washer YAMAHA YZ85 2003 Owner's Guide

5 - 7
CHAS
2. Install:

Brake disc 1

Bolt (brake disc) 2
NOTE:
Tighten the bolts (brake disc) in stage, using a
crisscross pattern.
5PA50160
T R..12 Nm (1.2 m · kg, 8.7 ft · lb)
3. Install:

Rear wheel sprocket 1

Bolt (rear wheel sprocket) 2

Washer (rear wheel sprocket) 3

Nut (rear wheel sprocket) 4
NOTE:
Tighten the nuts (rear wheel sprocket) in
stage, using a crisscross pattern.5PA50170
T R..42 Nm (4.2 m · kg, 30 ft · lb)
4. Install:

Collar 1
NOTE:
Apply the lithium soap base grease on the oil
seal lip.
5PA50180
5. Install:

Wheel
NOTE:
Install the brake disc 1 between the brake
pads 2 correctly.
5PA50190
6. Install:

Drive chain 1
NOTE:
Push the wheel 2 forward and install the drive
chain.
5PA50200
FRONT WHEEL AND REAR WHEEL

5 - 8
CHAS
7. Install:

Right drive chain puller 1

Left drive chain puller 2

Washer 3

Wheel axle 4
NOTE:

Apply the lithium soap base grease on the
wheel axle.

Insert the wheel axle from right side.5PAR0013
8. Install:

Washer 1

Nut (wheel axle) 2
NOTE:
Temporarily tighten the nut (wheel axle) at this
point.
5PAR0014
9. Adjust:

Drive chain slack a
Refer to “DRIVE CHAIN SLACK ADJUST-
MENT” section in the CHAPTER 3.
Drive chain slack:
35 ~ 45 mm (1.4 ~ 1.8 in)
5PA50230
10. Tighten:

Nut (wheel axle) 1

Locknut 2
5PAR0015
T R..90 Nm (9.0 m · kg, 65 ft · lb)
FRONT WHEEL AND REAR WHEEL

5 - 12
CHAS
BRAKE MASTER CYLINDER DISASSEMBLY
5PA50280
ÈFront
ÉRear
Extent of removal:
1 Front brake master cylinder disassembly
2 Rear brake master cylinder disassembly
Extent of removal Order Part name Q’ty Remarks
BRAKE MASTER CYLINDER
DISASSEMBLY
1 Brake master cylinder cap 1
2 Diaphragm 1
3 Brake master cylinder boot 1
4 Circlip 1 Use a long nose circlip pliers.
5 Washer 1
6 Push rod 1
7 Brake master cylinder kit
1
12
21
FRONT BRAKE AND REAR BRAKE

5 - 20
CHAS
4. Install:
[Front]

Brake master cylinder kit 1

Washer 2

Circlip 3

Brake master cylinder boot 4
To brake master cylinder 5.
[Rear]

Brake master cylinder kit 1

Push rod 2

Circlip 3

Brake master cylinder boot 4
To brake master cylinder 5.
NOTE:

Apply the brake fluid on the brake master cyl-
inder kit.

Apply the lithium soap base grease on the tip
of the push rod.

When installing the circlip, use a long nose
circlip pliers.
ÈFront
ÉRear
È
5PA50590
É
5PA50600
Front brake master cylinder
1. Install:

Brake master cylinder 1

Brake master cylinder bracket 2

Bolt (brake master cylinder bracket) 3
NOTE:

Install the bracket so that the arrow mark
a
face upward.

First tighten the bolts on the upper side of the
brake master cylinder bracket, and then
tighten the bolts on the lower side.
T R..9 Nm (0.9 m · kg, 6.5 ft · lb)
5PA50610
FRONT BRAKE AND REAR BRAKE

5 - 21
CHAS
2. Install:

Brake lever 1

Bolt (brake lever) 2

Nut (brake lever) 3
NOTE:
Apply the lithium soap base grease on the
brake lever sliding surface, bolt and contacting
surface of the brake master cylinder piston.
Rear brake master cylinder
1. Install:

Reservoir hose 1

Reservoir tank 2
5PA50620
T R..6 Nm (0.6 m · kg, 4.3 ft · lb)
T R..6 Nm (0.6 m · kg, 4.3 ft · lb)
5PA50630
2. Install:

Brake master cylinder 1

Bolt (brake master cylinder) 2
5PA50640
T R..10 Nm (1.0 m · kg, 7.2 ft · lb)
3. Install:

Brake pedal 1

Spring 2

O-ring 3

Washer 4

Cotter pin 5
NOTE:
Apply the lithium soap base grease on the
brake pedal shaft and O-rings.5PA50650
4. Install:

Pin 1

Washer 2

Cotter pin 3
NOTE:
After installing, check the brake pedal height.
Refer to “REAR BRAKE ADJUSTMENT” sec-
tion in the CHAPTER 3.
5PA50655
FRONT BRAKE AND REAR BRAKE

5 - 22
CHAS
Front brake hose
1. Install:

Copper washer 1

Brake hose 2

Union bolt 3
WARNING
Always use new copper washers.
CAUTION:
Install the brake hose so that its pipe por-
tion a directs as shown and lightly
touches the projection b on the brake
master cylinder.
5PA50660
T R..30 Nm (3.0 m · kg, 22 ft · lb)
5PA50670
2. Install:

Protector 1

Bolt (protector) 2
NOTE:
Fit the brake hose into the guides a of the pro-
tector.
5PA50680
T R..7 Nm (0.7 m · kg, 5.1 ft · lb)
3. Install:

Brake hose holder 1

Bolt (brake hose holder) 2
NOTE:

Align the brake hose holder with the projec-
tion a on the front fork and clamp the brake
hose.

Pass the brake hose behind the rib b on the
front fork.
5PA50690
T R..10 Nm (1.0 m · kg, 7.2 ft · lb)
FRONT BRAKE AND REAR BRAKE

5 - 23
CHAS
4. Install:

Copper washer 1

Brake hose 2

Union bolt 3
WARNING
Always use new copper washers.
CAUTION:
Install the brake hose so that its pipe por-
tion a lightly touches the projection b on
the brake caliper.
5PA50700
5PA50710
T R..26 Nm (2.6 m · kg, 19 ft · lb)
Rear brake hose
1. Install:

Copper washer 1

Brake hose 2

Union bolt 3
WARNING
Always use new copper washers.
CAUTION:
Install the brake hose so that its pipe por-
tion a directs as shown and lightly
touches the projection b on the brake
master cylinder.
5PA50720
5PA50730
T R..26 Nm (2.6 m · kg, 19 ft · lb)
FRONT BRAKE AND REAR BRAKE

5 - 24
CHAS
2. Install:

Copper washer 1

Brake hose 2

Union bolt 3
WARNING
Always use new copper washers.
CAUTION:
Install the brake hose so that its pipe por-
tion a lightly touches the projection b on
the brake caliper.
5PA50740
5PA50750
T R..26 Nm (2.6 m · kg, 19 ft · lb)
3. Install:

Brake hose holder 1

Screw (brake hose holder) 2
5PA50760
T R..1 Nm (0.1 m · kg, 0.7 ft · lb)
FRONT BRAKE AND REAR BRAKE

5 - 28
CHAS
EC558000
FRONT FORK DISASSEMBLY
5PA50830
Extent of removal:
1 Oil seal removal
2 Damper rod removal
Extent of removal Order Part name Q’ty Remarks
FRONT FORK DISASSEMBLY
1 Front fork cap bolt 1 Use special tool.
Refer to “REMOVAL POINTS”.
2 Fork spring 1 Drain the fork oil.
3 Dust seal 1
Refer to “REMOVAL POINTS”.
4 Stopper ring 1
5 Inner tube 1
6 Outer tube 1
7 Piston metal 1
8 Slide metal 1
9 Oil seal washer 1
0 Oil seal 1
A Spring guide 1
B Base valve 1 Use special tool.
C Damper rod 1 Refer to “REMOVAL POINTS”.
1
2
FRONT FORK

5 - 29
CHAS
EC556000
HANDLING NOTE
NOTE:
The front fork requires careful attention. So it is
recommended that the front fork be maintained
at the dealers.
CAUTION:
To prevent an accidental explosion of air,
the following instructions should be
observed:

The front fork with a built-in piston rod
has a very sophisticated internal con-
struction and is particularly sensitive to
foreign material.
Use enough care not to allow any foreign
material to come in when the oil is
replaced or when the front fork is disas-
sembled and reassembled.

Before removing the cap bolts or front
forks, be sure to extract the air from the
air chamber completely.
EC553000
REMOVAL POINTS
Front fork cap bolt
1. Remove:

Front fork cap bolt 1
From the outer tube.
NOTE:
Before removing the front fork from the
machine, loosen the front fork cap bolt.
2. Remove:

Front fork cap bolt 1
NOTE:

Set the rod holder 2 between the locknut 3
and washer 4.

Hold the locknut and remove the front fork
cap bolt.
Rod holder:
YM-01434/90890-01434
5PA50840
5PA50850
FRONT FORK