2004 YAMAHA YZF-R1SC check oil

5-81
CONNECTING RODS AND PISTONSENG
NOTE:
NOTE:
Piston ring side clearance
Top ring
0.030
0.065 mm
(0.0012
0.0026 in)
: 0.115 mm (0.0045 in)
2nd ring
0.020
0.055 mm
(0.0008
0.002 in)
: 0.115 mm (0.0045 in)
2. Install:

piston ring
(into the cylinder)
Level the piston ring into the cylinder with the
piston crown.
a5 mm (0.20 in)
3. Measure:

piston ring end gap
Out of specification
Replace the piston
ring.
The oil ring expander spacer’s end gap cannot
be measured. If the oil ring rail’s gap is exces-
sive, replace all three piston rings.
Piston ring end gap
Top ring
0.15
0.25 mm
(0.0059
0.0098 in)
: 0.50 mm (0.0197 in)
2nd ring
0.30
0.45 mm
(0.0118
0.0177 in)
: 0.80 mm (0.0315 in)
Oil ring
0.10
0.40 mm
(0.0039
0.0158 in)
CHECKING THE PISTON PINS
The following procedure applies to all of the pis-
ton pins.
1. Check:

piston pin
Blue discoloration / grooves
Replace the
piston pin and then check the lubrication sys-
tem.
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5-103
TRANSMISSIONENG
REMOVING THE TRANSMISSION
1. Remove:

drive axle assembly
1

shift drum retainers 2

shift fork guide bars

shift fork “L” and “R”

shift drum assembly

shift fork “C”
2. Remove:

bearing housing
1

main axle assembly 2
a. Insert two bolts 3 of the proper size, as
shown in the illustration, into the main axle
assembly bearing housing.
b. Tighten the bolts until they contact the crank-
case surface.
c. Continue tightening the bolts until the main
axle assembly comes free from the upper
crankcase.
3. Remove:

oil pipe
1

bearing 2
EAS00421
CHECKING THE SHIFT FORKS
The following procedure applies to all of the shift
forks.
1. Check:

shift fork cam follower
1

shift fork pawl 2
Bends / damage / scoring / wear
Replace
the shift fork.
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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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5-106
TRANSMISSIONENG
10 Nm (1.0 m
kg, 7.2 ft
lb)
NOTE:
NOTE: 3. Install:

shift fork “L”
1 and “R” 2

drive axle assembly 3

shift fork guide bar

shift fork guide bar retainer
4
LOCTITE

Install shift fork “L” into the groove in the 6th
wheel gear and shift fork “R” into the groove in
the 5th wheel gear on the drive axle.

Make sure that the drive axle bearing circlip
a
is inserted into the grooves in the upper crank-
case.
4. Check:

transmission
Rough movement
Repair.
Oil each gear, shaft, and bearing thoroughly.
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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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6-14
WATER PUMPCOOL
NOTE:
NOTE:
NOTE:
EAS00471
DISASSEMBLING THE WATER PUMP
1. Remove:

water pump seal
1
Tap out the water pump seal from the inside of
the water pump housing.
2Water pump housing
2. Remove:

oil seal
1

bearing 2
Tap out the bearing and oil seal from the outside
of the water pump housing.
3Water pump housing
3. Remove:

rubber damper holder
1

rubber damper 2
(from the impeller, with a thin, flat-head
screwdriver)
Do not scratch the impeller shaft.
EAS00473
CHECKING THE WATER PUMP
1. Check:

water pump housing cover
1

water pump housing 2

impeller 3

rubber damper 4

rubber damper holder 5

water pump seals

oil seal
Cracks / damage / wear
Replace.
2. Check:

bearing
Rough movement
Replace.
3. Check:

water pump outlet pipe
Cracks / damage / wear
Replace.
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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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7-12
FUEL INJECTION SYSTEMFI
NOTE: Diagnostic mode table
Switch the meter display from the regular mode to the diagnosis mode. To switch the display, refer to
“DIAGNOSTIC MODE”.

Check the intake air temperature and coolant temperature as close as possible to the intake air tem-
perature sensor and the coolant temperature sensor respectively.

If it is not possible to check it with an atmospheric pressure gauge, judge it by using 101.3 kPa as the
standard.

If it is not possible to check the intake air temperature, use the ambient temperature as reference.
Diagnostic
codeItemDescription of actionData displayed on meter
(reference value)
01
Throttle angleDisplays the throttle angle.

Check with throttle fully closed.

Check with throttle fully open.0
125 degrees

Fully closed position (15
18)

Fully open position (95
100)
02
Atmospheric
pressureDisplays the atmospheric pressure.
* Use an atmospheric pressure gauge to check the
atmospheric pressure.Compare it to the value
displayed on the meter.
03
Intake air pressureDisplays the intake air pressure.
Engine stop switch is on.
* Generate the pressure difference by cranking the engine
with the starter, without actually starting the engine.
Not cranking-atmospheric
pressure

Cranking-intake air pressure It
changes at the value whitch is
smaller than in the atomo-
spheric pressure.
05Intake temperatureDisplays the intake air temperature.
* Check the temperature in the air cleaner case.Compare it to the value
displayed on the meter.
06Coolant temperatureDisplays the coolant temperature.
* Check the temperature of the coolant.Compare it to the value
displayed on the meter.
07
Vehicle speed pulseDisplays the accumulation of the vehicle pulses that are
generated when the tire is spun.(0
999; resets to 0 after 999)
OK if the numbers appear on
the meter.
08Lean angle cut-off
switchDisplays the lean angle cut-off switch values.Upright: 0.4
1.4 V
Overturned: 3.7
4.4 V
09Fuel system voltage
(battery voltage)Displays the fuel system voltage (battery voltage).
Engine stop switch is on.0
18.7 V
Normally, approximately 12.0 V
20Sidestand switchDisplays that the switch is ON or OFF. (When the gear is in a
position other than neutral.)Stand retracted: ON
Stand extended: OFF
21Neutral switchDisplays that the switch is ON or OFF.Neutral: ON
In gear: OFF
30
Ignition coil #1After the engine stop switch has been turned from OFF to
ON, it actuates ignition coil #1 for five times every second
and illuminates the engine trouble warning light.
* Connect an ignition checker.
* If the engine stop switch is ON, turn it OFF once, and then
turn it back ON.Check that spark is generated,
5 times with the engine stop
switch ON.
31
Ignition coils #2After the engine stop switch has been turned from OFF to
ON, it actuates ignition coil #2 for five times every second
and illuminates the engine trouble warning light.
* Connect an ignition checker.
* If the engine stop switch is ON, turn it OFF once, and then
turn it back ON.Check that spark is generated,
5 times with the engine stop
switch ON.
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