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3. Check:
• Transmission gear engagement
(each pinion gear to its respective wheel
gear)
Incorrect → Reassemble the transmission
axle assemblies.
4. Check:
• Transmission gear movement
Rough movement → Replace the defective
part(s).
5. Check:
• Circlips
Bends/damage/looseness → Replace.
EAS29020
ASSEMBLING THE MAIN AXLE AND DRIVE
AXLE
1. Install:
• Toothed washer "1"
• Circlip "2"
New
TIP
• Be sure the circlip sharp-edged corner "a" is
positioned opposite side to the toothed washer
and gear.
• Align the opening between the ends "b" of the
circlip with a groove "c" in the axle.
EAS1S3L041
INSTALLING THE TRANSMISSION
1. Install:
• Drive axle assembly "1"
• Main axle assembly "2"
• Shift fork-L "3"
(to drive axle)
• Shift fork-C "4"
(to main axle)
• Shift fork-R "5"
(to drive axle)
• Shift drum "6"
1
6
3
TIP
The embossed marks on the shift forks should
face towards the right side of the engine and be
in the following sequence: "R", "C", "L". Be sure
that the shift fork cam follower is properly seated
in the shift drum groove.
2. Install:
• Counter axle assembly
TIP
• Engage the concave part "a" of the left crank-
case and convex part "b" of the counter axle.
• Align the top of the reverse wheel gear 1 "c"
and main axle/1st pinion gear "d".
b
a
3. Check:
• Shift operation
Unsmooth operation → Repair.
TIP
• Apply engine oil to each gear and bearing thor-
oughly.
• Before assembling the crankcase, make sure
that the transmission is in neutral and that the
gears turn freely.
5-72
TRANSMISSION
2
4
5
d
c
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