im a 30yrs old and married, i have 3 sons, oldest one is 9 and the youngest is 6 months.Ive had alot of expensive motored toys thats came and gone(dirtbikes,atvs,go-carts,etc.).Now in my spare time i find my self in the garage trying to mount a engine to my bicycle or laying in bed at night thinking how it should be set up.I know i should just buy the kit and be done,but I dont ever have enough extra cash,so here I am.Ive got some old gocart parts and things.5HP BRIGGS that runs great,ive seen its not to popular in this application but thats what i got. I also have a centrifical clutch with 12 teeth and rear sprocket of 60 teet #35 chain. Ive elected for a rack mount set up on my 26in mt. bike.I been working on a rubber hub to mount my sprocket to on the rear wheel.every thing is complete and on the bike but I havent tryed it out im scared it wont work because of what ive been seeing about the gear ratio.