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Hi, couldnt figure out this issue so this is my first experience with this fourm. Just finished building a 49cc chinese bike kit, and wont start. Pops a couple times here and there but nothing lasting. After riding for 50ft spark plug is totally blackened. Figured it was running to rich, even...

Howdy, I'm building a hill climber, not a street racer or commuter. There are so many brands and merchants selling motor kits now that it's crazy. I'm looking for guidance/tips on which kit I should select on a budget ;). 56 to 60 tooth sprocket Hopefully sprocket adapter If it's bad, I will...

hello, I’m new to this website and don’t know if this is where I post so if it isn’t please direct me to where I should post it I have a cheap Chinese 80cc 2 stroke with a “speed” carburetor (the one with the red filter cap instead black). After driving it for a little it stopped working and...

Hello everyone, This is my first post. Some background on myself in regards to motorized bicycles is that I have already built on 66cc motorized bike. It was pretty junkie bike but I really enjoyed working on it. Also I got it going about 27mph with all stock on 24" wheels. It became so...

Hey guys new to this Had my bike for 2 days and decided to start taking things apart just to check on them and see how it works ( i know now that this was not a good idea) long story short i cannot get the plate that holds the pin that pushes the bucking bar and accuator bearing to close, i was...