KYMCO Bet & Win 125, Руководство пользователя, Страница: 120 / 225

11
. CRANKCASE/CRANKSHAFT
11-2
Bet & Win 125/150
SERVICE INFORMATION
GENERAL INSTRUCTIONS
•
This section covers crankcase separation to service the crankshaft. 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 (
!
6-4)
Cylinder/piston (
!
7-3)
Right crankcase cover/drive and driven pulley (
!
8-3)
A.C. generator/starter clutch (
!
10-3)
Rear wheel/rear shock absorber (
!
15-4)
Starter motor (
!
19-3)
Oil pump (
!
4-4)
SPECIFICATIONS
Item Standard (mm) Service Limit (mm)
Connecting rod big end side clearance 0.15
_
0.35 0.6
Crankshaft Connecting rod big end radial clearance 0.
_
0.008 0.05
Runout
æ
0.10
TORQUE VALUES
Crankcase bolt 7.8
_
10.8N-m
Cam chain tensioner slipper bolt 7.8
_
11.8N-m
SPECIAL TOOL
Gear remover
TROUBLESHOOTING
Excessive engine noise
•
Excessive bearing play
•
Excessive crankpin bearing play
•
Worn piston pin and piston pin hole