kymco mo kxr 50 Manuales De Servicio

• 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 (!Chapter 7 (Mongoose/KXR 90))
-Cylinder/piston (!Chapter 8)
-Drive and driven pulleys (!Chapter 9)
-A.C. generator (!Chapter 14)
-Starter clutch (!Chapter 16)
-Oil pump (!Chapter 4)

Item

Standard (mm)

Service Limit (mm)

Connecting rod small end free play

0.05_ 0.4

0.6

Crankshaft Connecting rod big end radial clearance

0_ 0.008

0.05

Run out

æ

0.10

Item

Standard (mm)

Service Limit (mm)

Connecting rod big end side clearance

æ

0.6

Crankshaft Connecting rod big end radial clearance

æ

0.04

Run out A/B

æ

0.1/0.15

TORQUE VALUES
Crankcase bolt

0.8_ 1.2kgf-m

Cam chain tensioner slipper bolt

0.8_ 1.2kgf-m (Mongoose/KXR 90)

SPECIAL TOOLS (Mongoose/KXR 50)
Crankcase puller 

E026

Universal bearing puller 

E030

Crankshaft install tool

E016

Crankcase assembly tool

E024

Oil seal and bearing install tool

E014

Abnormal engine noise
• Excessive crank journal bearing play
• Excessive crankpin bearing play
• Excessive transmission bearing play