2002 Yamaha YFM660 Grizzly factory service and repair manual, Page 174Get this manual

2002 Yamaha YFM660 Grizzly factory service and repair manual, Page 174

VALVES AND VALVE SPRINGS 3.Install: Valve cotters

NOTE: Install the valve cotters while compressing the valve spring with the valve spring compressor and valve spring compressor attachment 2Valve spring compressor: PNYM-04019, 90890-04019 Valve spring compressor attachment: PN90890-01243