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10. CRANKCASE/CRANKSHAFT/TRANS-
MISSION SYSTEM/STARTER SPINDLE QUANNON 125
STARTER SPINDLE INSPECTION
Inspect the starter spindle for wear or
damage.
Measure the starter spindle O.D.
Service Limits:
A2 : 15.95mm replace if below
B : 19.95mm replace if below
A1 : 11.95mm replace if below
A1 A2 B Starter Spindle
Play
BEARING INSPECTION Play
Check the main shaft, countershaft and
balance shaft bearings for smooth turning.
Replace the bearings with new ones if they
do not turn smoothly, quietly, or if they fit Axial
loosely in the case. Radial
If the countershaft needle bearing in the right
crankcase is noisy or has excessive free play,
replace it with the crankcase as a set.
Countershaft
Bearing Right Crankcase Main Shaft Bearing
BEARING REPLACEMENT
Remove the main shaft and countershaft
bearings from the left and right crankcase
halves using the following tools.
Special Tool
Bearing Remover E037
Bearing Remover Block E037
Main Shaft Bearing Remover Countershaft
Bearing
Drive in new bearings using a bearing driver. Crankcase
· Apply engine oil to the bearings before
installation.
· Drive in bearings squarely.
Special Tool
Bearing Driver E037
Bearing Driver
10-9