2008 Polaris Sportsman 500 EFI/X2/Touring/500 H.O. Service Manual, Page 82Get this manual

2008 Polaris Sportsman 500 EFI/X2/Touring/500 H.O. Service Manual, Page 82

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ENGINE 4 Measure free length of spring with Vernier caliperCheck spring for squarenessCompare to specificationsReplace spring if either measurement is out of specification seat area (B)NOTE: The valve