YAMAHA YZF-R7 1999 Owners Manual

7 - 11
CHAS
REAR WHEEL, BRAKE DISC, AND REAR WHEEL
SPROCKET
Order Job/Part Q’ty Remarks
Disassembling the rear wheelRemove the parts in the order listed.
1 Spacer 1
2 Bearing 1
3 Spacer 1
4 Oil seal 1
5 Circlip 1
6 Bearing 1
For assembly, reverse the disassembly
procedure.

7 - 12
CHAS
REAR WHEEL, BRAKE DISC, AND REAR WHEEL
SPROCKET
EB701100
REMOVING THE REAR WHEEL
1. Stand the motorcycle on a level surface.
WARNINGWARNING
Securely support the motorcycle so that
there is no danger of it falling over.
NOTE:
Place the motorcycle on a suitable stand
so that the rear wheel is elevated.
2. Remove:
• brake caliper
NOTE:
Do not depress the brake pedal when
removing the brake caliper.
3. Remove:
• wheel axle nut
• washer
• wheel axle
• rear wheel
NOTE:
Push the rear wheel forward and
remove the drive chain from the rear
wheel sprocket.
EB701400
CHECKING THE REAR WHEEL
1. Check:
• wheel axle
• rear wheel
• wheel bearings
• oil seals
• brake disc
Refer to “FRONT WHEEL”.
2. Check:
• tire
• rear wheel
Damage/wear ® Replace.
Refer to “CHECKING THE TIRES” and
“CHECKING THE WHEELS” in chapter 3.

7 - 13
CHAS
REAR WHEEL, BRAKE DISC, AND REAR WHEEL
SPROCKET
3. Measure:
• radial wheel runout
• lateral wheel runout
Refer to “FRONT WHEEL”.
Over the specified limits ® Replace.
Max. radial wheel runout
1.0 mm (0.04 in)
Max. lateral wheel runout
0.5 mm (0.02 in)
EB701430
CHECKING THE REAR WHEEL DRIVE HUB
1. Check:
• rear wheel drive hub 1
Cracks/damage ® Replace.
• rear wheel drive hub dampers 2
Damage/wear ® Replace.
EB701440
CHECKING AND REPLACING THE REAR
WHEEL SPROCKET
1. Check:
• rear wheel sprocket
More than 1/4 tooth a wear ® Replace
the rear wheel sprocket.
Bent teeth ® Replace the rear wheel
sprocket.
b
Correct
1Drive chain roller
2Rear wheel sprocket
2. Replace:
• rear wheel sprocket
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a. Remove the self-locking nuts and the
rear wheel sprocket.
b. Clean the rear wheel drive hub with a
clean cloth, especially the surfaces
that contact the sprocket.
c. Install the new rear wheel sprocket.
NOTE:
Tighten the self-locking nuts in stages
and in a crisscross pattern.
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T R..
Rear wheel sprocket self-lock-
ing nut
150 Nm (15.0 m • kg, 110 ft • lb)

7 - 14
CHAS
REAR WHEEL, BRAKE DISC, AND REAR WHEEL
SPROCKET
EB701710
INSTALLING THE REAR WHEEL
1. Lubricate:
• wheel axle
• wheel bearings
• oil seal lips
Recommended lubricant
Lithium soap base grease
2. Adjust:
• drive chain slack a
Refer to “ADJUSTING THE DRIVE
CHAIN SLACK” in chapter 3.
Drive chain slack
40 ~ 50 mm (1.57 ~ 1.97 in)
3. Tighten:
• wheel axle
• wheel axle nut
• brake caliper bolts
WARNINGWARNING
Make sure that the brake hose is routed
properly.
EB701900
ADJUSTING THE REAR WHEEL STATIC
BALANCE
NOTE:
• After replacing the tire, wheel or both,
the rear wheel static balance should be
adjusted.
• Adjust the rear wheel static balance
with the brake disc and rear wheel
drive hub installed.
1. Adjust:
• rear wheel static balance
Refer to “FRONT WHEEL”.
T R..150 Nm (15.0 m · kg, 110 ft · lb)
T R..45 Nm (4.5 m · kg, 32 ft · lb)
T R..40 Nm (4.0 m · kg, 29 ft · lb)

7 - 15
CHASFRONT AND REAR BRAKES
EB702001
FRONT AND REAR BRAKES
Order Job/Part Q’ty Remarks
Removing the front brake padsRemove the parts in the order listed.
The following procedure applies to
both of the front brake calipers.
1 Brake pad clip 2
2 Brake pad pin 1
3 Brake pad spring 1
4 Brake pad 2
5 Brake pad shim 2
6 Bleed screw 1
For installation, reverse the removal
procedure.

7 - 16
CHASFRONT AND REAR BRAKES
EB702002
Order Job/Part Q’ty Remarks
Removing the rear brake padsRemove the parts in the order listed.
1 Brake pad clip 4
2 Brake pad pin 2
3 Brake pad spring 1
4 Brake pad 2
5 Brake pad shim 2
6 Bleed screw 2
For installation, reverse the removal
procedure.

7 - 17
CHASFRONT AND REAR BRAKES
EB702100
ACHTUNG:CAUTION:
Disc brake components rarely require
disassembly.
Therefore, always follow these preven-
tive measures:
• Never disassemble brake components
unless absolutely necessary.
• If any connection on the hydraulic
brake system is disconnected, the
entire brake system must be disas-
sembled, drained, cleaned, properly
filled, and bled after reassembly.
• Never use solvents on internal brake
components.
• Use only clean or new brake fluid for
cleaning brake components.
• Brake fluid may damage painted sur-
faces and plastic parts. Therefore,
always clean up any spilt brake fluid
immediately.
• Avoid brake fluid coming into contact
with the eyes as it can cause serious
injury.
First aid for brake fluid entering the
eyes:
• Flush with water for 15 minutes and
get immediate medical attention.
EB702112
REPLACING THE FRONT BRAKE PADS
The following procedure applies to both
brake calipers.
NOTE:
When replacing the brake pads, it is not
necessary to disconnect the brake hose
or disassemble the brake caliper.
1. Remove:
• brake hose holder 1
• brake caliper 2
1
1

2

2

7 - 18
CHASFRONT AND REAR BRAKES
2. Remove:
• brake pad clips 1
• brake pad pin 2
• brake pad spring 3
• brake pads
(along with the brake pad shims)
3. Measure:
• brake pad wear limit a
Out of specification ® Replace the
brake pads as a set.
Brake pad wear limit
0.5 mm (0.02 in)
4. Install:
• brake pad shims
(onto the brake pads)
• brake pads
• brake pad spring
NOTE:
Always install new brake pads, brake
pad shims, and a brake pad spring as a
set.
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a. Connect a clear plastic hose 1 tightly
to the bleed screw 2. Put the other
end of the hose into an open con-
tainer.
b. Loosen the bleed screw and push the
brake caliper pistons into the brake
caliper with your finger.
c. Tighten the bleed screw.
d. Install a new brake pad shim onto
each new brake pads.
e. Install new brake pads and a new
brake pad spring.
NOTE:
The arrow a on the brake pad spring
must point in the direction of disc rota-
tion.
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T R..
Bleed screw
6 Nm (0.6 m • kg, 4.3 ft • lb)

7 - 19
CHASFRONT AND REAR BRAKES
5. Install:
• brake pad pin
• brake pad clips
• brake caliper
T R..40 Nm (4.0 m · kg, 2.9 ft · lb)
6. 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.
7. Check:
• brake lever operation
Soft or spongy feeling ® Bleed the
brake system.
Refer to “BLEEDING THE HYDRAULIC
BRAKE SYSTEM” in chapter 3.
EB702113
REPLACING THE REAR BRAKE PADS
NOTE:
When replacing the brake pads, it is not
necessary to disconnect the brake hose
or disassemble the brake caliper.
1. Remove:
• brake caliper 1
2. Remove:
• brake pad clips 1
• brake pad pins 2
• brake pad spring 3
• brake pads
(along with the brake pad shims)

7 - 20
CHASFRONT AND REAR BRAKES
3. Measure:
• brake pad wear limit a
Out of specification ® Replace the
brake pads as a set.
Brake pad wear limit
0.5 mm (0.02 in)
4. Install:
• brake pad shims
(onto the brake pads)
• brake pads
• brake pad spring
NOTE:
Always install new brake pads, brake
pad shims, and a brake pad spring as a
set.
t t t t t t t t t t t t t t t t t t t t t t t t t t t
a. Connect a clear plastic hose 1 tightly
to the bleed screw 2. Put the other
end of the hose into an open con-
tainer.
b. Loosen the bleed screw and push the
brake caliper pistons into the brake
caliper with your finger.
c. Tighten the bleed screw.
d. Install a new brake pad shim onto
each new brake pad.
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T R..
Bleed screw
6 Nm (0.6 m • kg, 4.3 ft • lb)