check engine YAMAHA YZF-R1SC 2004 Owner's Guide

5-41
STARTER CLUTCH AND GENERATORENG
NOTE:
NOTE:
10 Nm (1.0 m
kg, 7.2 ft
lb)
INSTALLING THE STARTER CLUTCH
1. Install:

generator rotor
1

damper 2

driven gear 3

The hole side of the damper is installed to the
generator side.

Lubricate the engine oil
4.
2. Install:

starter clutch drive gear
1

collar 2

washer 3
Refer to “CHECKING THE STARTER
CLUTCH”.
3. Install:

washer
1

O-ring 2 New

spacer
3
Lubricate the engine oil to O-ring.
INSTALLING THE GENERATOR
1. Install:

idle gear shaft

idle gear
1

washer

idle gear shaft bolt
2
LOCTITE
2. Install:

generator rotor and starter clutch assembly
1
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5-54
CLUTCHENG
NOTE:
EAS00286
CHECKING THE PRESSURE PLATE
1. Check:

pressure plate
1
Cracks / damage
Replace.

bearing
2
Damage / wear
Replace.
EAS00287
CHECKING THE PULL LEVER SHAFT AND
PULL ROD
1. Check:

pull lever shaft pinion gear teeth
1

pull rod teeth 2
Damage / wear
Replace the pull rod and
pull lever shaft pinion gear as a set.
2. Check:

pull rod bearing
Damage / wear
Replace.
INSTALLING THE CLUTCH
1. Install:

clutch damper spring seat
1

clutch damper spring 2
2. Install:

friction plate 3
1

clutch plate 2 2
Lubricate the engine oil.
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5-68
OIL PAN AND OIL PUMPENG
EAS00367
CHECKING THE OIL DELIVERY PIPE AND
OIL PIPE
1. Check:

oil delivery pipe
1

oil pipe 2
Damage
Replace.
Obstruction
Wash and blow out with com-
pressed air.
EAS00368
CHECKING THE OIL STRAINER
1. Check:

oil strainer
1
Damage
Replace.
Contaminants
Clean with solvent.
EAS00373
CHECKING THE OIL NOZZLES
The following procedure applies to all of the oil
nozzles.
1. Check:

oil nozzle
1
Damage / wear
Replace the oil nozzle.

O-ring
2
Damage / wear
Replace.

oil nozzle passage
Obstruction
Blow out with compressed air.
EAS00374
ASSEMBLING THE OIL PUMP
1. Lubricate:

inner rotor

outer rotor

oil pump shaft
(with the recommended lubricant)
Recommended lubricant
Engine oil
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5-75
CRANKCASEENG
NOTE:
EAS00399
CHECKING THE CRANKCASE
1. Thoroughly wash the crankcase halves in a
mild solvent.
2. Thoroughly clean all the gasket surfaces and
crankcase mating surfaces.
3. Check:

crankcase
Cracks / damage
Replace.

oil delivery passages
Obstruction
Blow out with compressed air.
EAS00401
CHECKING THE BEARINGS AND OIL
SEALS
1. Check:

bearings
Clean and lubricate the bearings, then rotate
the inner race with your finger.
Rough movement
Replace.
2. Check:

oil seals
Damage / wear
Replace.
ASSEMBLING THE CRANKCASE
1. Lubricate:

crankshaft journal bearings
(with the recommended lubricant)
Recommended lubricant
Engine oil
2. Apply:

sealant
Yamaha bond No. 1215
90890-85505, ACC-1109-05-01
Do not allow any sealant to come into contact
with the oil gallery or crankshaft journal bear-
ings. Do not apply sealant to within 2
3 mm
(0.08
0.12 in) of the crankshaft journal bear-
ings.
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5-93
CRANKSHAFTENG
CAUTION:
EAS00395
CHECKING THE CRANKSHAFT
1. Measure:

crankshaft runout
Out of specification
Replace the crank-
shaft.
Crankshaft runout
Less than 0.03 mm (0.0012 in)
2. Check:

crankshaft journal surfaces

crankshaft pin surfaces

bearing surfaces
Scratches / wear
Replace the crankshaft.
CHECKING THE CRANKSHAFT DRIVE
SPROCKET
1. Check:

crankshaft drive sprocket
1
Cracks / damage / wear
Replace the de-
fective part(s).
CHECKING THE CRANKSHAFT JOURNAL
BEARINGS
1. Measure:

crankshaft-journal-to-crankshaft-journal-
bearing clearance
Out of specification
Replace the crank-
shaft journal bearings.
Crankshaft-journal-to-crankshaft-
journal-bearing clearance
0.014
0.037 mm
(0.0006
0.0015 in)
: 0.10 mm (0.0039 in)
Do not interchange the crankshaft journal
bearings. To obtain the correct crankshaft-
journal-to-crankshaft-journal-bearing clear-
ance and prevent engine damage, the crank-
shaft journal bearings must be installed in
their original positions.
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5-105
TRANSMISSIONENG
NOTE:
12 Nm (1.2 m
kg, 8.7 ft
lb)
10 Nm (1.0 m
kg, 7.2 ft
lb)
NOTE: 2. Measure:

drive axle runout
(with a centering device and dial gauge
1)
Out of specification
Replace the drive
axle.
Drive axle runout limit
0.08 mm (0.0032 in)
3. Check:

transmission gears
Blue discoloration / pitting / wear
Replace
the defective gear(s).

transmission gear dogs
Cracks / damage / rounded edges
Replace
the defective gear(s).
INSTALLING THE TRANSMISSION
1. Install:

bearing
1
Make the seal side of bearing face to the outside
and install it close to the right end face of the
crankcase.

oil pipe
2
2. Install:

main axle assembly
1

bearing housing 2
LOCTITE

shift fork “C”

shift drum assembly

shift fork guide bar

shift fork guide bar retainer
LOCTITE

The embossed marks on the shift forks should
face towards the right side of the engine and
be in the following sequence: “R”, “C”, “L”.

Carefully position the shift forks so that they
are installed correctly into the transmission
gears.

Install shift fork “C” into the groove in the 3rd
and 4th pinion gear on the main axle.
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6-7
OIL COOLERCOOL
63 Nm (6.3 m
kg, 46 ft
lb)
NOTE:
EAS00458
CHECKING THE OIL COOLER
1. Check:

oil cooler
Cracks / damage
Replace.
2. Check:

oil cooler inlet hose

oil cooler outlet hose
Cracks / damage / wear
Replace.
EAS00459
INSTALLING THE OIL COOLER
1. Clean:

mating surfaces of the oil cooler and the
crankcase
(with a cloth dampened with lacquer thinner)
2. Install:

O-ring
New

oil cooler
1

washer 2 New

bolt
3

Before installing the oil cooler, lubricate the oil
cooler bolt and O-ring with a thin coat of engine
oil.

Make sure that the O-ring is positioned proper-
ly.

Align the projection
a on the oil cooler with the
slot
b in the crankcase.
3. Fill:

cooling system
(with the specified amount of the recom-
mended coolant)
Refer to “CHANGING THE COOLANT” in
chapter 3.

crankcase
(with the specified amount of the recom-
mended engine oil)
Refer to “CHANGING THE ENGINE OIL” in
chapter 3.
4. Check:

cooling system
Leaks
Repair or replace any faulty part.
5. Measure:

radiator cap opening pressure
Below the specified pressure
Replace the
radiator cap.
Refer to “CHECKING THE RADIATOR”.
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7-4
30: Lean angle cut-off switch
(latch up detected)
41: Lean angle cut-off switch
(open or short circuit)
50: ECU internal malfunction
(memory check error)
FUEL INJECTION SYSTEMFI
EAS00899
ECU’S SELF-DIAGNOSTIC FUNCTION
The ECU is equipped with a self-diagnostic function in order to ensure that the engine control system is
operating normally. If this function detects a malfunction in the system, it immediately operates the en-
gine under substitute characteristics and illuminates the engine trouble warning light to alert the rider
that a malfunction has occurred in the system. Once a malfunction has been detected, a fault code is
stored in the memory of the ECU.

To inform the rider that the fuel injection system is not functioning, the engine trouble warning light
flashes when the start switch is being pushed to start the engine.

If a malfunction is detected in the system by the self-diagnostic function, this mode provides an ap-
propriate substitute characteristic operation, and alerts the rider of the detected malfunction by illumi-
nating an engine trouble warning light.

After the engine has been stopped, the fault code number appears from the lowest value in order of
precedence on the LCD meter. Once a fault code has been displayed, it remains stored in the memory
of the ECU until it is deleted.
EAS00900
Engine trouble warning light indication and FI system operating condition
Warning light
indication
ECU’s operationFI operationVehicle operation
Flashing*Warning provided
when unable to start
engineOperation stoppedUnable
Remains ONMalfunction detectedOperated with
substitute
characteristics
in accordance with the
description of the
malfunctionAble / Unable depend-
ing on the self-diag-
nostic fault code
* The warning light flashes when any one of the conditions listed below is present and the start switch is
pushed.
11: Cylinder identification sensor
12: Crankshaft position sensor
19: Sidestand switch
(open circuit in wire to ECU)
EAS00901
Checking for a defective engine trouble warning light bulb
The engine trouble warning light comes on for 1.4 seconds after the main switch has been turned “ON”
and when the start switch is being pushed. If the warning light does not come on under these condi-
tions, the warning light bulb may be defective.
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7-6
FUEL INJECTION SYSTEMFI
Fault
Code No.ItemSymptomFail-safe actionAble / unable
to startAble / unable
to drive
46Vehicle system power
supply (Monitor voltage)Power supply to the FI system is not
normal.--AbleAble
47Sub-throttle servo motor
potention (open or short
circuit)sub-throttle servo motor potention-
open or short circuit detected.
Turn the sub-throttle servo motor
toward the close side for 4 seconds
and then stop it.AbleAble
48
Sub-throttle servo motor
(lock)A lock of the sub-throttle servo motor is
detected.
Perform the preventative control
against motor locking.
(Perform the lock release operation
twice every 100 seconds.)
AbleAble
50ECU internal
malfunction (memory
check error)Faulty ECU memory. When this
malfunction is detected, the code
number might not appear on the meter.--UnableUnable
—
Start unable warningRelay is not turned ON even if the crank
signal is input while the start switch is
turned ON.
When the start switch is turned ON
while an error is detected with the fault
code of No.11, 12, 19, 30, 41 or 50.Engine trouble warning light flashes
when the start switch is turned ON.
UnableUnable
Communication error with the meter
Fault
Code No.ItemSymptomFail-safe actionAble / unable
to startAble / unable
to drive
Er-1ECU internal malfunction
(output signal error)No signals are received from the ECU.–UnableUnable
Er-2ECU internal malfunction
(output signal error)No signals are received from the ECU
within the specified duration.–UnableUnable
Er-3ECU internal malfunction
(output signal error)Data from the ECU cannot be received
correctly.–UnableUnable
Er-4ECU internal malfunction
(input signal error)Non-registered data has been received
from the meter.–UnableUnable
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7-7
Engine operation is not normal or the engine trouble warning light is on.
* Engine trouble warning light may not come on even if the engine operation is not normal.
The engine trouble warning light comes on.
Check the fault code number displayed on the me-
ter.
Identify the probable cause of malfunction. (Refer
to the “Diagnostic fault code table”.)
Check and repair the probable case of malfunc-
tion.
Fault code No.
appearFault code No.
disappear
Check and repair.
(Refer to “TROU-
BLESHOOTING DE-
TAILS”.)
Monitor the operation
of the sensors and
actuators in the diag-
nostic mode. (Refer
to “Diagnostic mode
table” in chapter 7)Check and repair.
(Refer to “FAIL-SAFE
ACTIONS TABLE”.)
Perform ECU reinstatement action. (Refer to “Re-
instatement method” in “TROUBLESHOOTING
DETAILS”.)
Turn the main switch to “OFF”, turn the main switch
back to “ON”, and then check if the fault code num-
ber is still displayed.
Erasing the malfunction history:*
The malfunction history is stored even if the main
switch is turned OFF.
The malfunction history must be erased in the
diagnostic mode. (Refer to the “Diagnostic mode
table (Diagnostic code No.62)”)Repairs completed
The engine trouble warning light does not come
on.
Check the operation of following sensors and ac-
tuators in the diagnostic mode (Refer to “Diagnos-
tic mode table” in chapter 7.)
Malfunction of en-
gineDefective sensor
or actuator
Check and repair
the inner parts of
engine. (Refer to
Chapter 5)Check and repair
the corresponding
sensor or actua-
tor.
* Operated when the engine trouble warning light is on.
Fault code
number displayed
Fault code number not displayed
OKNG
OK
OK
Check the engine condition.
OK NG
01: Throttle position
sensor (throttle
angle)
03: Intake air pressure
07: Vehicle speed pulse
09: Fuel system volt-
age (battery bolt)
21: Neutral switch
30: Ignition coil #1
31: Ignition coil #232: Ignition coil #3
33: Ignition coil #4
36: Injector #1
37: Injector #2
38: Injector #3
39: Injector #4
48: Al system solenoid
53: EXUP servo motor
56: Sub-throttle servo
motor
FUEL INJECTION SYSTEMFI
EAS00904
TROUBLESHOOTING CHART
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