Installation Instructions
11. Crankcase / Crank 
11-5 
Measure the clearance of the big end at the 
vertical directions. 
Service limit: 0.05 mm 
Place the crankshaft on a V-block, measure 
run-out of the crankshaft. 
Service limit: 0.10 mm 
Check crankshaft bearing 
Use hand to crank the bearing to see it moves 
freely, smoothly and noiseless. 
Check the inner ring to see it links firmly on the 
bearing. 
If any roughness, noise and loose linkage are 
detected, replace the bearing with new one. 
 Caution 
The bearing shall be replaced in pair.
Special tool: 
Outer bearing puller  SYM-6204001
50 mm 
50 mm
Crank bearing 
 Out bearing puller
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