So today i was riding my 82 Ascot and let off the gas to coast to a stop sign. This is when the bike abruptly died. Tried to start it again, it would crank but would not turn over unless i applied throttle. At the time i was about a quarter mile from my house so i held down the throttle and rode it home. when i let off the throttle in my drive way, it again died. I looked at the engine and it appeared to have fresh oil on the top of the head/around the intake. I checked my oil and it smells like gas. What is my problem and what else can i check to help narrow it down?