want power assisted bike with weed eater motor

thebigC · #1 Apr 29, 2007, 07:37 PM

I want to attach the weed eater that I finally got running to my old mountain bike. I need to know how to convert the high rpm's to more torque. I was thinking that maybe put a propeller on it or directly to the back tire. Need some ideas. Thanks

here are some clips of both ideas: YouTube - Homemade weedwhacker motorcycle
YouTube - Bicycle with weed wacker engine and propeller

john mccartney · Aug 29, 2008, 07:22 AM

i know a guy that put one on a bike and instead of using gas to power it he uses rubbing alcohol and 2 cycle engine oil. it must work cause that thing flies. he hit 65 on the high way. and it picks up pretty quick too.

junker454 · Apr 13, 2009, 08:20 AM

My idea wouldn't be hard just switch the gears around or rig up a chain where the engine is spining a small gear on a chain to a big gear.



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