3.ENGINE
3-11
1
“
1
-
2
”
2
1
2
TIP
After installing the left crankcase
，
make sure that the timing chain is securely meshed with the crankshaft
sprocket.
7.Tighten
：
·Crankcase bolts
TIP
Thoroughly wipe off any sealant that protrudes from
between the left crankcase and the right crankcase.
·Tighten the crankcase bolts in stages and in a
crisscross pattern.
·M6×50mm bolts“1-2”
REMOVING THE TRANSMISSION
1.Remove
：
·Shaft fork guide bar“1”
·Shift drum”2”
·Shift fork“3”
·Transmission“4”
CHECKING THE SHIFT FORK
The follow procedure applies to all the shift forks.
1.Check
·Shift fork cam follower“1”
·Shift fork pawl“2”
Bends/damage/scoring/wear→Replace the shift fork.
2.Check
·Shift fork guide bar
Roll the shift fork guide bar on a flat surface.
Bends →Replace .
△
WARING
Do not attempt to straighten a bent shift fork guide bar.
3.Check
：
·Shift fork movement
（
along the shift fork guide bar
）
Rough movement→Replace the shift forks and shaft
fork guide bar as a set.
CHECKING THE SHIFT DRUM
4.Check
：
·Shift drum groove
Damage/scratches/wear→Replace the shift drum assembly.
CHECKING THE TRANSMISSION
1.Check
：
·Transmission gears
Blue discoloration/pitting/wear→Replace the defective gear
（
s
）
.
·Transmission gear
2.Check
：
·Transmission gear engagement
（
each pinion gear to its respective wheel gear
）
Incorrect→Reassemble the transmission axle assemblies.
3.Check
：
·Transmission gear movement
Rough movement→Replace the defective part
（
s
）
