2004 YAMAHA YZF-R1S oil pressure

4-74
SWINGARM AND DRIVE CHAINCHAS
CAUTION:
2. Check:

drive chain
Stiffness
Clean and lubricate or replace.
3. Clean:

drive chain
a. Wipe the drive chain with a clean cloth.
b. Put the drive chain in kerosene and remove
any remaining dirt.
c. Remove the drive chain from the kerosene
and completely dry it.
This motorcycle has a drive chain with small
rubber O-rings
1 between the drive chain
side plates. Never use high-pressure water
or air, steam, gasoline, certain solvents
(e.g., benzine), or a coarse brush to clean the
drive chain. High-pressure methods could
force dirt or water into the drive chain’s in-
ternals, and solvents will deteriorate the O-
rings. A coarse brush can also damage the
O-rings. Therefore, use only kerosene to
clean the drive chain. Don’t soak drive chain
in kerosine more them ten minutes. O-ring is
damage by kerosine.
4. Check:

O-rings
1
Damage
Replace the drive chain.

drive chain rollers
2
Damage / wear
Replace the drive chain.

drive chain side plates
3
Damage / wear
Replace the drive chain.
Cracks
Replace the drive chain and make
sure the battery breather hose is properly
routed away from the drive chain and below
the swingarm.
5. Lubricate:

drive chain
Recommended lubricant
Engine oil or chain lubricant
suitable for O-ring chains
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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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5-56
CLUTCHENG
NOTE:
10 Nm (1.0 m
kg, 7.2 ft
lb)
NOTE:
NOTE: 6. Lubricate:

friction plates

clutch plates
(with the recommended lubricant)
Recommended lubricant
Engine oil
7. Install:

friction plate 2

clutch plate 1
1
8. Install:

friction plate 1
1
Install the last friction plate shifting half phase.
9. Install:

bearing

pull rod
1

pressure plate 2

clutch springs

clutch spring bolts
3
Tighten the clutch spring bolts in stages and in a
crisscross pattern.
10. Install:

pull lever
In stall the pull lever with the “” mark facing to-
ward upper side.
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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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7-1
FUEL INJECTION SYSTEMFI
19Atmospheric pressure
sensor
20Fuel injection system
relay
21Engine trouble warning
light
22Lean angle cut-off
switch
23Air cut-off valve
13Coolant temperature
sensor
14Spark plug
15Cylinder identification
sensor
16Pressure regulator
17Battery
18ECU
1Ignition coil
2Air filter case
3Intake temperature
sensor
4Fuel delivery hose
5Fuel tank
6Fuel pump
7Fuel return hose
8Intake air presure sen-
sor
9Throttle position sen-
sor
10Fuel injector
11Catalytic converter
12Crankshaft position
sensor
FUEL INJECTION SYSTEM
FUEL INJECTION SYSTEM
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7-3
FUEL INJECTION SYSTEMFI
1Main switch
4Fuse (main)
5Fuse (backup)
6Battery
7Fuse (fuel injection)
10Starting circuit cut-off relay
11Neutral switch
12Sidestand switch
13Fuel pump
14E.C.U.
15Ignition coil #1
16Ignition coil #2
17Ignition coil #3
18Ignition coil #4
19Spark plug
20Injector #1
21Injector #2
22Injector #3
23Injector #4
25Sub-throttle position sensor
26EXUP servo motor
27Speed sensor
28Coolant temperature sensor
29Intake air temperature sensor
31Crankshaft position sensor
32Throttle position sensor
33Intake air pressure sensor
34Atmospheric pressure sensor
35Cylinder identification sensor
36Lean angle cut-off switch
43Multi function meter
53Engine stop switch
73Fuse (ignition)
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7-5
FUEL INJECTION SYSTEMFI
SUBSTITUTE CHARACTERISTICS OPERATION CONTROL (FAIL-SAFE ACTION)
If the ECU detects an abnormal signal from a sensor while the vehicle is being driven, the ECU illumi-
nates the engine trouble warning light and provides the engine with alternate operating instructions
that are appropriate for the type of malfunction.
When an abnormal signal is received from a sensor, the ECU processes the specified values that are
programmed for each sensor in order to provide the engine with alternate operating instructions that
enable the engine to continue to operate or stop operating, depending on the conditions.
The ECU takes fail-safe actions in two ways: one in which the sensor output is set to a prescribed value,
and the other in which the ECU directly operates an actuator. Details on the fail-safe actions are given
in the table below.
FAIL-SAFE ACTIONS TABLE
Fault
Code No.ItemSymptomFail-safe actionAble / unable
to startAble / unable
to drive
11
Cylinder identification
sensorNo normal signals are received from
the cylinder identification sensor.Continues to operate the engine based
on the results of the cylinder
identification that existed up to that
point.
UnableAble
12Crankshaft position
sensorNo normal signals are received from
the crankshaft position sensor.
Stops the engine (by stopping the
injection and ignition).UnableUnable
13
14Intake air pressure
sensor (open or short
circuit) (pipe system)Intake air pressure sensor-open or
short circuit detected.
Faulty intake air pressure sensor
system.
Fixes the intake air pressure to
101.3 kpa.
AbleAble
15
16Throttle position sensor
(open or short circuit)
(stuck)Throttle position sensor-open or short
circuit detected.
Fixes the throttle position sensor to
fully open.AbleAble
17EXUP servo motor
potention
(open or short circuit)EXUP servo motor potention-open or
short circuit detected.
Turn the EXUP servo motor toward
the open side for 3 seconds and then
stop it.AbleAble
18
EXUP servo motor (lock)A lock of the EXUP servo motor is
detected.
Perform the preventive control
against motor locking.
Perform the lock release operation
twice every 100 seconds.
AbleAble
19Sidestand switch (open
circuit in wire to ECU)Open circuit in the input line of ECU
No.15 terminal is detected when the
start switch is pressed.-- (No start)UnableUnable
20Intake air pressure
Atmospheric pressureDefective values are detected due to
the internal malfunction
Fixes the intake air pressure and
atmospheric pressure to 101.3 kpa.AbleAble
21Coolant temperature
sensorCoolant temperature sensor-open or
short circuit detected.
Fixes the coolant temperature to
60C.AbleAble
22Intake temperature
sensorIntake temperature sensor-open or
short circuit detected.
Fixes the intake temperature to 20C.AbleAble
23Atmospheric pressure
sensorAtmospheric pressure sensor-open or
short circuit detected.
Fixes the atmospheric pressure to
101.3 kpa.AbleAble
33
34
35
36
Faulty ignitionOpen circuit detected in the primary
lead of the ignition coil.
Cut the injection of other cylinder in
the same group with the cylinder that
the error is detected.
(Example: when the #1 cylinder is
detective, cut the injection of #1 and
#4 cylinders, when the #2 cylinder is
detective, cut the injection of #2 and
#3 cylinders).
Turn on the power to the air induction
solenoid to always cut-off the air.
Able
(depending
on the num-
ber of faulty
cylinders)Able
(depending
on the num-
ber of faulty
cylinders)
30
41Lean angle cut-off
switch (latch up
detected) (open or short
circuit)Lean angle cut-off switch-open or short
circuit detected.
Turns OFF the fuel injection system
relay of the fuel system.
UnableUnable
42Speed sensor, neutral
switchNo normal signals are received from the
speed sensor; or, an open or short
circuit is detected in the neutral switch.
Fixes the gear to the top gear.AbleAble
43Fuel system voltage
(monitor voltage)The ECU is unable to monitor the
battery voltage (an open circuit in the
line to the ECU).
Fixes the battery voltage to 12 V.AbleAble
44
Error in writing the
amount of CO
adjustment on
EEPROMAn error is detected while reading or
writing on EEPROM (CO adjustment
value).--
AbleAble
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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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