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16
ENGINE
16.4.19 Checking the shift mechanism (125 Duke)
–
Check the shift forks
1
»
If there is damage or wear:
–
Change the shift fork and gear wheel pair.
–
Check shift grooves
of shift drum
B
»
If the shift groove is worn:
–
Change the shift roller.
–
Check the seat of the shift drum in bearings
»
If the shift roller is not seated correctly:
–
Replace the shift drum and/or the bearing.
–
Check bearing
for stiffness and wear.
3
»
If the bearings do not move freely or are worn:
–
Change the bearing.
–
Check shift rail
on a flat surface for run-out.
4
»
If there is run-out:
–
Change the shift rail.
–
Check the shift rail for scoring, signs of corrosion and stiffness in the shift forks.
»
If there is scoring or corrosion, or if the shift fork is stiff:
–
Change the shift rail.
–
Check sliding plate
in contact areas
5
»
If the sliding plate is worn:
–
Change the shift shaft.
–
Check return surface
D
»
If deep notches are present:
–
Change the shift shaft.
–
Check guide pin
for looseness and wear.
E
»
If the guide pin is loose and/or worn:
–
Change the shift shaft.
(see
) for damage and wear (visual check).
A
for wear.
2
.
3
for wear.
C
on the sliding plate for wear.
304513-10
148
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