2007 YAMAHA YZ125LC Piston

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Page 390 of 576

YAMAHA YZ125LC 2007  Owners Manual 5-14
CHASFRONT BRAKE AND REAR BRAKE 
EC5A3000
REMOVAL POINTS
EC5A3101
Brake fluid
1. Remove:
[Front]
9Master cylinder cap 1
[Rear]
9Master cylinder cap 1
9Protector
NOTE:
Do not remove the diaphragm.

Page 391 of 576

YAMAHA YZ125LC 2007  Owners Manual 5-14
CHAS
FREIN AVANT ET FREIN ARRIERE
VORDERRADBREMSE UND HINTERRADBREMSE
FRENO ANTERIORE E FRENO POSTERIORE
AUSBAUPUNKTE
Bremsflüssigkeit
1. Ausbauen:
[Vorn]
9Hauptbremszylinderkappe 1
[Hinten]
9Ha

Page 392 of 576

YAMAHA YZ125LC 2007  Owners Manual 5-15
CHASFRONT BRAKE AND REAR BRAKE 
EC533402
Piston seal kit
1. Remove:
9Dust seal 1
9Piston seal 2
NOTE:
Remove the piston seals and dust seals by
pushing them with a finger.
cC
Never attempt to pry

Page 393 of 576

YAMAHA YZ125LC 2007  Owners Manual 5-15
CHAS
FREIN AVANT ET FREIN ARRIERE
VORDERRADBREMSE UND HINTERRADBREMSE
FRENO ANTERIORE E FRENO POSTERIORE
Kolbendichtungseinsatz
1. Ausbauen:
9Staubdichtung 1
9Kolbendichtung 2
HINWEIS:
Die Kolben

Page 394 of 576

YAMAHA YZ125LC 2007  Owners Manual 5-16
CHASFRONT BRAKE AND REAR BRAKE 
4. Inspect:
9Master cylinder piston 1
9Master cylinder cup 2
Wear/Damage/Score marksReplace master
cylinder kit.
AFront
BRear
EC534214
Caliper
1. Inspect:
9Calipe

Page 395 of 576

YAMAHA YZ125LC 2007  Owners Manual 5-16
CHAS
FREAIN AVANT ET FREIN ARRIERE
VORDERRADBREMSE UND HINTERRADBREMSE
FRENO ANTERIORE E FRENO POSTERIORE
4. Prüfen:
9Hauptbremszylinderkolben 1
9Hauptbremszylindermanschet-
te 2
Abnutzung/Besch

Page 396 of 576

YAMAHA YZ125LC 2007  Owners Manual 5-17
CHASFRONT BRAKE AND REAR BRAKE 
EC5A5801
Caliper piston
1. Clean:
9Caliper
9Piston seal
9Dust seal
9Caliper piston
Clean them with brake fluid.
2. Install:
9Piston seal 1
9Dust seal 2
w
Always us

Page 397 of 576

YAMAHA YZ125LC 2007  Owners Manual 5-17
CHAS
FREIN AVANT ET FREIN ARRIERE
VORDERRADBREMSE UND HINTERRADBREMSE
FRENO ANTERIORE E FRENO POSTERIORE
Bremssattelkolben
1. Reinigen:
9Bremssattel
9Kolbendichtung
9Staubdichtung
9Bremssattelkol