Yamaha 2009 YZF-R1 (Y) User Manual

PERIODIC MAINTENANCE
3-18
TIP
Bleeding order of the front hydraulic brake sys-
tem is the following order:
• Front brake master cylinder
• Front brake calipers
d. Place the other end of the hose into a con-
tainer.
e. Slowly apply the brake several times.
f. Fully pull the brake lever or fully press
down the brake pedal and hold it in posi-
tion.
g. Loosen the bleed screw.
TIP
Loosening the bleed screw will release the
pressure and cause the brake lever to contact
the throttle grip or the brake pedal to fully
extend.
h. Tighten the bleed screw and then release
the brake lever or brake pedal.
i. Repeat steps (e) to (h) until all of the air
bubbles have disappeared from the brake
fluid in the plastic hose.
j. Tighten the bleed screw to specification.
k. Fill the brake fluid reservoir to the proper
level with the recommended brake fluid.
Refer to “CHECKING THE BRAKE FLUID
LEVEL” on page 3-15.
WARNING
EWA13110
After bleeding the hydraulic brake system,
check the brake operation.
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EAS21280
CHECKING THE FRONT BRAKE HOSES
The following procedure applies to all of the
brake hoses and brake hose clamps.
1. Check:
• Brake hose “1”
Cracks/damage/wear → Replace.
2. Check:
• Brake hose clamp “2”
Loose → Tighten the clamp bolt.
3. Hold the vehicle upright and apply the
brake several times.
4. Check:
• Brake hose
Brake fluid leakage → Replace the dam-
aged hose.
Refer to “FRONT BRAKE” on page 4-30.
A. Front brake master cylinder
B. Front brake caliper
C. Rear brake caliper
Brake caliper bleed screw
5 Nm (0.5 m·kgf, 3.6 ft·lbf)
Master cylinder bleed screw
6 Nm (0.6 m·kgf, 4.3 ft·lbf)

Yamaha 2009 YZF-R1 (Y) Specifications

General

Bore x Stroke	78.0 mm x 52.2 mm
Compression Ratio	12.7:1
Fuel System	Fuel injection with YCC-T and YCC-I
Ignition	TCI: Transistor Controlled Ignition
Transmission	6-speed w/multiplate slipper clutch
Final Drive	Chain
Front Tire	120/70-ZR17
Rear Tire	190/55-ZR17
Seat Height	835 mm
Wet Weight	206 kg
Engine Type	Liquid-cooled, 4-stroke, DOHC, inline 4-cylinder
Front Suspension	43 mm inverted fork, fully adjustable
Rear Suspension	Single shock, fully adjustable
Front Brakes	Dual 310 mm discs, radial-mount 6-piston calipers
Rear Brakes	220 mm disc, single-piston caliper
Dimensions (L x W x H)	2, 070 mm x 715 mm x 1, 130 mm
Wheelbase	1415 mm
Fuel Capacity	18 L