Yamaha YZ125X 2023, Owner'S Manual

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CHASSIS
3-13
EAM20136
CHASSIS
EAM30479
ADJUSTING THE FRONT DISC BRAKE
TIP
There should be no free play at the brake lever
end.
1. Check:
•
Brake lever position “a”
2. Remove:
• Brake lever cover
3. Adjust:
• Brake lever position
a. Loosen the locknut “1”.
b. Turn the adjusting bolt “2” until the speci-
fied brake lever position is obtained.
c. Tighten the locknut.
WARNING
EWA13050
A soft or spongy feeling in the brake lever
can indicate the presence of air in the brake
system. Before the vehicle is operated, the
air must be removed by bleeding the brake
system. Air in the brake system will consid-
erably reduce braking performance.
NOTICE
ECA13490
After adjusting the brake lever position,
make sure there is no brake drag.
4. Install:
•
Brake lever cover
EAM30480
ADJUSTING THE REAR DISC BRAKE
1. Adjust:
• Brake pedal position
a. Loosen the locknut “1”.
b. Turn the adjusting nut “2” until the brake
pedal is in the correct position.
WARNING
EWA20710
Adjust the pedal height between the maxi-
mum “A” and the minimum “B” as shown. (In
this adjustment, the bolt “3” end “a” should
protrude out of the lower adjusting nut “4”
but not be less than 2.0 mm (0.08 in) “b”
away from the brake pedal “5”).
c. Tighten the locknut to specification.
Brake lever position
100 mm (3.94 in)
Extent of adjustment
86–105 mm (3.39–4.13 in)
Locknut (front brake lever posi-
tion)
5 N·m (0.5 kgf·m, 3.7 lb·ft)
a
G088889
2
1
T
R
.
.
Rear brake pedal adjusting lock-
nut
6 N·m (0.6 kgf·m, 4.4 lb·ft)
2
1
4
3
a
b
3
5
A B
T
R
.
.