Yamaha 2009 YZF-R1 (Y) User Manual

ELECTRICAL COMPONENTS
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b. Turn the main switch to “ON” and engine
stop switch to “ ”.
c. Measure the ignition spark gap “a”.
d. Crank the engine by pushing the start
switch “ ” and gradually increase the
spark gap until a misfire occurs.
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EAS28120
CHECKING THE CRANKSHAFT POSITION
SENSOR
1. Disconnect:
• Crankshaft position sensor coupler
(from the wire harness)
2. Check:
• Crankshaft position sensor resistance
Out of specification → Replace the crank-
shaft position sensor.
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a. Connect the pocket tester (Ω × 100) to the
crankshaft position sensor coupler as
shown.
b. Measure the crankshaft position sensor
resistance.
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EAS28130
CHECKING THE LEAN ANGLE SENSOR
1. Remove:
• Lean angle sensor
(from the battery box 2)
2. Check:
• Lean angle sensor out put voltage
Out of specification → Replace.
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a. Connect the test harness-lean angle sen-
sor (6P) “1” to the lean angle sensor and
wire harness as shown.
b. Connect the pocket tester (DC 20 V) to the
test harness-lean angle sensor (6P).
2. Ignition coil
Crankshaft position sensor
resistance
248–372 Ω at 20 °C (68 °F)
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
• Positive tester probe
Gray “1”
• Negative tester probe
Black “2”
Lean angle sensor output volt-
age
Less than 45°: 0.4–1.4 V
More than 45°: 3.7–4.4 V
Pocket tester
90890-03112
Analog pocket tester
YU-03112-C
Test harness-lean angle sensor
(6P)
90890-03209
YU-03209
• Positive tester probe
Yellow/Green (wire harness color)
• Negative tester probe
Black/Blue (wire harness color)

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