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10. CRANKCASE/CRANKSHAFT/KICK
STARTER/TRANSMISSION K-PIPE 50
Inspect the transmission drum for scratches Right Left
or poor lubrication.
Check the transmission drum grooves for
damage.
Check the bearing for excessive free play.
Measure the transmission drum O.D.
Service Limits:
Left : 13.05mm replace if below
Right : 16.10mm replace if below
Check the transmission drum and
transmission fork shaft holes in the left and
right crankcase halves for wear or damage.
TRANSMISSION BEARING
INSPECTION
Turn the inner races of the bearings with
your finger.
The bearings should turn smoothly and
quietly.
Also check that the outer races of the
bearings fit tightly in the crankcase.
Replace the bearings if they are abnormal
(page 10-10)
ASSEMBLY
Apply clean engine oil to the sliding and
rotating surfaces of the gears, bushings and
shafts.
Assemble the main shaft and countershaft.
Install the snap rings aligning their end
gaps between the shaft teeth as shown.
Make sure the snap rings are seated Main Shaft
securely in the grooves of the shafts. M4 (24T) M3 (21T) M2 (17T) M1 (12T)
Spline Washer Snap Ring Spline Washer C1 Bushing
C4 (23T) C2 (30T) C1 (34T)
Cam Spring C3 (26T) Countershaft
locating
plate
10-9