um UXPW125 - Page 99

UXPW 125 ENGINE SERVICE MANUAL AND EFI DIAGNOSTIC
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8.8.4. Measure side clearance between large-end of
connecting rod and crankpin using feeler
gauge
Service limit
0.5mm
8.8.5. Measure connecting rod radial clearance, at
the large end
Service limit
0.05mm
Check timing drive sprocket on crankshaft for
abnormal wear and damage. If there is, check
correspondingly timing driven sprocket, chain,
tensioner, etc. for abnormal condition
When it is necessary to replace timing drive
sprocket, tooth crown of drive sprocket shall be
aligned with center of crankpin
8.8.6. Check balanced shaft for abnormal wear.
Replace it with a new one if is necessary
8.8.7. Check if bearing can rotate freely.
In case of any defective bearing, change it by a
new one.