kymco mo yup250 Service Manual

Measure the crankshaft runout.
Service Limit: 0.10mm replace if over

Measure the crankshaft bearing play.
Service Limits:
  Axial : 0.20mm replace if over
  Radial : 0.05mm replace if over

Clean off all gasket material from the

crankcase mating surfaces.

Install a new oil seal into the left crankcase.

Axial

Play

Play

Radial

•

Avoid damaging the crankcase

mating surfaces.

＊

Oil Seal

Left  Crankcase