did that the other night. it sparks but very low. my friend said the timing was off. he fixed it enough to get home. when it got home it seemed fine. then yesterday i started it and it started just fine. did it couple of times during the day. So it Seemed Like it was Fix so I decided to take it out for a test drive to a store couple blocks down the street. drove, then out of no where car just dropped rpm to "0" and wouldn't go forward. i shifted it in the next gear it backfired Very Loud. Got to the store, parked and waited to see if it would shut off. it didn't so i let it cool down for about an hour. then decided to take back home. during the trip back it just stalled. tried to restart it but it just cranks...tried couple more times and it started. took it home and parked it.