Yea i have this 78 puch and im having trouble keeping it on. Some times it starts no problem but then when it turns off i cant turn it back on or sometimes i have no problem at all and if i do i . i cant turn it on until the next day. i checked to gas flow its fine. i checked the carb bowl and all its fin.. but i dont kno about the spark plug of the coil? so what can it be?