1987-2009 Yamaha ATV YFM350X Warrior Raptor Service Manual, Page 105Get this manual
ENGINE DISASSEMBLY
CRANKSHAFTROCKER ARMSVALVES NOTE: _
With the engine mounted, the camshaft, rocker arms and valves can be maintained by removing the following parts: -Fuel tank -Engine stay (upper) -Exhaust pipe
1Straighten:Lock washer tabs 2Remove: -Lock washerRetainer (camshaft bearing)