2004 YAMAHA YZF-R1SC brake fluid

4-40
FRONT AND REAR BRAKESCHAS
WARNING
35 Nm (3.5 m
kg, 25 ft
lb)
30 Nm (3.0 m
kg, 22 ft
lb)
6 Nm (0.6 m
kg, 4.3 ft
lb)
WARNING
CAUTION:
EAS00640
ASSEMBLING AND INSTALLING THE
FRONT BRAKE CALIPERS
The following procedure applies to both of the
brake calipers.

Before installation, all internal brake com-
ponents should be cleaned and lubricated
with clean or new brake fluid.

Never use solvents on internal brake com-
ponents as they will cause the piston seals
to swell and distort.

Whenever a brake caliper is disassembled,
replace the brake caliper piston seals.
Recommended brake fluid
DOT 4
1. Install :

brake pads

brake pad spring

brake pad pin
2. Install:

brake caliper
1

copper washers New

brake hose
2

union bolt 3

brake hose holder
Proper brake hose routing is essential to in-
sure safe motorcycle operation. Refer to
“CABLE ROUTING”.
When installing the brake hose onto the
brake caliper
1, make sure the brake pipe a
touches the projection b on the brake cali-
per.
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4-41
FRONT AND REAR BRAKESCHAS
WARNING
CAUTION:
3. Fill:

brake fluid reservoir
(with the specified amount of the recom-
mended brake fluid)
Recommended brake fluid
DOT 4

Use only the designated brake fluid. Other
brake fluids may cause the rubber seals to
deteriorate, causing leakage and poor
brake performance.

Refill with the same type of brake fluid that
is already in the system. Mixing brake
fluids may result in a harmful chemical
reaction, leading to poor brake perfor-
mance.

When refilling, be careful that water does
not enter the brake fluid reservoir. Water
will significantly lower the boiling point of
the brake fluid and could cause vapor lock.
Brake fluid may damage painted surfaces
and plastic parts. Therefore, always clean
up any spilt brake fluid immediately.
4. Bleed:

brake system
Refer to “BLEEDING THE HYDRAULIC
BRAKE SYSTEM“ in chapter 3.
5. Check:

brake fluid level
Below the minimum level mark
a
Add the
recommended brake fluid to the proper level.
Refer to ”CHECKING THE BRAKE FLUID
LEVEL“ in chapter 3.
6. Check:

brake lever operation
Soft or spongy feeling
Bleed the brake
system.
Refer to ”BLEEDING THE HYDRAULIC
BRAKE SYSTEM“ in chapter 3.
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4-42
FRONT AND REAR BRAKESCHAS
WARNING
27 Nm (2.7 m
kg, 20 ft
lb)
22 Nm (2.2 m
kg, 16 ft
lb)
30 Nm (3.0 m
kg, 22 ft
lb)
WARNING
CAUTION:
EAS00642
ASSEMBLING AND INSTALLING THE REAR
BRAKE CALIPER

Before installation, all internal brake com-
ponents should be cleaned and lubricated
with clean or new brake fluid.

Never use solvents on internal brake com-
ponents as they will cause the piston seals
to swell and distort.

Whenever a brake caliper is disassembled,
replace the brake caliper piston seals.
Recommended brake fluid
DOT 4
1. Install:

brake caliper
1
(front)
(rear)

brake pad pin

screw plug

copper washers
New

brake hose
2

union bolt 3
Proper brake hose routing is essential to in-
sure safe motorcycle operation. Refer to
“CABLE ROUTING”.
When installing the brake hose onto the
brake caliper
1, make sure the brake pipe a
touches the projection b on the brake cali-
per.
ProCarManuals.com

4-43
FRONT AND REAR BRAKESCHAS
WARNING
CAUTION:
2. Fill:

brake fluid reservoir
(with the specified amount of the recom-
mended brake fluid)
Recommended brake fluid
DOT 4

Use only the designated brake fluid. Other
brake fluids may cause the rubber seals to
deteriorate, causing leakage and poor
brake performance.

Refill with the same type of brake fluid that
is already in the system. Mixing brake
fluids may result in a harmful chemical
reaction, leading to poor brake perfor-
mance.

When refilling, be careful that water does
not enter the brake fluid reservoir. Water
will significantly lower the boiling point of
the brake fluid and could cause vapor lock.
Brake fluid may damage painted surfaces
and plastic parts. Therefore, always clean
up any spilt brake fluid immediately.
3. Bleed:

brake system
Refer to “BLEEDING THE HYDRAULIC
BRAKE SYSTEM” in chapter 3.
4. Check:

brake fluid level
Below the minimum level mark
a
Add the
recommended brake fluid to the proper level.
Refer to “CHECKING THE BRAKE FLUID
LEVEL” in chapter 3.
5. Check:

brake pedal operation
Soft or spongy feeling
Bleed the brake
system.
Refer to “BLEEDING THE HYDRAULIC
BRAKE SYSTEM” in chapter 3.
ProCarManuals.com

4-56
Order Job / Part Q’ty Remarks
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15Removing the handlebars
Front cowling and side cowling
Left grip end
Handlebar grip
Clutch switch connector
Left handlebar switch
Clutch cable
Clutch lever
Right grip end
Throttle cable housing
Throttle cable
Throttle grip
Front brake light switch connector
Right handlebar switch
Clutch cable holder
Brake fluid reservoir tank
Brake master cylinder bracket1
1
2
1
1
1
1
1
2
1
2
1
1
1
1Remove the parts in the order listed.
Refer to “COWLINGS” in chapter 3.
Disconnect.
Disconnect.
113 Nm (11.3 m
kg, 82 ft
lb)
17 Nm (1.7 m
kg, 12 ft
lb)
11 Nm (1.1 m
kg, 8.0 ft
lb)
23 Nm (2.3 m
kg, 17 ft
lb)
13 Nm (1.3 m
kg, 9.4 ft
lb)
23 Nm (2.3 m
kg, 17 ft
lb)3.8 Nm (0.38 m
kg, 2.7 ft
lb)
3.8 Nm (0.38 m
kg, 2.7 ft
lb)
3.8 Nm (0.38 m
kg, 2.7 ft
lb)
13 Nm (1.3 m
kg, 9.4 ft
lb)
26 Nm (2.6 m
kg, 19 ft
lb)
17 Nm (1.7 m
kg, 12 ft
lb)
HANDLEBARSCHAS
EAS00665
HANDLEBARS
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9-4
OVERHEATING / OVERCOOLING /
POOR BRAKING PERFORMANCETRBL
SHTG
FUEL SYSTEM
Throttle body (-ies)

Damaged or loose throttle body joint
Air filter

Clogged air filter element
CHASSIS
Brake(s)

Dragging brake
ELECTRICAL SYSTEMS
Spark plug(s)

Incorrect spark plug gap

Incorrect spark plug heat range
Ignition system

Faulty E.C.U.

Loose union bolt

Damaged brake hose

Oil or grease on the brake disc

Oil or grease on the brake pad

Incorrect brake fluid level
EAS00855
OVERHEATING
ENGINE
Clogged coolant passages

Cylinder head(s) and piston(s)

Heavy carbon buildup
Engine oil

Incorrect oil level

Incorrect oil viscosity

Inferior oil quality
COOLING SYSTEM
Coolant

Low coolant level
Radiator

Damaged or leaking radiator

Faulty radiator cap

Bent or damaged radiator fin
Water pump

Damaged or faulty water pump

Thermostat

Thermostat stays closed

Oil cooler

Clogged or damaged oil cooler

Hose(s) and pipe(s)

Damaged hose

Improperly connected hose

Damaged pipe

Improperly connected pipe
EAS00856
OVERCOOLING
COOLING SYSTEM
Thermostat

Thermostat stays open
EAS00857
POOR BRAKING PERFORMANCE

Worn brake pad

Worn brake disc

Air in hydraulic brake system

Leaking brake fluid

Faulty brake caliper kit

Faulty brake caliper seal
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