Polaris ATV Forum - View Single Post - 2008 Sportsman 800 drive belt problems
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post #4 of (permalink) Old 07-11-2019, 12:32 PM
polman500 
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Join Date: Nov 2009
Location: SE Kentucky
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Heat is usually what kills a belt and causes it to explode. Check that your air ducts are not obstructed and that clutch alignment is good. Misalignment and scrubbing on one side of the sheaves creates excess heat hardening the belt compound over time. The hardened belt will then crack leading to catastrophic failure at high speed.
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