1986-1991 Kawasaki 650 X-2 Service Manual, Page 74Get this manual
710 ENGINE BOTTOM END OWith the connecting rod held verticailly, use height gauge to measure the difference in the height of the arbor above the surface plate over 100 mm length to determine the amount of connecting rod bendIf connecting rod bend exceeds the service limit, the connecting rod or crankshaft must be replacedConnecting Rod Big End Radial Clearance
Connectling IRod Bend Standard: Service Limit:
Under 0.05100 mm 0.2100 mm
-Measure connecting rod twistOWith the crankshaft still in the alignment jig, hold the connecting rod hori:zontally and measure the amount that the arbor varies from being paral'lel with the crankshaft over 100 mm I'ength of the arbor to determine the amount of connecting rod twist
OPus.p the connecting rod first towards the gauge and then in the opposite directionThe difference between' the two gauge readings is the radial clearance If the radial clearance exceeds the service limit, the crankshaft assembly must be replaced or disassembled and the crankpin, needle bearing, and connecting rod big end examined for wear