Engine on bike

[spanerman]

ive done this with a bmx, we made a rear axle(no diff) with a go-cart tyres with honda 160cc fourstroke with a clutch:D did 45 with the right gearing, consider that?

[SpudBlaster15]

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[iPaintball]

Yeah what if you ran out of gas? What state do you live in? In some states there are power limits for riding vehicles without a license.

[MisterSteve124]

Fine, as you wish. I am just saying, you are on many occasions going to wish you had the ability to pedal.

I'm pretty sure that you don't know what I am going to wish. iPaintball this will get atleast 130mpg I think I will be smart enough to fill it up before I leave and I don't even plan on going more the 50miles.

[SpudBlaster15]

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[MisterSteve124]

I know it could be done easily but it would just be a little more money and right now I am trying not to spend over 100 bucks. I've already spent a ton of money this summer. And it would just be another thing that could go wrong, since I don't have very much experience with this I don't want to bite off more than I can chew. I can always take the chain off the motor and switch it to the pedals if i really need to get hom and something went wrong.

Ok I changed my mind someone that I know weighed a 3hp briggs and straton engine that they had and it was 37lbs so thats too much. So we decided to use craftsman 42cc chainsaw engines I think that should be enough because they sell friction drive 40cc engine kits that go 30-35mph. I should get more speed with a chain driven.

I finally got the chainsaw I'm using and last night I started to disassemble the chainsaw. I was going to just buy a new clutch that would fit a bike chain but I don't think I will be able to find one that will fit. So do you guys think I would be ok just grinding down the teeth on the outer clutch housing and just getting a bike sprocket weld on to the outside and use that? Any potential problems? Thanks