Must have become full of fuel. Better check your carb setup. I was once riding in a F%#d pick up with a friend and his catalytic converter loaded up. The truck started snorting and running really rough until KERRRWHAM! Blew the exhaust right off and bent the drive shaft. Unbelievable. Scared the bejeepers out of both of us.
(yeah, I know....friends don't let friends drive F#rds)See what happens?
