I finished assembling my first motorized bike. I filled it with the 6 oz oil/1 gallon gas mixture, pulled up the choke lever, pushed the "tickle button" a couple times and tried engaging the engine riding downhill. I open the clutch, and I hear it start, but the bike just slows down and stops. I tried giving it gas, but nothing happens. What's wrong? Can someone PM me, or maybe someone wants to call me? I'm just a little confused-- never done this before!