Generic TR 125 Service Manual page 128

Measure the clearance in the X-Y direction of the
big ends of connecting rod.
Allowable limit: 0.008-0.018mm.
Measure the jumping of the crankshaft.
Allowable limit: 0.03 mm.
Check whether there is abnormal sound or loose
for the revolution of the crankshaft bearing. If any,
replace the crankshaft assembly.
Testing point
- 123 -
Position for measurement in
the big ends of connecting rod
Crankshaft
bearing