18
ENGINE
161
18.4.19 Checking the shift mechanism
303007-10
–
Check shift forks
1
on disc
A
for damage and wear (visual check).
» If there is damage or wear:
–
Change the shift fork and gear wheel pair.
–
Check shift grooves
B
of shift drum
2
for wear.
» If the shift groove is worn:
–
Change the shift drum.
–
Check the seating of the shift drum in bearings
3
.
» If the shift drum is not correctly seated:
–
Change the shift drum and/or bearings.
–
Check bearings
3
for smooth operation and wear.
» If the bearings are stiff or worn:
–
Change the bearings.
–
Check the shift rollers for damage and wear.
» If there is damage or wear:
–
Change the shift rollers.
–
Check the springs of shift rails
4
for damage and wear.
» If the spring is damaged or worn:
–
Change the spring of the shift rail.
–
Check the shift rails
4
for run-out on a flat surface.
» If there is run-out:
–
Change the shift rail.
–
Check the shift rails for scoring, wear and smooth operation in the shift forks.
» If scoring or wear is present or of the shift fork is stiff:
–
Change the shift rail.
–
Check sliding plate
5
for wear on contact areas
C
.
» If the sliding plate is worn:
–
Change the sliding plate.
–
Check return surface
D
on the sliding plate for wear.
» If there is severe grooving:
–
Change the sliding plate.
–
Check guide bolts
E
for firm seating and wear.
» If the guide bolts are loose or worn:
–
Change the sliding plate.
