kymco mo mxu250 Service Manual

 

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

for this operation.

• The following parts must be removed before separating the crankcase.

−Cylinder head (ÖChapter 7)

−Cylinder/piston (ÖChapter 8)

−Drive and driven pulleys (ÖChapter 9)

−A.C. generator (ÖChapter 16)

−Starter clutch (ÖChapter 18)

−Oil pump (ÖChapter 4)

SPECIFICATIONS                                                                                                      Unit: mm (in)

Item

Standard

Service Limit

Connecting rod big end side clearance

0.05～0.4 (0.002～0.016) 0.6 (0.024)

Crankshaft Connecting rod big end radial clearance 0～0.008 (0～0.00032)

0.05 (0.002)

Run out

⎯

0.1 (0.004)

TORQUE VALUES
Crankcase bolt

1 kgf-m (10 Nm, 7.2 lbf-ft)

Cam chain tensioner slipper bolt

1 kgf-m (10 Nm, 7.2 lbf-ft)

Cam chain cover bolt

1 kgf-m (10 Nm, 7.2 lbf-ft)

Excessive engine noise
Excessive bearing play