11. CRANKCASE/CRANKSHAFT K-XCT 125i
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
Cylinder/piston (chapter 7)
Drive and driven pulley (chapter 8)
A.C. generator/starter clutch (chapter 10)
Rear wheel/rear shock absorber (chapter 16)
Starter motor (chapter 19)
Oil pump (chapter 4)
SPECIFICATIONS Unit: mm
Item Standard
Connecting rod big end side clearance 0.150.35
Crankshaft
Connecting rod big end radial clearance 00.008
TORQUE VALUES
Crankcase bolt 1.0 kgf-m
Cam chain tensioner slipper bolt 1.0 kgf-m
TROUBLESHOOTING
Excessive engine noise
Excessive bearing play
Excessive crankpin bearing play
Worn piston pin and piston pin hole
11-2
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