2008 Polaris ATV Sportsman 300 400 H.O. Service Manual, Page 53Get this manual
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ENGINE (300) Engine Service Data
Install new as part of any crankshaft removal
.0020" (.05 mm) .8669-.8677" (22.02-22.04 mm) .8656-.8661" (21.987-22.00 mm) .0039" (.10 mm) .006" (.1