I have some ideas about putting a motor on a bike. I want to mount a 49cc 2cycle engine to the frame with the drive shaft on the right side of a bike with 2 sprockets in the front and 3 or 4 in the back. With the setup I'm thinking of I could change what gear I'm in and theoretically achieve greater speeds or lots of torque depending on the gear. The engine would connect to the larger of the front sprockets and the smaller front sprocket would be connected to the back sprockets. I would have a pull, kick or electric start with the pedals removed. With a chainsaw style clutch so I can start it in place then go. All of the kits and motors I have seen are made to drive an additional sprocket added to the left side of the rear wheel. I have seen some Chinese kits that look pretty good and I would need most of the parts from the kit to make it work, but there is one main question that is keeping me from starting: Is it possible to run a 2cycle engine backwards or am I out of luck?