Transmission/Crankshaft/Crank Case
Service Information
General Safety
●
This section describes how to remove the crank case and to maintain the transmission and the crankshaft.
●
Service transmission without removing the engine from the vehicle. However, to prevent damage to the L.
crank case, remove the engine and disassemble the rear brake prior to changing the L. crank case bearing.
●
Always use special tools to change the drive shaft. Fix the bearing inner race, and install the shaft.
●
The following parts must be removed prior to removing the crank case. Follow the removal procedure
specified in each section.
- Oil pump (
section 3)
- Carburetor (
section 5)
- Engine (
section 6)
- Cylinder head, cylinder, and piston (
section 9 and 10)
- AC generator (
section 8)
- Drive pulley (
section 7)
- Clutch / driven pulley (
section 7)
●
The following parts must be removed prior to changing the L. crank case. Follow the removal procedure
specified in each section.
- Transmission (
section 11)
- Rear brake (
section 13)
●
To assemble the crank case and crankshaft, set the special tool to the inner race of the crankshaft bearing,
and push and assemble. Remove the bearing from the crankshaft during disassembling work, and insert a
new bearing in the case. Install the oil seal after the case is assembled.
Specifications
11-1
11. Transmission/Crankshaft/Crank Case
Service Information
11-1
Troubleshooting
11-2
Transmission
11-3
Crank Case Disassembly
11-6
Crankshaft Disassembly
11-7
Crankshaft Bearing
11-8
Crankshaft Assembly
11-9
Crank Case Assembly
11-10
Item
Standard value
Service Limit
Connecting rod big end side clearance
0.1~0.35(0.0039-0.0138)
Crankshaft
Radial clearance
0-0.008(0-0.003)
0.05(0.002)
Crankshaft runout
Right
-
0.1(0.004)
Left
-
0.1(0.004)
Unit: mm(in)
11
Summary of Contents for NS125III - SERVICE
Page 2: ......
Page 3: ......
Page 5: ......
Page 31: ...MEMO...
Page 52: ...MEMO...
Page 53: ...Fuel System 5 0 Fuel tank Fuel strainer Fuel pump Carburetor...
Page 63: ...MEMO...
Page 67: ...L Crank Case Cover Kick Starter Continuously Variable Transmission 7 0 L crank case cover...
Page 85: ...Generator Starter Clutch 8 0...
Page 116: ...MEMO...
Page 117: ...Transmission Crankshaft Crank Case 11 0 R Crank Case Crankshaft L Crank Case...
Page 153: ...MEMO...
Page 177: ...MEMO...
Page 191: ...MEMO...
Page 192: ...MEMO...
Page 193: ...MEMO...
Page 194: ...Wiring Diagram 19 1 19 Wiring Diagram 19...
Page 202: ...MEMO...
Page 203: ...2002 11 PRINTED 1999 11 PUBLICATION SERVICE MANUAL NO COPY...