2012 Sportsman 400/500 and EFI Tractor Service Manual 9923412, Page 84Get this manual

2012 Sportsman 400/500 and EFI Tractor Service Manual 9923412, Page 84

ENGINE Cylinder Head Assembly CAUTION Wear eye protection during assemblyNOTE: Assemble the valves one at time to maintain
2Apply engine oil to valve guides and seats3Coat valve stem with molybdenum disulfide grease4Install valve carefully with
rotating motion to avoid damaging valve seal5Dip valve spring and retainer in clean engine oil and install spring with closely
spaced coils toward the cylinder headNOTE: The exhaust valves share common rocker arm, and must be adjusted using two feeler
gauges1Insert .006" feeler gauge(s) between end of the valve stem and adjuster screw(s) Feeler Gauge for Both Valves 2Loosen
locknut(s) and turn adjuster screw(s) until there is slight drag on feeler gauge(s)The Valve Clutch Adjuster Tool (PA-44689)
can be used to adjust the engine valvesNOTE: Both feeler gauges should remain inserted during adjustment of each exhaust