1997 Yamaha YFM600FWAK ATV Service Manual, Page 173Get this manual
TRANSMISSION AND CRANKSHAFT
CRANKSHAFT INSPECTION 1.Measure: Crank width Out of specification -7 Replace the crankshaft
Crank width: 74.95 75.00 mm (2.951 2.953 in)
Side clearance Out of specification -7 Replace the crankshaft
Big end side clearance: 0.35 0.65 mm (0.014 0.026 in) limit: 1.0 mm (0.040 in