Hello everyone! I am posting here because I am extremely frustrated. A few months ago I bought a "Jet 66cc/80cc" 2-stroke engine from "gasbike.net". I also bought a 200 dollar mountain bike for which to mount it on. I worked endlessly trying to get the engine to work on the mountain bike but came to a problem with the engine cogs and the rear wheel sprocket not being aligned enough.
This would cause the chain to come off the engine cogs after 15 or so full rotations. It seems that the the engine cogs are angled slightly so that the rear sprocket would have to be closer to the center of the bike (I am not using the outside rubber spacer and have placed the rear sprocket flesh with the back wheel and have flipped it so the teeth are as close to the center-line of the bike). It seems the rear sprocket needs moved further to the center which is impossible? I have tried mounting this engine on 3 bikes and still I have the same problem, everything else works on the engine.
Sorry I would have posted pics of the bike but I am not home right now. I will post pics asap. It would seem this is the end of the road for this project. I have taken the engine to multiple places and have been turned down by everyone because of liability they refuse to work on it. Any help would be great.
This would cause the chain to come off the engine cogs after 15 or so full rotations. It seems that the the engine cogs are angled slightly so that the rear sprocket would have to be closer to the center of the bike (I am not using the outside rubber spacer and have placed the rear sprocket flesh with the back wheel and have flipped it so the teeth are as close to the center-line of the bike). It seems the rear sprocket needs moved further to the center which is impossible? I have tried mounting this engine on 3 bikes and still I have the same problem, everything else works on the engine.
Sorry I would have posted pics of the bike but I am not home right now. I will post pics asap. It would seem this is the end of the road for this project. I have taken the engine to multiple places and have been turned down by everyone because of liability they refuse to work on it. Any help would be great.