tire pressure YAMAHA YZF-R1SC 2004 Service Manual

2-11
CHASSIS SPECIFICATIONSSPEC
CHASSIS SPECIFICATIONS
ItemStandardLimit
Frame
Frame type
Caster angle
Trail
Diamond
24
97 mm (3.82 in)











Front wheel
Wheel type
Rim
Size
Material
Wheel travel
Wheel runout
Max. radial wheel runout
Max. lateral wheel runout
Cast wheel
17 M / C
MT3.50
Aluminum
120 mm (4.72 in)























1 mm (0.04 in)
0.5 mm (0.02 in)
Rear wheel
Wheel type
Rim
Size
Material
Wheel travel
Wheel runout
Max. radial wheel runout
Max. lateral wheel runout
Cast wheel
17 M / C
MT6.00
Aluminum
130 mm (5.12 in)























1 mm (0.04 in)
0.5 mm (0.02 in)
Front tire
Tire type
Size
Model (manufacturer)
Tire pressure (cold)
0  90 kg (0  198 lb)
90  202 kg (198  445 lb)
High-speed riding
Min. tire tread depth
Tubeless
120 / 70 ZR17 M / C (58W)
Pilot POWER C (MICHELIN)
D218FL (DUNLOP)
250 kPa (2.5 kgf / cm
2, 2.5 bar, 35.6 psi)
250 kPa (2.5 kgf / cm2, 2.5 bar, 35.6 psi)
250 kPa (2.5 kgf / cm2, 2.5 bar, 35.6 psi)




























1.6 mm (0.06 in)
Rear tire
Tire type
Size
Model (manufacturer)
Tire pressure (cold)
0  90 kg (0  198 lb)
90  202 kg (198  445 lb)
High-speed riding
Min. tire tread depth
Tubeless
190 / 50 ZR17 M / C (73W)
Pilot POWER G (MICHELIN)
D218L (DUNLOP)
290 kPa (2.9 kgf / cm
2, 2.9 bar, 41.3 psi)
290 kPa (2.9 kgf / cm2, 2.9 bar, 41.3 psi)
290 kPa (2.9 kgf / cm2, 2.9 bar, 41.3 psi)




























1.6 mm (0.06 in)
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3-1
3
INTRODUCTION / PERIODIC MAINTENANCE CHART FOR THE EMISSION
CONTROL SYSTEM / GENERAL MAINTENANCE AND LUBRICATION CHARTCHK
ADJ
EAS00036
PERIODIC CHECKS AND ADJUSTMENTS
INTRODUCTION
This chapter includes all information necessary to perform recommended checks and adjustments. If
followed, these preventive maintenance procedures will ensure more reliable vehicle operation, a
longer service life and reduce the need for costly overhaul work. This information applies to vehicles
already in service as well as to new vehicles that are being prepared for sale, All service technicians
should be familiar with this entire chapter.
PERIODIC MAINTENANCE CHART FOR THE EMISSION CONTROL SYSTEM
INITIALODOMETER READINGS
No.ITEMROUTINE600 mi
(1000 km)
or
1 month4000 mi
(7000 km)
or
6 months8000 mi
(13000 km)
or
12 months12000 mi
(19000 km)
or
18 months16000 mi
(25000 km)
or
24 months20000 mi
(31000 km)
or
30 months
1*Fuel line
(See page 3-33)
Check fuel hoses for cracks or damage.

Replace if necessary.





2*Spark plugs
(See page 3-23)
Check Condition.

Adjust gap and clean.

Replace every 8000 mi (13000 km) or 12
months.
Replace.
Replace.

3*Valve clearance
(See page 3-11)
Check and adjust valve clearance when en-
gine is cold.Every 26600 mi (42000 km)
4*Crankcase breather
system
(See page 3-34)
Check breather hose for cracks or damage.

Replace if necessary.





5*Electronic fuel injection
(See page 3-17, 21)
Check and adjust engine idle speed and syn-
chronization.






6*Exhaust system
(See page 3-35)
Check for leakage.

Tighten if necessary.

Replace gasket(s) if necessary.





7*Evaporative emission
control system
(For California only)
Check control system for damage.

Replace if necessary.


8*Air induction system
(See page 7-46)
Check the air cut-off valve, reed valve, and
hose for damage.

Replace any damaged parts if necessary.


GENERAL MAINTENANCE AND LUBRICATION CHART
INITIALODOMETER READINGS
No.ITEMROUTINE600 mi
(1000 km)
or
1 month4000 mi
(7000 km)
or
6 months8000 mi
(13000 km)
or
12 months12000 mi
(19000 km)
or
18 months16000 mi
(25000 km)
or
24 months20000 mi
(31000 km)
or
30 months
1*Air filter element
(See page 3-32)
Check condition and damage.
Replace if necessary.





2*Clutch
(See page 3-31)
Check operation.
Adjust or replace cable.






3*Front brake
(See page 3-42, 44, 45)
Check operation, fluid level, and for fluid leak-
age.

Replace brake pads if necessary.






4*Rear brake
(See page 3-43, 44, 45)
Check operation, fluid level, and for fluid leak-
age.

Replace brake pads if necessary.






5*Brake hoses
Check for cracks or damage.




5*Brake hoses(See page 3-46)
Replace.Every 4 years
6*Wheels
(See page 4-3)
Check runout and for damage.
Replace if necessary.





7*Tires
(See page 3-58)
Check tread depth and for damage.
Replace if necessary.
Check air pressure.
Correct if necessary.






8*Wheel bearings
(See page 4-3)
Check bearings for smooth operation.
Replace if necessary.





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3-58
CHECKING THE TIRES
CHK
ADJ
WARNING
WARNING
EAS00162
CHECKING THE TIRES
The following procedure applies to both of the
tires.
1. Check:

tire pressure
Out of specification
Regulate.

The tire pressure should only be checked
and regulated when the tire temperature
equals the ambient air temperature.

The tire pressure and the suspension must
be adjusted according to the total weight
(including cargo, rider, passenger and ac-
cessories) and the anticipated riding
speed.

Operation of an overloaded motorcycle
could cause tire damage, an accident or an
injury.
NEVER OVERLOAD THE MOTORCYCLE.
Basic
weight
(with oil
and a full
fuel tank)
193 kg (425 lb)
194 kg (428 lb) for CAL
Maximum
load*202 kg (445 lb)
201 kg (443 lb) for CAL
Cold tire
pressureFrontRear
Up to
90 kg
load*250 kPa
(2.5 kgf / cm2,
2.5 bar,
35.6 psi)
290 kPa
(2.9 kgf / cm2,
2.9 bar,
41.3 psi)
90 kg

maximum
load*250 kPa
(2.5 kgf / cm2,
2.5 bar,
35.6 psi)
290 kPa
(2.9 kgf / cm2,
2.9 bar,
41.3 psi)
High-
speed
riding250 kPa
(2.5 kgf / cm2,
2.5 bar,
35.6 psi)
290 kPa
(2.9 kgf / cm2,
2.9 bar,
41.3 psi)
* Total weight of rider, passenger, cargo and ac-
cessories
It is dangerous to ride with a worn-out tire.
When the tire tread reaches the wear limit,
replace the tire immediately.
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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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9-5
FAULTY FRONT FORK LEGS / UNSTABLE HANDLING
TRBL
SHTG
MALFUNCTION

Bent or damaged inner tube

Bent or damaged outer tube

Damaged fork spring

Worn or damaged outer tube bushing

Bent or damaged damper rod

Incorrect oil viscosity

Incorrect oil level
Rear shock absorber assembly(-ies)

Faulty rear shock absorber spring

Leaking oil or gas
Tire(s)

Uneven tire pressures (front and rear)

Incorrect tire pressure

Uneven tire wear
Wheel(s)

Incorrect wheel balance

Deformed cast wheel

Damaged wheel bearing

Bent or loose wheel axle

Excessive wheel runout
Frame

Bent frame

Damaged steering head pipe

Improperly installed bearing race
EAS00861
FAULTY FRONT FORK LEGS
LEAKING OIL

Bent, damaged or rusty inner tube

Cracked or damaged outer tube

Improperly installed oil seal

Damaged oil seal lip

Incorrect oil level (high)

Loose damper rod assembly bolt

Damaged damper rod assembly bolt
copper washer

Cracked or damaged cap bolt O-ring
EAS00863
UNSTABLE HANDLING
Handlebars

Bent or improperly installed right handlebar

Bent or improperly installed left handlebar
Steering head components

Improperly installed upper bracket

Improperly installed under bracket
(improperly tightened ring nut)

Bent steering stem

Damaged ball bearing or bearing race
Front fork leg(s)

Uneven oil levels (both front fork legs)

Unevenly tensioned fork spring (both front
fork legs)

Broken fork spring

Bent or damaged inner tube

Bent or damaged outer tube
Swingarm

Worn bearing or bushing

Bent or damaged swingarm
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