Hello folks my name is Jerry & I'm from San Francisco. This website really got me motivated to build my own project. I Decided to motorize my Trek 800 & was doing a nightride. I loosened the gas cap to allow the gas to flow, I was riding for about an hour until I felt my bottom was getting wet. I immeadiately stopped & found the gas cap had jarred off & the gas was splashing all over my bottom. I think I'm going to scrap this project and try putting the motor on my dual suspension GTlts 4000. I've ordered a new gas cap & once I get it I'll drill a breather hole. Thanks to all fon this wesite for the information & motivation, Peace.