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11. Transmission/Crankshaft/Crank Case
Service Information
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
Connecting rod big end side clearance
Crankshaft
Radial clearance
Crankshaft runout
11-1
11-2
11-3
11-6
Item
Right
Left
Transmission/Crankshaft/Crank Case
Standard value
0.1~0.35(0.0039-0.0138)
0-0.008(0-0.003)
-
-
11-7
11-8
11-9
11-10
11
Unit: mm(in)
Service Limit
0.05(0.002)
0.1(0.004)
0.1(0.004)
11-1
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