I have a 2001 and a 2002 Polaris Magnum 500's. they are both liquid cooled 4 valve four strokes. Is it normal to be able to hear the valves tapping over the engine running. Its not that loud but it is noticable. Now both of these machines do this the 02 has about 90 miles and the 01 about 550 miles. So is this tapping normal????

 

so no one knows if this tapping noise is normal?

 

[img]i/expressions/face-icon-small-smile.gif[/img]Hello again, I have had 2 four stroke Polaris's, and they both had a noticeable valve noise especially at the lower rpm's. I only own 2-cycles now, so that's all I can tell you from my experience. Bubba

 

Yes, normal.......

 

If it bothers you just check the adjustment on them.I think they both set at .006