Kymco MO MXer Service Manual - chap 11 (carter e contralbero)
11. CRANKSCASE/CRANKSHAFT/
BALANCE SHAFT
11-0
MX’er SYSTEM
11
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CRANKCASE/CRANKSHAFT/BALANCE SHAFT
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SERVICE INFORMATION -------------------------------------------- 11- 2
TROUBLESHOOTING ------------------------------------------------- 11- 2
CRANKCASE SEPARATION ----------------------------------------- 11- 3
CRANKSHAFT INSPECTION----------------------------------------- 11- 4
CRANKCASE/BALANCE SHAFT ASSEMBLY -------------------- 11- 5
11
11. CRANKCASE/CRANKSHAFT/
BALANCE SHAFT
11-1
MX’er SYSTEM
11. CRANKSCASE/CRANKSHAFT/
BALANCE SHAFT
11-2
MX’er SYSTEM
SERVICE INFORMATION
GENERAL INSTRUCTIONS
• This section covers crankcase separation to service the crankshaft. The engine must be removed
for this operation.
• The following parts must be removed before separating the crankcase.
-Cylinder head (!Section 7)
-Cylinder/piston (!Section 8)
-Drive and driven pulleys (!Section 9)
-A.C. generator (!Section 4)
-Carburetor/air cleaner (!Section 5)
-Starter motor (!Section 16)
-Oil pump (!Section 4)
SPECIFICATIONS
Item
Standard (mm)
Service Limit (mm)
Connecting rod big end side clearance
0.10_ 0.35
0.55
Crankshaft
Connecting rod big end radial clearance
0_ 0.008
0.05
Run outæ0.10
TORQUE VALUES
Crankcase bolt 0.8_ 1.2kgf-m
Cam chain tensioner slipper bolt 0.8_ 1.2kgf-m
Cam chain cover bolt 0.8_ 1.2kgf-m
TROUBLESHOOTING
Excessive engine noise
Excessive bearing play
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