me? I've seen some ideas about customizing the intake and exhaust. Any help will be much appreciated. I am doing a motorized bicycle powered lawn service with custom bicycle trailer.
Can I tap and drill the holes on my 50cc ,2 stoke
How would you winterized one of these motor kit?
Reason why I am asking is because I use this as an everyday vehicle
All you do is jet/adjust the carb more rich for the cold and make sure your filter is clean from the increased road grime
@@greenbassboosts8872
Thank you
Another we'll done 🚲💨💨💨💨 video thanks 💨💨🤙👍💯
Thanks again!
@@LAHover welcome 🚲💨💨🤙👍💯
4:10 I needed to change my clutch. I saw that this pin on my motor appears off center and doesn't wiggle. It doesn't move at all. Is that indicative of a problem?
You know, that might be a good indication of a bent or un-seated pin inside the main shaft. Good question though, let us know what you find.
Are they legal where you are?
I got that same one and raised the exhaust port and got it to 44mph
My bike is not legal but here in michigan you can have it inspected for brakes lights and speed then it can be registered as a moped $30 for registration sticker.. I don't have it but I had a buddy get pulled over on my bike they let him go and I passed about 6 cops riding on the street a few days ago none did anything so I don't think they mind it
You should check out tge videos of Soviet 50cc motobicycles (they called them "Durchik) Riga 7, Riga 11, Riga 13 etc
Thanks! I'll have a look :)
@@LAHover Btw, inventor of this engine is Ukrainian engineer Filip Priboloi (1914 -- 1982). There is a video about that ruclips.net/video/jrbRMzj4nVw/видео.html
Very cool 👍😎 I checked it out
Can you explain your gas mix? Your engine had no smoke
32:1 sometimes mine smoke, sometimes mine don't.
I really want a motorized bike, yet don't have the space or time for such in-depth work to get it running smooth, which means I won't be able to have one unless I can find someone with the specific knowledge, space, and inclination to do the work for me.
Perhaps there are businesses who will do this work?
Thank you for the video, so far among the most thorough, and clear, that I have seen.
Look on Facebook marketplace or get a "phatmoto" I think they come pre assembled from Walmart. not entirely sure 😎
@doperification okay thank you, ill look around and make some calls.
I kindof want a little gas powered beast to piss of my snooty neighbor, she has an electric bike, electric car, solar panels... and loves to brag.
@@kaseygrumpykeller5867 nice, thank you!
Can I set the speed limit on a 49cc bike ? Like at 20mph ? I need it for distance not speed.
Go with a larger rear sprocket. As a bonus it will clime hills better and pull more from a dead stop.
But for max range, keep the stock sprocket, find a long flat road, use your phone's GPS speed app, get up to 20mph, hold it there for a few seconds, than mark the throttle grip, and throttle grip housing at that exact spot. Simple, but effective.
You will still have full power to get up to speed, than you can just hold the throttle steady at that spot...
I would say "just use your phone as a GPS all the time..." but that is not always practical.
Ya look kinda cool bra. Is that a drone following you?
It's a 360 camera. These things are a trip lol
@@LAHover Thats so neat! I swear I seen a bar in the shadeyy spots! Your inovative sir. Very cool.
the bike looks awesome at least
Just curious, how are you filming yourself on the bike in motion?
360 camera on a stick.
It hides the selfie stick in software.
The painted motors are a result of whatever company's particular process. We cant assume all components or assembly is done in one building or linearly fluid. Individual components produced in several different small operations and shelf time mean for them the cheapest way to make sure yoi dont recieve a solid block of rust is to seal in paint asap after casting etc. Very much being a case ofnyou get what you pay for, the cheaper price will almost always dictate the buyer essentially becomesntesponsible for finishing properly. My only gripe is that this should be expressed up front to the customer in marketing or ay least come with some paperwork or manual that explains finsihing and prep prior to assembly
When i put mine spark plug in my bike pedals very heavy
How big is the tank?
2 liters (about half a gallon).
There are 3 and 4 liter upgrades as well.
How is it for vibrations vs the 66cc kits?
My 49cc was a bit smoother throughout the entire throttle range.
As long as you are not running too rich.
@@LAHover nice! All i needed to hear to open my wallet lol my old pk80 is annoying to drive long distance any improvement from it would be better.
I've been going back and forth on what size and I'll probably go with a 49cc just because. If I want to go faster I'll jump on one of my motorcycles.
I have to stay under 50cc (because I’m 12 yo and don’t have a license) and have never done a build or anything, is there anyone who knows of a good kit or website to look at or anything? I’m doing as much research as I can but I can’t really get a concrete straight answer about any kit or website. If you know anything about the hobby please respond with some recommendations.
13:17 draw filing is for flat surfaces
Here in California we can’t even buy motorized engines on Amazon anymore I’m surprised I can still buy them too be honest with you
Meth is practically legal there but you can't buy a motorized bike kit = Leftist Logic
@@michaelbrinks8089 basically every illegal drug is legal here 😂
That's a shame, must be emissions because last time I check CA had relaxed motorized bike law.
@@LAHover oh no you’re right the authorities are cool with it I have a 100cc 2 stroke that looks like a boardtrack racer that pushes 65mph and they only stop me to ask for pictures of it most of the time or to tell me to use the bike lane even though it’s plated and rigged with road lights and blinkers also
Edit: I’m also running some heavy duty disk brakes and wheel bearings not trying to run red light cause my brakes fail or dying cause my bearings burst lol
I built a 2nd bike with a 50cc after my 1st 66cc build & two rides later im selling it as I live on a hill and I am not very fit lol
After a few free mods, this little motor is starting to grow on me. Update video soon ;)
I had one like that exactly by California motorbikes.comm bike and motor. Does better. Still can't get it to idle. But does run better. Not much
How do you make your own head gasket?
I just cut up a soda can. Use a compass to cut a nice 40mm hole. Face the head and cylinder on a glass table to get it to seal... It's thin so make sure the piston wont contact the head.
Thanks will have to try this . Love your videos great help with all the troubles I have encountered.
How fast is it?
So far it's top speed is 22mph on flat ground.
So it would be better use 49cc sticker and a use 66cc kit?
Bingo ;)
I want to do something similar But I want to attach the Motor to the front gear On the bicycle With an extra sprocket on the left side So that way I can Use the gear shifting ratio To work like a transmission So I can hit higher speeds But Use a pull start type motor Like a weedwacker or a chainsaw And even though they might be slightly louder I'm honestly okay with that
Please clean those Bering races that will help you so much with that little motor. It looks pretty gutless lol on Amazon.Ca the 50cc is more pricy than the 66/80 and sometimes the big bore motors. 😂😂🤣🤣
You have to run Lucas 30 weight oil and you also have to run through it with the magnese oil of breaking oil of two-cycle and it wants all that happens the bike was breaking down at runs really good but the Piston knocks but I'm taking that thing from like three times four towns away to go meet a buddy totally reliable so don't be bashing on those little 49ers they're pretty good