My first build is running well.

I have made my first motored bike, thanks everybody for being so helpfull, All I have to do now is cosmetics on the bike. Heres the link to my pics.

removed cause it doesnt work

Yes, the back tire is smaller, its the only way the chain will clear the tire.
I will have to change the front one to match, and i will change the front forks to support brakes

 

[Alaskavan]

Bummer dude. Have you verified that there is no spark. Perhaps the plug wire vibrated loose on one end or the other?