I have a Polaris Magnum 4x4. I've been having problems with it back firing threw the carb for quite a while now. It only does it when you hammer the gas or once it get up in speed. It idles fine but if you leave it in neutral and give it gas it does it than to. In July my step father was up for a visit and I have had been busy with work than so I let him take it back down state with him. He said he fixed it and it was running great. So just this last weekend I went down and got it. Yesterday I unloaded it and fired it up and it still does the same thing. Its really pissing me off. When he worked on it he had replaced the cam shaft because the lobs were all worn out and a new set of rings and the carb was gone threw. I am hoping that someone can be of some assistance because Im totally baffled. Thanks alot guys.
