80cc 2-Stroke Bicycle Gasoline Engine Motor Kit DIY Motorized Bike Single Cylinder Air-cooled

great project to do when your bored. don't ride it up hills for a long time. and throw away the chain as soon as you get it. that will save you many tears. just buy another chain its like 10 bucks. id also upgrade the carburetor and all that jazz. overall its pretty good. the throttle handle didn't even come glued and It took me so long to figure that out so make sure to check to see if its secure. don't tighten the bolts on the wheel when your putting the gear on too much, one of the bolts popped off haha but I just used a spare one to replace it. but yeah I was impressed it even worked. also, secure the gas line with zip ties. great buy!

The kit works great had more power than my other one Other than a little chain rub on my frame it runs good

Two of the screws one the motor to put chain on where way to tight one came out like it was butter. Other two no and they where little stripped not much but it made it won't trying to get it out can't even get chain on it or do anything with it cause of so so idk on this. Cause I had multiple people try and same thing so

Had some damage to the clutch lever and fuel filter has a crack in it other than that this was a good product hopefully you can help me out with that so I can buy more thank you

This engine came damaged ,should have been new but appeared used,could have been carelessly shipped,the nuts and bolts are preaty cheap and snapped preaty easy there was a few issues with it,but the engine runs good,I'm over all happy with this engine,instructions would have been nice though 😄

22 year old installed in one night. Works well! No problems!

i instructon manual needs work and super small pics in it recommend youtube videos due to this issue and was missing 1 hose for the fuel

Bolts to the frame were aluminum crap. It did run for about a minute. Had multiple mechanics look and then found a broken piston. See pics. Bad machining. Not real happy. Terrible quality.

The media could not be loaded.  These engines are probably the best ones to buy. I've gone to school about 60 times with this engine and pinned it hard on the throttle and it still works. I've bought another one too a while a go and slapped it onto my 26"x4" fat tire bike and it goes around 40 km/h, just needs a tune up. On good days having it on full throttle it has a high chance of going 60-65 km/h and just cruising stays at a modest 50 km/h. One of my bikes has a upgraded exhaust that sounds pretty good.

This item arrived early and exactly as advertised. Not put together yet but looks great. Thanks ExGizmo

The media could not be loaded.  I’m not happy at all look at the state of my engine it shouldn’t have came like this!!I want a refund or a new 1 sent out ASAP !

Mine came without sprocket wouldn’t recommendWon’t work wo sprocket

Had fun with this little project I was impressed by the performance it handle the weight of the bike plus me going up fairly steep hills no problem.Pros:-Easy to install.-Great on fuel.-Decent power.Cons:-Kit should include a tool for shortening the chain.-Sprocket assembly isn't the greatest could be improved.-The chain tensioner needs to be tightened down enough it could damage the bike frame.-The wires for the CDI are short will get in the way of the exhaust.- Exhaust will need to be modified will get in the way of the pedals (depending of the bike)