fuel pump YAMAHA YZF-R1SC 2004 Service Manual

LUBRICATION DIAGRAMS2-30 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CABLE ROUTING2-35 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHAPTER 3
PERIODIC CHECKS AND ADJUSTMENTS
INTRODUCTION3-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PERIODIC MAINTENANCE CHART FOR THE EMISSION
CONTROL SYSTEM3-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
GENERAL MAINTENANCE AND LUBRICATION CHART3-1 . . . . . . . . .
SEATS3-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FUEL TANK3-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
REMOVING THE FUEL TANK 3-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
REMOVING THE FUEL PUMP 3-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
INSTALLING THE FUEL PUMP 3-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
INSTALLING THE FUEL TANK 3-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
COWLINGS3-7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FRONT COWLING AND SIDE COWLINGS 3-7. . . . . . . . . . . . . . . . . . .
REAR COWLING 3-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
REMOVAL 3-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
INSTALLATION 3-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AIR FILTER CASE3-10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ENGINE3-11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ADJUSTING THE VALVE CLEARANCE 3-11. . . . . . . . . . . . . . . . . . . . . .
SYNCHRONIZING THE THROTTLE BODIES 3-17. . . . . . . . . . . . . . . . .
ADJUSTING THE EXHAUST GAS VOLUME 3-19. . . . . . . . . . . . . . . . . .
ADJUSTING THE ENGINE IDLING SPEED 3-21. . . . . . . . . . . . . . . . . . .
ADJUSTING THE THROTTLE CABLE FREE PLAY 3-22. . . . . . . . . . . .
CHECKING THE SPARK PLUGS 3-23. . . . . . . . . . . . . . . . . . . . . . . . . . . .
MEASURING THE COMPRESSION PRESSURE 3-24. . . . . . . . . . . . . .
CHECKING THE ENGINE OIL LEVEL 3-26. . . . . . . . . . . . . . . . . . . . . . . .
CHANGING THE ENGINE OIL 3-28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
MEASURING THE ENGINE OIL PRESSURE 3-29. . . . . . . . . . . . . . . . .
ADJUSTING THE CLUTCH CABLE FREE PLAY 3-31. . . . . . . . . . . . . . .
REPLACING THE AIR FILTER ELEMENT 3-32. . . . . . . . . . . . . . . . . . . .
CHECKING THE FUEL AND BREATHER HOSES 3-33. . . . . . . . . . . . .
CHECKING THE CRANKCASE BREATHER HOSE 3-34. . . . . . . . . . . .
CHECKING THE EXHAUST SYSTEM 3-35. . . . . . . . . . . . . . . . . . . . . . . .
ADJUSTING THE EXUP CABLES 3-36. . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE COOLANT LEVEL 3-37. . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE COOLING SYSTEM 3-38. . . . . . . . . . . . . . . . . . . . . . . .
CHANGING THE COOLANT 3-39. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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CHECKING THE WATER PUMP 6-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ASSEMBLING THE WATER PUMP 6-15. . . . . . . . . . . . . . . . . . . . . . . . . .
CHAPTER 7
FUEL INJECTION SYSTEM
FUEL INJECTION SYSTEM7-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
WIRING DIAGRAM 7-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ECU’S SELF-DIAGNOSTIC FUNCTION 7-4. . . . . . . . . . . . . . . . . . . . . .
SUBSTITUTE CHARACTERISTICS OPERATION CONTROL
(FAIL-SAFE ACTION) 7-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FAIL-SAFE ACTIONS TABLE 7-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TROUBLESHOOTING CHART 7-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DIAGNOSTIC MODE 7-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TROUBLESHOOTING DETAILS 7-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
THROTTLE BODIES7-35 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
INJECTORS 7-37. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE INJECTORS 7-39. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE THROTTLE BODIES 7-39. . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE THROTTLE BODY JOINTS 7-39. . . . . . . . . . . . . . . . . .
CHECKING THE PRESSURE REGULATOR 7-40. . . . . . . . . . . . . . . . . .
CHECKING THE FUEL PUMP AND PRESSURE REGULATOR
OPERATION 7-40. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING AND ADJUSTING THE THROTTLE POSITION
SENSOR 7-41. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING AND ADJUSTING THE SUB-THROTTLE POSITION
SENSOR 7-43. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING AND ADJUSTING THE THERMO WAX 7-45. . . . . . . . . . . .
AIR INDUCTION SYSTEM7-46 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AIR INJECTION 7-46. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AIR CUT-OFF VALVE 7-46. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AIR INDUCTION SYSTEM DIAGRAMS 7-47. . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE AIR INDUCTION SYSTEM 7-48. . . . . . . . . . . . . . . . . .
CHAPTER 8
ELECTRICAL SYSTEM
ELECTRICAL COMPONENTS8-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING SWITCH CONTINUITY8-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE SWITCHES8-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE BULBS AND BULB SOCKETS8-5 . . . . . . . . . . . . . . . . .
TYPES OF BULBS 8-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE CONDITION OF THE BULBS 8-5. . . . . . . . . . . . . . . .
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CHECKING THE CONDITION OF THE BULB SOCKETS 8-6. . . . . . .
CHECKING THE LEDs 8-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
IGNITION SYSTEM8-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CIRCUIT DIAGRAM 8-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TROUBLESHOOTING 8-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ELECTRIC STARTING SYSTEM8-14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CIRCUIT DIAGRAM 8-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
STARTING CIRCUIT CUT-OFF SYSTEM OPERATION 8-15. . . . . . . . .
TROUBLESHOOTING 8-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
STARTER MOTOR8-19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE STARTER MOTOR 8-21. . . . . . . . . . . . . . . . . . . . . . . . .
ASSEMBLING THE STARTER MOTOR 8-22. . . . . . . . . . . . . . . . . . . . . .
CHARGING SYSTEM8-24 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CIRCUIT DIAGRAM 8-24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TROUBLESHOOTING 8-25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LIGHTING SYSTEM8-27 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CIRCUIT DIAGRAM 8-27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TROUBLESHOOTING 8-29. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE LIGHTING SYSTEM 8-31. . . . . . . . . . . . . . . . . . . . . . . .
SIGNALING SYSTEM8-34 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CIRCUIT DIAGRAM 8-34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TROUBLESHOOTING 8-36. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE SIGNALING SYSTEM 8-36. . . . . . . . . . . . . . . . . . . . . .
COOLING SYSTEM8-43 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CIRCUIT DIAGRAM 8-43. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TROUBLESHOOTING 8-45. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FUEL PUMP SYSTEM8-48 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CIRCUIT DIAGRAM 8-48. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FUEL PUMP SYSTEM 8-49. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TROUBLESHOOTING 8-50. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE FUEL PUMP 8-52. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SELF-DIAGNOSIS8-53 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TROUBLESHOOTING 8-54. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHAPTER 9
TROUBLESHOOTING
STARTING FAILURES9-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ENGINE 9-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FUEL SYSTEM 9-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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2-10
ENGINE SPECIFICATIONSSPEC
ItemStandardLimit
Transmission
Transmission type
Primary reduction system
Primary reduction ratio
Secondary reduction system
Secondary reduction ratio
Operation
Gear ratios
1st gear
2nd gear
3rd gear
4nd gear
5th gear
6th gear
Max. main axle runout
Max. drive axle runout
Constant mesh, 6-speed
Spur gear
65 / 43 (1.512)
Chain drive
45 / 17 (2.647)
Left-foot operation
38 / 15 (2.533)
33 / 16 (2.063)
37 / 21 (1.762)
35 / 23 (1.522)
30 / 22 (1.364)
33 / 26 (1.269)























































0.08 mm
(0.0032 in)
0.08 mm
(0.0032 in)
Shifting mechanism
Shift mechanism type
Max. shift fork guide bar bending
Shift drum / Guide bar







0.10 mm
(0.0039 in)
Air filter typeOil coated paper element



Fuel pump
Pump type
Model (manufacturer)
Output pressure
Electrical
5PW (DENSO)
294 kPa (2.94 kg / cm
2, 2.94 bar, 42.6 psi)












Throttle position sensor
Resistance
Output voltage (at idle)
4.9  5.1 kΩ at 20C (68F)
0.63  0.73 V



Throttle bodies
Model (manufacturer)
quantity
Intake vacuum pressure
Throttle cable free play (at the flange
45EIDW (MIKUNI)
2
22 kPa (165 mmHg, 6.4966 inHg)
3  5 mm (0.12  0.20 in)











of the throttle grip)
ID mark
Throttle valve size
5VY1 00 (USA)
5VY5 10 (CAL)
#100







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2-23
TIGHTENING TORQUESSPEC
See NOTE 2 CHASSIS TIGHTENING TORQUES
ItemThreadTighteningRemarksItemsizeNmm
kgft
lbRemarks
Upper bracket and outer tubeM8262.619
Upper bracket and steering stem nutM2811 311.382
Handlebar and outer tubeM8171.712
Handlebar and upper bracketM6131.39
Steering shaft and ring nutM30181.813See NOTE 1
Outer tube and under bracketM8232.317
Main switch and upper bracketM8262.619
Front brake master cylinder cap stopperM41.20.120.9
Front brake hose union boltsM10303.022
Front brake master cylinder and bracketM6131.39
Meter assembly and front cowling stay—1.30.130.9
Headlight and front cowling stay—0.80.080.6
Front cowling and headlight assembly—1.50.151.1
Cover 7, 8 and frameM650.53.6
Under cowling and engineM650.53.6
Windshield and front cowlingM50.40.040.3
Duct and console panelM51.30.130.9
End grip and handlebarM640.42.9
Horn bracket and under bracketM640.42.9
Coolant reservoir tank and frameM650.53.6
Engine mount front (left and right)M10454.533
Engine mount rear upperM10515.137
Engine mount rear underM10515.137
Engine mount rear adjust boltM1670.75.1
Catalyst pipe stay and frameM10444.432
Clutch cable lock nut (engine side)M870.75.1
Main frame and rear frameM10414.130
Throttle cable adjust nut (throttle body side)M650.53.6
Cover 2 and plate—0.80.080.6
Pivot shaft and nutM1810510.576
Connecting rod and frameM10444.432
Relay arm and connecting rodM10444.432
Relay arm and swingarmM10444.432
Rear shock absorber and relay armM10444.432
Rear shock absorber and upper bracketM10444.432
Upper bracket and frameM14929.267
Seal guardM670.75.1
Drive chain caseM670.75.1
Chain puller adjust nutM8161.612
Fuel tank and fuel pump assemblyM540.42.9
Fuel tank stay (front side) and frameM670.75.1
Fuel tank and fuel tank stay (front side)M670.75.1
Fuel tank stay (rear side) and rear frameM670.75.1
Side cover and fuel tankM50.40.040.3
Rider seat and frameM670.75.1
Seat lock plate and rear frameM6101.07
Side cover (rear side) and frameM540.42.9
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2-41
C Fold back the clamp and secure
it after passing the lead through
the clamp.
D To the EXUP servo motor
E Pass the coolant reservoir tank
drain hose and fuel tank drain
hose through the clamp from the
outer side of the water pump inlet
pipe after routing it behind the
water pump breather hose.
The lengths of two hose ends are
allowed to be random. Any direc-
tion of cut edges can be ac-
cepted. (Only for the fuel tank
drain hose)
F Clamp the fuel tank drain hose
and fuel tank breather hose.A Clamp the leads so that they are
positioned inner of the vehicle
than the washer position after
routing them between the frame
and radiator stay. Align the clamp
position with the taping sections
of leads. Point the tip of the clamp
(surplus section) to the down
front side of the vehicle.
What the clamp fastens at this
stage are the handlebar switch
and main switch leads.
B Pass the main switch lead and
left handlebar switch lead be-
tween the frame and the heat
protector.
CABLE ROUTINGSPEC
1Heat protector
2Main switch lead
3Left handlebar switch lead
4EXUP servo motor lead
5Coolant reservoir tank drain hose
6Fuel tank drain hose
7Coolant outlet pipe
8Sidestand switch lead
9Oil level switch lead
10A.C.magneto lead
11Fuse box stay
12Water hose
13Stay 1
14Chain case cover
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2-44
K Pass the water hose lower side
of the thermostat, and between
the ground lead and the neutral
switch.
L Install the leads so that the en-
gine ground lead is positioned
lower and the battery negative
lead to be upper. Install the pro-
trusion of each lead to be above
the vehicle.
M Route the crankshaft position
sensor lead under the wire har-
ness.
N To the fuel pump
O Clamp the wire harness winding
in and insert it to the frame hole.A Pass the wire harness through
the clamp inserted to the radiator
stay.
B To the headlight lead
C Clamp the lead between three
protrusions of the pipe (the first
and second parts from the ve-
hicle front). Point the tip of the
clamp (excessive part) to the in-
side of the vehicle.
D To the vehicle right side diagram
E To the engine
F Clamp the lead between three
protrusions of the pipe (the in-
side and outside of the vehicle).G Point the tip of the clamp (exces-
sive part) to the inside of the ve-
hicle.
H All hoses and leads should be
routed over the vehicle’s upper
side above the heat protector.
I To the starter motor
J Fasten the wire harness, clank
shaft position sensor lead, rear
brake light switch lead and
speed sensor lead with a clamp.
Then, point the tip of the clamp
(cut the tip of the clamp leaving 2
to 4 mm (0.08 to 0.16 in).) to the
inside of the vehicle.
CABLE ROUTINGSPEC
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2-48
a Fuel piping connector attach-
ment directions. (fuel pump side)
1. Insert the connector until the
click sound is heard and check
that the connector does not
come off. Make sure that no for-
eign matter is caught in the seal-
ing section. (It is prohibited to
wear the cotton work gloves or
equivalent coverings.)
G This part works as a dropout
stopper.
2. After Item 1 mentioned above is
finished, check that the clamp is
inserted from the down side, and
, and -sections are per-
fectly equipped.
ABC
A Install the lip of O-ring facing up-
ward.
B Install the part pointing the white
paint part of the hose to the left
side of the vehicle.
C Any direction of the clip grip can
be accepted.
D Install the clip grip as specified in
the drawing.
E Install the part pointing the white
paint part of the hose to the left
side of the vehicle.
F Point the clip grip to the left side
of the vehicle.
CABLE ROUTINGSPEC
1Fuel tank
2O-ring
3Fuel tank drain hose
4Fuel tank breather hose
5Clip
6Air filter stay
7Fuel hose 2
83 way connector
9Pipe
10Fuel tank bracket
11Fuel hose clamp
12Fuel hose 1
13Fuel pump assembly
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3-4
Order Job / Part Q’ty Remarks
1
2
3
4
5
6
7
8
9
10
11Removing the fuel tank
Rider sear
Fuel tank side cover
Fuel hose connector cover
Fuel hose
Fuel return hose
Fuel sender coupler
Fuel pump coupler
Fuel tank over flow hose
Fuel tank breather hose
Fuel tank
Fuel tank cover
Fuel pump2
1
1
1
1
1
1
1
1
1
1Remove the parts in the order listed.
Refer to “SEATS”.
Disconnect.
Disconnect.
Disconnect.
Disconnect.
Disconnect.
Disconnect.
Disconnect.
For installation, reverse the removal
procedure.
10 Nm (1.0 m
kg, 7.2 ft
lb)
10 Nm (1.0 m
kg, 7.2 ft
lb)
4 Nm (0.4 m
kg, 2.9 ft
lb)
4 Nm (0.4 m
kg, 2.9 ft
lb)
FUEL TANK
CHK
ADJ
EAS00040
FUEL TANK
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3-5
FUEL TANK
CHK
ADJ
CAUTION:
NOTE:
NOTE:
CAUTION:
REMOVING THE FUEL TANK
1. Extract the fuel in the fuel tank through the
fuel tank cap with a pump.
2. Remove:

fuel hose connector cover

fuel return hose

fuel hose

fuel sender coupler

fuel pump coupler

fuel tank breather hose

fuel tank over flow hose
Although the fuel has been removed from
the fuel tank, be careful when removing the
fuel hoses, since there may be fuel remain-
ing in it.
Before removing the hoses, place a few rags in
the area under where it will be removed.
3. Remove:

fuel tank
Do not set the fuel tank down so that the installa-
tion surface of the fuel pump is directly under the
tank. Be sure to lean the fuel tank in an upright
position.
REMOVING THE FUEL PUMP
1. Remove:

fuel pump

Do not drop the fuel pump or give it a
strong shock.

Do not touch the base section of the fuel
sender.
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