Yamaha PG-1 - Page 55

Periodic maintenance and adjustment
7-21
7
5. Install the check hole cap.
6. If the drive chain slack is incorrect,
adjust it as follows. NOTICE: Im-
proper drive chain slack will
overload the engine as well as
other vital parts of the motorcy-
cle and can lead to chain slip-
page or breakage. To prevent
this from occurring, keep the
drive chain slack within the
specified limits.
[ECA10572]
EAUV0462
To adjust the drive chain slack
Consult a Yamaha dealer before ad-
justing the drive chain slack.
1. Loosen the brake pedal free play
adjusting nut and the brake torque
rod nut.
2. Loosen the axle nut, then loosen
the locknut at each end of the
swingarm.
3. To tighten the drive chain, turn the
drive chain slack adjusting nut at
each end of the swingarm in direc-
tion (a). To loosen the drive chain,
turn the adjusting nut at each end
of the swingarm in direction (b),
and then push the rear wheel for-
ward.
TIP
Using the alignment marks on each
side of the swingarm, make sure that
both drive chain pullers are in the same
position for proper wheel alignment.
4. Tighten both locknuts, and then
tighten the axle nut and brake
torque rod nut to their specified
torques.
1. Locknut
2. Drive chain slack adjusting nut
3. Alignment marks
4. Axle nut
5. Brake torque rod nut
3
1
4
2
(a)
(b)
5
1. Locknut
2. Drive chain slack adjusting nut
3. Alignment marks
4. Drive chain puller
Tightening torques:
Locknut:
7 N·m (0.7 kgf·m, 5.2 lb·ft)
Axle nut:
35 N·m (3.5 kgf·m, 26 lb·ft)
Brake torque rod nut:
19 N·m (1.9 kgf·m, 14 lb·ft)
3
4
2
1
(a)
(b)
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