tire type YAMAHA YZF-R1S 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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8-10
YESNO 2. Battery

Check the condition of the battery.
Refer to “CHECKING AND CHARGING
THE BATTERY” in chapter 3.
Minimum open-circuit voltage
12.8 V or more at 20C (68F)

Is the battery OK?

Clean the battery
terminals.

Recharge or re-
place the battery.
EAS00739
YESNO
EAS00741
3. Spark plugs
The following procedure applies to all of the
spark plugs.

Check the condition of the spark plug.

Check the spark plug type.

Measure the spark plug gap.
Refer to “CHECKING THE SPARK PLUGS”
in chapter 3.
Standard spark plug
CR9EK (NGK)
Spark plug gap
0.6  0.7 mm (0.0236  0.0276 in)

Is the spark plug in good condition, is it of the
correct type, and is its gap within specifica-
tion?
Re-gap or replace
the spark plug.
IGNITION SYSTEMELEC
NOTE:
YESNO
1. Main and ignition fuses

Check the main and ignition fuses for conti-
nuity.
Refer to “CHECKING THE FUSES” in chap-
ter 3.

Are the main and ignition fuses OK?
Replace the fuse(s).
EAS00737
TROUBLESHOOTING
The ignition system fails to operate (no
spark or intermittent spark).
Check:
1. main and ignition fuses
2. battery
3. spark plugs
4. ignition spark gap
5. ignition coil resistance
6. crankshaft position sensor
7. main switch
8. engine stop switch
9. neutral switch
10. sidestand switch
11. clutch switch
12. starting circuit cut-off relay (diode)
13. lean angle cut-off switch
14. wiring connections
(of the entire ignition system)

Before troubleshooting, remove the following
part(s):
1. seat
2. fuel tank
3. side cowlings

Troubleshoot with the following special tool(s).
Ignition checker
90890-06754
Dynamic spark tester
YM-34487
Pocket tester
90890-03112, YU-3112
EAS00738
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