kymco mo x500 Instruction De Maintenance

 

GENERAL INSTRUCTIONS
• This section covers crankcase separation to service the crankshaft and balancer. The engine must

be removed for this operation.

• When separating the crankcase, never use a driver to pry the crankcase mating surfaces apart

forcedly to prevent damaging the mating surfaces.

• When installing the crankcase, do not use an iron hammer to tap it.
• The following parts must be removed before separating the crankcase.

Cylinder head (section 8)
Cylinder/piston (section 9)
Drive and driven pulley (section 10)
A.C. generator/starter clutch (section 12)
Starter motor (section 19)
Oil pump (section 4)

SPECIFICATIONS                                                                                                    Unit: mm (in)

Item

Standard

Service Limit

Main bearing oil clearance 0.025 (0.001)～0.041 (0.0016)

0.07 (0.003)

Crankshaft Connecting rod big end side

clearance

0.05 (0.002)～0.5 (0.02)

0.8 (0.031)

Runout

⎯

0.06 (0.002)

Crankcase bolt

12 N•m (1.2 kgf•m, 9 lbf•ft)

Cam chain guide bolt

20 N•m (2 kgf•m, 15 lbf•ft)

Oil pipe bolt

43 N•m (4.3 kgf•m, 31 lbf•ft)

Bearing puller

E037

Oil seal & bearing driver

E014

Excessive engine noise
• Worn connecting to small end
• Worn or damaged crankshaft bearings