brake YAMAHA WR 250F 2003 Service Manual

YAMAHA WR 250F 2003 Service Manual WR 250F 2003 YAMAHA YAMAHA https://www.carmanualsonline.info/img/51/52337/w960_52337-0.png YAMAHA WR 250F 2003 Service Manual

Page 612 of 860

YAMAHA WR 250F 2003 Service Manual 5 - 35
CHASFRONT BRAKE AND REAR BRAKE
BRAKE MASTER CYLINDER DISASSEMBLY
ÈFront
ÉRear
Extent of removal:
1 Front brake master cylinder disassembly
2 Rear brake master cylinder disassembly
Extent of r

Page 616 of 860

YAMAHA WR 250F 2003 Service Manual 5 - 39
CHASFRONT BRAKE AND REAR BRAKE
EC5A3000REMOVAL POINTS
Brake fluid
1. Remove:
[Front]
Brake master cylinder cap 
1 
[Rear]
Brake master cylinder cap 
1 
Protector
NOTE:Do not remove the diaph

Page 618 of 860

YAMAHA WR 250F 2003 Service Manual 5 - 41
CHASFRONT BRAKE AND REAR BRAKE
Brake caliper piston seal kit
1. Remove:
Dust seal 
1 
Piston seal 
2 
NOTE:Remove the piston seals and dust
seals by pushing them with a finger.
CAUTION:
Never

Page 620 of 860

YAMAHA WR 250F 2003 Service Manual 5 - 43
CHASFRONT BRAKE AND REAR BRAKE
Brake caliper
1. Inspect:
Brake caliper cylinder inner
surface 
a 
Wear/score marks 
→ Replace
brake caliper assembly.
È
Front
É
Rear
É È
2. Inspect:
Brak

Page 622 of 860

YAMAHA WR 250F 2003 Service Manual 5 - 45
CHASFRONT BRAKE AND REAR BRAKE
2. Install:
Piston seal 
1 
Dust seal 
2 
WARNING
Always use new piston seals and
dust seals.
NOTE:Fit the piston seals and dust seals
onto the slot on brake ca

Page 624 of 860

YAMAHA WR 250F 2003 Service Manual 5 - 47
CHASFRONT BRAKE AND REAR BRAKE
3. Install:
Brake hose holder 
1 
Brake caliper 
2 
Bolt (brake caliper) 
3 
NOTE:Fit the brake hose holder cut 
a over
the projection 
b on the front fork and

Page 626 of 860

YAMAHA WR 250F 2003 Service Manual 5 - 49
CHASFRONT BRAKE AND REAR BRAKE
Brake master cylinder kit
1. Clean:
Brake master cylinder
Brake master cylinder kit
Clean them with brake fluid.
2. Install:
Brake master cylinder cup 
(primar

Page 628 of 860

YAMAHA WR 250F 2003 Service Manual 5 - 51
CHASFRONT BRAKE AND REAR BRAKE
Front brake master cylinder
1. Install:
Brake master cylinder 
1 
Brake master cylinder bracket
2 
Bolt (brake master cylinder
bracket) 
3 
NOTE:Install the b

Page 630 of 860

YAMAHA WR 250F 2003 Service Manual 5 - 53
CHASFRONT BRAKE AND REAR BRAKE
3. Install:
Spring 
1 
Brake pedal 
2 
O-ring 
3 
Bolt (brake pedal) 
4 
Clip 
5 
NOTE:Apply the lithium soap base grease
on the bolt, O-ring and brake peda

Page 632 of 860

YAMAHA WR 250F 2003 Service Manual 5 - 55
CHASFRONT BRAKE AND REAR BRAKE
3. Pass the brake hose through the
front brake hose guide 
1, then
through the guide 
a on the pro-
tector 
2.
4. Install:
Copper washer 
1 
Brake hose 
2 
Uni
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