KYMCO Super 8 50, Service Manual

Page: 124 / 185

11
. CRANKCASE/CRANKSHAFT
11-1
Super 8 50
SERVICE INFORMATION
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 (

Section 7)

Cylinder/piston (

Section 8)

Drive and driven pulleys (

Section 9)

A.C. generator (

Section 14)

Carburetor/air cleaner (

Section 5)

Rear wheel/rear shock absorber (

Section 13)

Starter motor (

Section 16)

Oil pump (

Section 4)
SPECIFICATIONS
Item Standard (mm) Service Limit (mm)
Connecting rod big end side clearance
0.10
～
0.35 0.55
Crankshaft Connecting rod big end radial clearance 0-0.008 0.05
Runout

0.10
TORQUE VALUES
Crankcase bolt 0.8~1.2kgf-m
Cam chain tensioner slipper bolt 0.8~1.2kgf-m
TROUBLESHOOTING
Excessive engine noise

Excessive bearing play

Excessive crankpin bearing play
SERVICE INFORMATION ....................... 11-1 CRANKSHAFT ....................................... 11-3
TROUBLESHOOTING.............................. 11-1 CRANKCASE ASSEMBLY ................... 11-4
CRANKCASE SEPARATION .................. 11-2