Polaris 2001 High-Performance Snowmobile Service Manual (PN 9916690), Page 71Get this manual
ENGINE Disassembly, Cont13Remove bolts and separate case halvesKeep bolts in order for assembly
14To prevent damage to snap-ring grooves, lift crankshaft straight upward and out of lower case
15If pump shaft removal is necessary, remove retaining pin from crankcase using diagonal cutter or similar tool