Precautions In Operation - Sym PA12B Service Manual

9. Crankshaft / Crankcase / Transmission / Kick Starter

Precautions in Operation

General Information
This Section concerns disassembly of the crankcase and transmission system for repair
purpose.
The following components need to be removed before disassembling the crankcase.
Engine
Cylinder Head
Cylinder / Piston
Clutch / Oil Pump / Gear Shift Spindle Chapter 4
ACG / Starter Clutch / Starter Motor
The crankshaft should be replaced as a unit if the timing sprocket on the crankshaft needs to
be replaced.
Specification
Conrod big end side clearance
Conrod big end vertical clearance
Crankshaft
Conrod small end inner diameter
Gear shift fork
Shift fork shaft
Kick starter spindle outer diameter
Kick starter
Kick starter pinion inner diameter
Torque Value
Crankcase bolt
Cylinder / cylinder head bolt
Engine oil drain bolt
Cam chain tensioner bolt
Special Tools
Inner bearing puller
Bearing driver 6204
Bearing driver 6301
Bearing driver 6203/6004
To this chapter contents
Chapter 6
Chapter 7
Chapter 8
Chapter 5
Item
Run-out
Inner diameter
Claw thickness
Outer diameter
0.8~1.2kgf-m
0.7~1.0kgf-m
1.5~2.5kgf-m
0.8~1.2kgf-m
SYM-6204020
SYM-9110400
SYM-9610000
SYM-9620000
Standard
0.050~0.300
0.004~0.012
─
15.010~15.028
12.000~12.018
4.930~5.000
11.976~11.994
24.859~24.880
24.900~24.921
Unit：mm
Service Limit
0.600
0.050
0.100
15.080
12.050
4.700
11.960
24.800
24.960
9-3