2002 Yamaha YFM660 Grizzly factory service and repair manual, Page 40Get this manual
MAINTENANCE SPECIFICATIONS MAINTENANCE SPECIFICATIONS ENGINE Item Cylinder head: Warp limit -Standard
Limit 0.03 mm (0.0012 in)
Cylinder: Bore size Measuring point
100.005100.055 mm (3.93723.9392 in) 50 mm (1.97 in)
100.1 mm (3.94 in)
Camshaft: Drive method Cam dimensions
Chain drive (Left)