Weed eater bike

[efinz]

ive seen lots of videos and stuff about how to do it, but i was wondering if anyone knows how to make one

 

[tykenfitz]

The first thing you have to do is figure out how you want to drive the bike with the motor (like friction, chain, belt etc.) I think most weed eater bikes are friction drivin. What kind of clutch or w/e is on the engine? Also a big thing is where are you going to mount the engine?