2004 YAMAHA YZF-R1SC engine
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1-3
FEATURES
GEN
INFO
1 Coolant temperature display / air intake
temperature display
2 Odometer / tripmeters / fuel reserve tripme-
ter / stopwatch
3 Shift timing indicator light
NOTE:
NOTE:Odometer, tripmeter, and stopwatch modes
Push the “SELECT” button to switch the display
between the odometer mode “ODO”, the trip-
meter modes “TRIP A” and “TRIP B” and the
stopwatch mode in the following order:
TRIP A TRIP B ODO Stopwatch
TRIP A
If the fuel level warning light comes on, the
odometer display will automatically change to
the fuel reserve tripmeter mode ”F-TRIP” and
start counting the distance traveled from that
point. In that case, push the ”SELECT” button to
switch the display between the various tripme-
ter, odometer, and stopwatch modes in the fol-
lowing order:
F-TRIP Stopwatch TRIP A TRIP B
ODO F-TRIP
To reset a tripmeter, select it by pushing the “SE-
LECT” button, and then push the “RESET” button
for at least one second. If you do not reset the fuel
reserve tripmeter manually, it will reset itself auto-
matically and the display will return to the prior
mode after refueling and traveling 5 km (3 mi).
Stopwatch mode
Standard measurement
1. Push the “RESET” button to start the stopwatch.
2. Push the “SELECT” button to stop the stopwatch.
3. Push the “SELECT” button again to reset the stopwatch.
Split-time measurement
1. Push the “RESET” button to start the stopwatch.
2. Push the “RESET” button to measure split-times. (The colon “:” will start flashing.)
3. Push the “RESET” button to display the final split-time or push the “SELECT” button to stop the stop-
watch and display total elapsed time.
4. Push the “SELECT” button to reset the stopwatch.
Coolant temperature display
The coolant temperature display indicates the temperature of the coolant. Push the “RESET” button to
switch the coolant temperature display to the air intake temperature display.
When the coolant temperature display is selected, “C” is displayed before the coolant temperature.
Air intake temperature display
The air intake temperature display indicates the temperature of the air drawn into the air filter case. Push
the “RESET” button to switch the coolant temperature display to the air intake temperature display.
Even if the air intake temperature is set to be displayed, the coolant temperature warning light comes
on when the engine overheats.
When the key is turned to “ON”, the coolant temperature is automatically displayed, even if the air
intake temperature was displayed prior to turning the key to “OFF”.
When the air intake temperature display is selected, “A” is displayed before thetemperature.
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1-4
FEATURES
GEN
INFO
NOTE: Self-diagnosis devices
The model is equipped with a self-diagnosis device for various electrical circuits. If any of those circuits
are defective, the engine trouble warning light will come on, and then the right display will indicate a
two-digit error code (e.g.,11,12,13).
Display brightness and shift timing indicator light control mode
This mode cycles through five control functions, allowing you to make the following settings in the order
listed below.
Display brightness:
This function allows you to adjust the brightness of the displays and tachometer to suit the outside
lighting conditions.
Shift timing indicator light activity:
This function allows you to choose whether or not the indicator light should be activated and whether
it should flash or stay on when activated.
Shift timing indicator light activation:
This function allows you to select the engine speed at which the indicator light will be activated.
Shift timing indicator light deactivation:
This function allows you to select the engine speed at which the indicator light will be deactivated.
Shift timing indicator light brightness:
This function allows you to adjust the brightness of the indicator light to suit your preference.
To make any settings in this mode, you have to cycle through all of its functions. However, if the key is
turned to “OFF” or the engine is started before completing the procedure, only the settings made be-
fore the “SELECT” button was last pushed will be applied.
In this mode, the right display shows the current setting for each function (except the shift timing indi-
cator light activity function).
To adjust the brightness of the multifunction meter displays and tachometer
1. Turn the key to “OFF”.
2. Push and hold the “SELECT” button.
3. Turn the key to “ON”, and then release the “SELECT” button after five seconds.
4. Push the “RESET” button to select the desired brightness level.
5. Push the “SELECT” button to confirm the selected brightness level. The control mode changes to
the shift timing indicator light activity function.
To set the shift timing indicator light activity function
1. Push the “RESET” button to select one of the following indicator light activity settings:
The indicator light will stay on when activated. (This setting is selected when the indicator light stays
on.)
The indicator light will flash when activated. (This setting is selected when the indicator light flashes
four times per second.)
The indicator light is deactivated; in other words, it will not come on or flash. (This setting is selected
when the indicator light flashes once every two seconds.)
2. Push the ”SELECT” button to confirm the selected indicator light activity. The control mode changes
to the shift timing indicator light activation function.
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1-5
FEATURES
GEN
INFO
NOTE:
NOTE: To set the shift timing indicator light activation function
The shift timing indicator light activation function can be set between 7000 r/min and 15000 r/m. From
7000 r/min to 12000 r/min, the indicator light can be set in increments of 500 r/min. From 12000 r/min to
15000 r/min, the indicator light can be set in increments of 200 r/min.
1. Push the “RESET” button to select the desired engine speed for activating the indicator light.
2. Push the “SELECT” button to confirm the selected engine speed. The control mode changes to the
shift timing indicator light deactivation function.
To set the shift timing indicator light deactivation function
The shift timing indicator light activation function can be set between 7000 r/min and 15000 r/min.
From 7000 r/min to 12000 r/min, the indicator light can be set in increments of 500 r/min. From 12000
r/min to 15000 r/min, the indicator light can be set in increments of 200 r/min.
Be sure to set the deactivation function to a higher engine speed than for the activation function,
otherwise the shift timing indicator light will remain deactivated.
1. Push the “RESET” button to select the desired engine speed for deactivating the indicator light.
2. Push the “SELECT” button to confirm the selected engine speed. The control mode changes to the
shift timing indicator light brightness function.
To adjust the shift timing indicator light brightness
1. Push the “RESET” button to select the desired indicator light brightness level.
2. Push the “SELECT” button to confirm the selected indicator light brightness level. The right display
will return to the odometer or tripmeter mode
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1-6
springlip
oil
grease lip
IMPORTANT INFORMATION
GEN
INFO
EAS00020
IMPORTANT INFORMATION
PREPARATION FOR REMOVAL AND
DISASSEMBLY
1. Before removal and disassembly, eliminate
all dirt, mud, dust and foreign material.
2. Use only the proper tools and cleaning
equipment.
Refer to the “SPECIAL TOOLS”.
3. When disassembling, always keep mated
parts together. This includes gears, cylin-
ders, pistons and other parts that have been
“mated” through normal wear. Mated parts
must always be reused or replaced as an as-
sembly.
4. During disassembly, clean all of the parts
and place them in trays in the order of disas-
sembly. This will speed up assembly and al-
low for the correct installation of all parts.
5. Keep all parts away from any source of fire.
EAS00021
REPLACEMENT PARTS
Use only genuine Yamaha parts for all replace-
ments. Use oil and grease recommended by
Yamaha for all lubrication jobs. Other brands
may be similar in function and appearance, but
inferior in quality.
EAS00022
GASKETS, OIL SEALS AND O-RINGS
1. When overhauling the engine, replace all
gaskets, seals and O-rings. All gasket sur-
faces, oil seal lips and O-rings must be
cleaned.
2. During reassembly, properly oil all mating
parts and bearings and lubricate the oil seal
lips with grease.
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1-10
SPECIAL TOOLS
GEN
INFO
Tool No.Tool name / FunctionIllustration
90890-01441
YM-01441
Fork spring compressor
This tool is used to disassemble or
assemble the front fork legs.
90890-01442
YM-01442
Fork seal driver
This tool is used to install the front fork’s oil
seal and dust seal.
90890-03094
YU-08030
Vacuum gauge
This guide is used to synchronize the car-
buretors.
Compression
gauge
90890-03081
YU-33223
Adapter
90890-04136Compression gauge
Compression gauge adapter
These tools are used to measure engine
compression.
Valve spring compressor
90890-04019
YM-04019
Attachment
90890-04108
YM-01253
90890-04114
YM-4114Valve spring compressor
Valve spring compressor attachment
These tools are used to remove or install
the valve assemblies.
Middle driven shaft
bearing driver
90890-04058
YM-4058
Mechanical seal
installer
90890-04078
YM-33221Middle driven shaft bearing driver
Mechanical seal installer
These tools are used to install the water
pump seal.
90890-04086
YM-91042
Clutch holding tool
This tool is used to hold the clutch boss
when removing or installing the clutch boss
nut.
90890-04111
90890-04116
YM-4116
Valve guide remover
This tool is used to remove or install the
valve guides.
90890-04112
90890-04117
YM-4117
Valve guide installer
This tool is used to install the valve guides.
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1-11
SPECIAL TOOLS
GEN
INFO
Tool No.Tool name / FunctionIllustration
90890-04113
YM-04113
90890-04118
YM-4118Valve guide reamer
This tool is used to rebore the new valve
guides.
90890-06754
YM-34487
Ignition checker
This tool is used to check the ignition sys-
tem components.
90890-85505
ACC-1109-0501
Yamaha bond No. 1215
This bond is used to seal two mating sur-
faces (e.g., crankcase mating surfaces).
90890-03174
Digital circuit tester
This tool is used to check the electrical sys-
tem.
Pivot shaft wrench
90890-01471
YM-01471
Pivot shaft wrench
adapter
90890-01476Pivot shaft wrench
Pivot shaft wrench adapter
This tool is need to loosen or tighten the
spacer bolt.
90890-03132
YU-3112
Pocket tester
This instrument is needed for checking the
engine oil temperature.
Oil pressure
gauge
90890-03153
YU-03153
Adapter
90890-03139Oil pressure gauge
Adapter
These tools are used to measure engine oil
pressure.
90890-06756
Vacuum/pressure pump gauge set
This tool used to measure the vacuum pres-
sure.
90793-80009
Engine tachometer
This tool is needed for observing engine
rpm.
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2-2
ENGINE SPECIFICATIONSSPEC
2
ENGINE SPECIFICATIONS
ItemStandardLimit
Engine
Engine type
Displacement
Cylinder arrangement
Bore stroke
Compression ratio
Engine idling speed
Vacuum pressure at engine idling
speed
Standard compression pressure
(at sea level)
Liquid-cooled, 4-stroke, DOHC
998 cm3 (60.90 cu.in)
Forward-inclined parallel 4-cylinder
77.0 53.6 mm (3.03 2.11 in)
12.4 : 1
1,150 1,250 r / min
22 kPa (165 mmHg, 6.5 inHg)
1,480 kPa (14.80 kg / cm
2,14.80 bar,
210.5 psi) at 350 r / min
Fuel
Recommended fuel
Fuel tank capacity
Total (including reserve)
Reserve only
Premium unleaded gasoline only
18 L (3.96 Imp gal, 4.76 US gal)
3.4 L (0.75 Imp gal, 0.90 US gal)
Engine oil
Lubrication system
Recommended oil
Quantity
Total amount
Without oil filter cartridge
replacement
With oil filter cartridge replacement
Oil pressure
Engine oil temperature
Relief valve opening pressure
Wet sump
At 5C (40F) or higher
Yamalube 4 (20W40) or SAE 20W40
type SE motor oil
At 15C (60F) or lower
Yamalube 4 (10W30) or SAE 10W30
type SE motor oil
3.8 L (3.35 Imp qt, 4.02 US qt)
2.9 L (2.55 Imp qt, 3.07 US qt)
3.1 L (2.73 Imp qt, 3.28 US qt)
230 kPa at 5,000 r / min
(2.3 kg / cm
2 at 5,000 r / min)
(2.3 bar at 5,000 r / min)
(32.7 psi at 5,000 r / min)
100C (212F)
600 680 kPa (6.0 6.8 kg / cm
2,
6.0 6.8 bar, 87.0 98.6 psi)
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2-3
ENGINE SPECIFICATIONSSPEC
ItemStandardLimit
Oil filter
Oil filter type
Bypass valve opening pressure
Paper
80 120 kPa (0.8 1.2 kg / cm2,
0.8 1.2 bar, 11.6 17.4 psi)
Oil pump
Oil pump type
Inner-rotor-to-outer-rotor-tip
clearance
Outer-rotor-to-oil-pump-housing
clearance
Trochoid
0.01 0.10 mm
(0.0004 0.0039 in)
0.09 0.15 mm
(0.00035 0.0059 in)
0.18 mm
(0.0071 in)
0.22 mm
(0.0087 in)
Cooling system
Radiator capacity
Radiator cap opening pressure
Radiator core
Width
Height
Depth
Coolant reservoir
Capacity
Water pump
Water pump type
Reduction ratio
Max. impeller shaft tilt
2.51 L (2.21 Imp qt, 2.65 US qt)
108 137 kPa (1.08 1.37 kg / cm2,
1.0 1.3 bar, 15.6 19.9 psi)
380 mm (14.96 in)
258 mm (10.2 in)
24 mm (0.94 in)
0.25 L (0.22 Imp qt, 0.26 US qt)
Single suction centrifugal pump
65 / 43 25 / 32 (1.181)
0.15 mm
(0.006 in)
Starting system typeElectric starter
Spark plugs
Model (manufacturer) quantity
Spark plug gap
CR9EK (NGK) 4
0.6 0.7 mm (0.0236 0.0276 in)
Cylinder head
Volume
Max. warpage
12.5 13.1 cm3 (0.76 0.80 cu.in)
0.10 mm
(0.0039 in)
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