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Engine Servicing
4-56
4-56
(1) LEFT CRANKCASE
Crankcase Bearing Replacement
Remove the oil seals and bearing set plates.
Drive out the bearing using the special tools listed on
page 2-7.
Install the new bearing as shown in the illustration using
the special tools listed on page 2-7.
(1) RIGHT CRANKCASE
(1) RIGHT SHIFT FORK
(2) LEFT SHIFT FORK
(3) RIGHT/LEFT SHIFT FORK SHAFT
(4) CENTER SHIFT FORK/SHAFT
(5) SHIFT DRUM
Inspect each part for wear or damage.
Check the following items (specifications; page 2-3).
Spinning gear I.D.
Bushing I.D. and O.D.
Mainshaft and countershaft O.D.
Shift fork I.D. and claw thickness
Shift fork shaft O.D.
Shift drum O.D.
Crankshaft/Transmission Inspection
Measure the crankshaft runout.
Support the crankshaft with V-blocks or a stand and then
measure the runout at the points “C” and “D”.
Service limit: C: 0.05 mm (0.002 in)
D: 0.03 mm (0.001 in)
Measure the connecting rod big end side clearance and
big end axial/radial play (specification; Page 2-3).
8 mm 6 mm
1
1
5
4
3
2
1
HOLD
HOLD
C D
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