I have a 2001 scrambler 400 and it has a clicking sound coming from the head area,probally the piston.Are polaris pistons this loud or is it ready to go?Will going to premix quiet it down?i heard that the oil injector runs it lean at idle and richens the mixture as rpms increase...any truth to that.

 

Pull the exhaust pipe off and inspect the piston. If it's discolored and scored the slug's gone bye-bye. If it looks bad, pull the carb,intake and reeds and look at the intake side. If it looks bad, it's time to invest in a Wiseco.

 

The Polaris two-stroke are a little noisy. It is difficult to give you a recomendation without hearing it. My 250 does have a little rattle.

 

its very annoying,click,click,click,click....till i give it some gas and it seems to quiet down.my old 98 modded trailblazer had the same noise and that baby is still running strong on the stock piston.will goin to premix quiet it down?

 

Mine has done the same thing ever since I have had it. I think thats just the way they sound.

KD