brake fluid YAMAHA YZ85 2006 Notices Demploi (in French)

5 - 13
CHAS
EC5A3000
REMOVAL POINTS
Brake fluid
1. Remove:
[Front]

Brake master cylinder cap 1
[Rear]

Reservoir tank cap 1
NOTE:
Do not remove the diaphragm.
ÈFront
ÉRear
È
5PA50290
É
5PA50300
2. Connect the transparent hose 2 to the
bleed screw 1 and place a suitable con-
tainer under its end.
ÈFront
ÉRear
3. Loosen the bleed screw and drain the
brake fluid while pulling the lever in or
pushing down on the pedal.
CAUTION:

Do not reuse the drained brake fluid.

Brake fluid may erode painted surfaces or
plastic parts. Always clean up spilled
fluid immediately.
ÈÉ
5PA50310
Front brake caliper
1. Remove:

Brake caliper 1
NOTE:
Turn the brake caliper counterclockwise and
pull out it from the guide pin 2 on the brake
caliper bracket.
5PA50320
FRONT BRAKE AND REAR BRAKE

5 - 15
CHAS
EC5A4000
INSPECTION
Brake master cylinder
1. Inspect:

Brake master cylinder inner surface a
Wear/scratches → Replace master cylin-
der assembly.
Stains → Clean.
WARNING
Use only new brake fluid.
ÈFront
ÉRear
2. Inspect:

Diaphragm 1
Crack/damage → Replace.
ÈFront
ÉRear
È
É
5PA50370
È
É
5PA50380
3. Inspect: (only front brake master cylinder)

Reservoir float 1
Damage → Replace.
5PA50380
4. Inspect:

Brake master cylinder piston 1

Brake master cylinder cup 2
Wear/damage/score marks → Replace
brake master cylinder kit.
ÈFront
ÉRear
É È
5PA50390
Brake caliper
1. Inspect:

Brake caliper cylinder inner surface a
Wear/score marks → Replace brake cali-
per assembly.
ÈFront
ÉRear
È
5PA50400
É
FRONT BRAKE AND REAR BRAKE

5 - 16
CHAS
2. Inspect:

Brake caliper piston 1
Wear/score marks → Replace brake cali-
per piston assembly.
WARNING
Replace the piston seals and dust seals 2
whenever a caliper is disassembled.
5PA50410
3. Inspect: (only front brake caliper)

Brake caliper bracket 1
Cranks/damage → Replace the brake cali-
per assembly.

Guide pin 2
Rust/damage → Replace the brake caliper
assembly.

Sleeve boot 3

Pin boot 4
Wear/damage → Replace.5PA50420
4. Inspect: (only front brake caliper)

Brake caliper support bolt 1
Scorches/rust/damage → Replace.
5PA50430
EC534301
Brake hose
1. Inspect:

Brake hose 1
Crack/damage → Replace.
5PA50440
EC5A5000
ASSEMBLY AND INSTALLATION
WARNING

All internal parts should be cleaned in
new brake fluid only.

Internal parts should be lubricated with
brake fluid when installed.

Replace the piston seals and dust seals
whenever a caliper is disassembled.
FRONT BRAKE AND REAR BRAKE

5 - 17
CHAS
Brake caliper piston
1. Clean:

Brake caliper

Piston seal

Dust seal

Brake caliper piston
Clean them with brake fluid.
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 caliper correctly.
ÈFront
ÉRear
È
5PA50450
É
5PA50460
3. Install:

Brake caliper piston 1
NOTE:
Apply the brake fluid on the brake caliper pis-
ton wall.
CAUTION:

For the front brake caliper, install the pis-
ton with its shallow depressed side
a
facing the caliper. For the rear brake cali-
per, install the piston with its depressed
side
b facing the brake caliper.

Never force to insert.
ÈFront
ÉRear
È
É
FRONT BRAKE AND REAR BRAKE

5 - 19
CHAS
Rear brake caliper
1. Install:

Pad support 1

Brake pad 2

Pad pin 3
NOTE:

Install the brake pad fitted with brake pad
shim 4 on the brake caliper piston side.

Temporarily tighten the pad pins at this point.5PA50540
2. Install:

Brake caliper 1

Bolt (brake caliper front side) 2

Bolt (brake caliper rear side) 3

Plate

Protector 4

Bolt (protector) 5
3. Tighten

Pad pin 6
Brake master cylinder kit
1. Clean:

Brake master cylinder

Brake master cylinder kit
Clean them with brake fluid.
2. Install:

Brake master cylinder cup (primary) 1

Brake master cylinder cup (secondary) 2
To brake master cylinder piston 3.
NOTE:
Apply the brake fluid on the brake master cylin-
der cup.
WARNING
After installing, cylinder cup should be
installed as shown direction. Wrong instal-
lation cause improper brake performance.
ÈFront
ÉRear
5PA50550
T R..23 Nm (2.3 m · kg, 17 ft · lb)
T R..23 Nm (2.3 m · kg, 17 ft · lb)
T R..10 Nm (1.0 m · kg, 7.2 ft · lb)
T R..18 Nm (1.8 m · kg, 13 ft · lb)
ÈÉ
5PA50560
ÈÉ
5PA50570
FRONT BRAKE AND REAR BRAKE

5 - 20
CHAS
3. Install:

Spring 1
To brake master cylinder piston 2.
NOTE:
Install the spring at the smaller dia. side.
ÈFront
ÉRear
ÈÉ
5PA50580
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
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.
È
5PA50590
É
5PA50600
T R..9 Nm (0.9 m · kg, 6.5 ft · lb)
5PA50610
FRONT BRAKE AND REAR BRAKE

5 - 25
CHAS
Brake fluid
1. Fill:

Brake fluid
Until the fluid level reaches “LOWER” level
line a.
WARNING

Use only the designated quality brake
fluid:
otherwise, the rubber seals may deterio-
rate, causing leakage and poor brake per-
formance.

Refill with the same type of brake fluid;
mixing fluids may result in a harmful
chemical reaction and lead to poor perfor-
mance.

Be careful that water does not enter the
master cylinder when refilling. Water will
significantly lower the boiling point of the
fluid and may result in vapor lock.
CAUTION:
Brake fluid may erode painted surfaces or
plastic parts. Always clean up spilled fluid
immediately.
ÈFront
ÉRear
2. Air bleed:

Brake system
Refer to “BRAKE SYSTEM AIR BLEED-
ING” section in the CHAPTER 3.
Recommended brake fluid:
DOT #4
È
5PA50770
É
5PA50780
3. Inspect:

Brake fluid level
Fluid at lower level → Fill up.
Refer to “BRAKE FLUID LEVEL INSPEC-
TION” section in the CHAPTER 3.
FRONT BRAKE AND REAR BRAKE

5 - 26
CHAS
4. Install:
[Front]

Reservoir float

Diaphragm

Brake master cylinder cap 1

Screw (brake master cylinder cap) 2
[Rear]

Diaphragm

Reservoir tank cap 1

Bolt (reservoir tank) 2
CAUTION:
After installation, while pulling the brake
lever in or pushing down on the brake
pedal, check whether there is any brake
fluid leaking where the union bolts are
installed respectively at the brake master
cylinder and brake caliper.
ÈFront
ÉRear
È
5PA50800
T R..2 Nm (0.2 m · kg, 1.4 ft · lb)
T R..10 Nm (1.0 m · kg, 7.2 ft · lb)É
5PA50810
FRONT BRAKE AND REAR BRAKE