kymco mo kxr 50 Instruction De Maintenance

Measure the crankshaft runout.

Service Limit

A

B

0.100mm

replace if over

0.150mm

replace if over

Check the crankshaft bearings for excessive

play. The bearings must be replaced if they

are noisy or have excessive play.

CRANKSHAFT INSTALLATION
Wash the crankshaft in cleaning solvent and

then check for cracks or other faults.

Axial

Play

Play

Radial

• After check, apply clean engine oil to

all moving and sliding parts.

• Remove all gasket material from the

crankcase mating surfaces. Dress any

roughness or irregularities with an oil

stone.