Motor starts and runs great for several hours then dies and will not fire at all. After sitting for a while, will start again woth no problem. COuld it be a power pack problem or more likely fuel related? (Bulb was firm when the engine died) After it died, it would not even try to fire, just turn over as if no fire or no fuel. I am not sure if power packs go bad all of a sudden or is there some "slow death" in them. Thanks for any response
