Re: burn down again
The same thing happened to me and my 400, so much so that they called me piston poppin Mag. Hubby worked at the polaris place at the time so we had lots to work with. We started with the exciter coil...no go. Then tried everything else that could be done...no go. Then put in a completly different moter we had sitting on the bench just for such an occasion. Popped another piston. Each time would get about 1000 miles on before meltdown. I was depressed. This is my custom built sled.Finely hubby said that the only thing left, that couldnt be really checked was the cdi box.I mean everything had been replaced. By this time I had a new jug, gone back to stock pistons, even a new crank. We put the new cdi box on at 14000miles. Inow have 18600miles on. I would try a NEW cdi box. (We tried a used one once and it was bad too.) Needless to say, hubby tried to smash the two bad ones so no one else could get ahold of them. He couldnt even dent them. Tough little buggers.