2012 Sportsman 400/500 and EFI Tractor Service Manual 9923412, Page 76Get this manual
ENGINE 10Slide camshaft out the PTO side of the cylinder head
Automatic Compression Release Installation
1Slide spring onto shaft2Apply engine oil to release lever shaftThe actuator ball must be held outward to allow installation of the release lever shaftStop Pin
Automatic Compression Release RemovalInspection