2002 Sportsman 500HO knock at idle.

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Jan 16, 2004 | 11:35 PM

Madcap

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Range Rover

Joined: Feb 2003

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2002 Sportsman 500HO knock at idle.

I just bought a 2002 Sportsman with 4000 miles on it. It runs great but it has a knock at idle only. It sounds almost like a sloppy piston in a 2 stroke. Should I be concerned with this noise?

Jan 17, 2004 | 12:15 AM

BigBadScrambler

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2002 Sportsman 500HO knock at idle.

It could be the primary clutch ot the valves. I would check the valve clearence if it hasnt been done in awhile. But just about all (including mine) 500 HO motors seem to have that "knock"

Jan 17, 2004 | 12:30 AM

pest44

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Joined: Aug 2001

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2002 Sportsman 500HO knock at idle.

They are just some knocking sons-of-guns. After riding polaris quads 5,000 miles, I'd worry if it didn't knock.

Jan 17, 2004 | 02:39 AM

fishslab

Pro Rider

Joined: Sep 2003

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2002 Sportsman 500HO knock at idle.

One explanation for the knock that I've heard about is the EBS ratcheting in the primary at low rpm and speed. Sounded as good as any other theory.lol