3-56 ENGINE
CRANKCASE
GEARSHIFT FORK AND GEARSHIFT CAM
Removal
• Remove the gearshift cam bearing retainer screws 1 and
gearshift fork shaft retainer 2 from the lower crankcase.
• Remove the gearshift fork shafts 3 and gearshift forks 4
from the lower crankcase.
• Remove the gearshift cam 5 and its bearing 6.
GEARSHIFT FORK-TO-GROOVE CLEARANCE
• Using a thickness gauge, check the gearshift fork clearance in
the groove of its gear.
• The clearance for each gearshift fork plays an important role
in the smoothness and positiveness of the shifting action.
Shift fork-to-groove clearance:
Service Limit: 0.5 mm (0.020 in)
09900-20803: Thickness gauge
• If the clearance checked is noted to exceed the limit specified,
replace the fork or its gear, or both.
GEARSHIFT FORK GROOVE WIDTH
• Measure the gearshift fork groove width using the vernier cali-
pers.
Shift fork groove width:
Standard: 5.0 – 5.1 mm (0.197 – 0.201 in)
09900-20102: Vernier calipers
SAMPLE
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