PERIODIC MAINTENANCE AND ADJUSTMENT
6-19
2
3
4
5
6
7
8
9
3. Note the position of the drive belt
with a force of 45 N (4.5 kgf, 10 lbf)
applied to the belt with a belt ten-
sion gauge as shown.
TIP
A belt tension gauge is available at a
Yamaha dealer.
4. Calculate the drive belt slack by
subtracting the measurement not-
ed in step 2 from the measurement
noted in step 3.
5. If the drive belt slack is incorrect,
adjust it as follows.
EAU47091
To adjust the drive belt slack
1. Loosen the axle nut.
2. Loosen the locknut on each side of
the swingarm.
3. To tighten the drive belt, turn the
adjusting nut on each side of the
swingarm in direction (a). To loos-
en the drive belt, turn the adjusting
nut on each side of the swingarm
in direction (b), and then push the
rear wheel forward.
NOTICE:
Im-
proper drive belt slack will over-
load the engine. Keep the drive
belt slack within the specified
range.
[ECA10881]
1. Drive belt
2. Marks
3. Drive belt slack
1
2
3
1. Belt tension gauge
Drive belt slack:
3.0–5.0 mm (0.12–0.20 in)
1
1. Alignment marks
2. Axle nut
3. Adjusting nut
4. Locknut
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