KYMCO MXU 500 - Service Information; Troubleshooting; Balance Shaft

12.LEFT CRANKSCASE/CRANKSHAFT/
BALANCE SHAFT
12-2
MXU 500
SERVICE INFORMATION
GENERAL INSTRUCTIONS
xThis section covers crankcase separation to service the crankshaft. The engine must be removed
for this operation.
xThe following parts must be removed before separating the crankcase.
Cylinder head (
Ö
Chapter 8)
Cylinder/piston (
Ö
Chapter 9)
Drive and driven pulleys (
Ö
Chapter 10)
A.C. generator (
Ö
Chapter 17)
Starter clutch (
Ö
Chapter 19)
Oil pump (
Ö
Chapter 4)
SPECIFICATIONS Unit: mm (in)
Ite
m
Standar
d
Service Limit
Not USA type
0.01阡0.4 (0.002阡0.016) 0.6 (0.024)
Connecting rod big
end side clearance
USA type
0.3阡0.6 (0.012阡0.024) 0.8 (0.032)
Connecting rod big end radial clearance
0阡0.008 (0阡0.00032) 0.05 (0.002)
Crankshaft
Run out
 0.1 (0.004)
TROUBLESHOOTING
Excessive engine noise
Excessive bearing play