Chassis; Adjusting The Front Disc Brake; Adjusting The Rear Disc Brake - Yamaha YZ125X 2023 Owner's Manual

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"
Brake lever position
100 mm (3.94 in)
Extent of adjustment
86–105 mm (3.39–4.13 in)
G088889
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.
Locknut (front brake lever posi-
tion)
5 N·m (0.5 kgf·m, 3.7 lb·ft)
EWA13050
WARNING
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.
ECA13490
NOTICE
After adjusting the brake lever position,
make sure there is no brake drag.
4. Install:
EAM30480

ADJUSTING THE REAR DISC BRAKE

1. Adjust:
EWA20710
a
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").
2
1
3-13
• Brake lever cover
• Brake pedal position
a. Loosen the locknut "1".
b. Turn the adjusting nut "2" until the brake
pedal is in the correct position.
WARNING
2
1
A
3
4
c. Tighten the locknut to specification.
Rear brake pedal adjusting lock-
nut
6 N·m (0.6 kgf·m, 4.4 lb·ft)

CHASSIS

B
3
b
a
5