bulb YAMAHA YZF-R1S 2004 Service Manual

CHASSIS3-42 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ADJUSTING THE FRONT BRAKE 3-42. . . . . . . . . . . . . . . . . . . . . . . . . . .
ADJUSTING THE REAR BRAKE 3-43. . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE BRAKE FLUID LEVEL 3-44. . . . . . . . . . . . . . . . . . . . . .
ADJUSTING THE REAR BRAKE LIGHT SWITCH 3-45. . . . . . . . . . . . .
CHECKING THE FRONT AND REAR BRAKE PADS 3-45. . . . . . . . . . .
CHECKING THE FRONT AND REAR BRAKE HOSES 3-46. . . . . . . . .
BLEEDING THE HYDRAULIC BRAKE SYSTEM 3-47. . . . . . . . . . . . . . .
ADJUSTING THE SHIFT PEDAL 3-48. . . . . . . . . . . . . . . . . . . . . . . . . . . .
ADJUSTING THE DRIVE CHAIN SLACK 3-49. . . . . . . . . . . . . . . . . . . . .
LUBRICATING THE DRIVE CHAIN 3-50. . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING AND ADJUSTING THE STEERING HEAD 3-51. . . . . . . . .
CHECKING THE FRONT FORK 3-53. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ADJUSTING THE FRONT FORK LEGS 3-54. . . . . . . . . . . . . . . . . . . . . .
ADJUSTING THE REAR SHOCK ABSORBER ASSEMBLY 3-56. . . . .
CHECKING THE TIRES 3-58. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE WHEELS 3-60. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING AND LUBRICATING THE CABLES 3-61. . . . . . . . . . . . . . .
LUBRICATING THE LEVERS AND PEDALS 3-61. . . . . . . . . . . . . . . . . .
LUBRICATING THE SIDESTAND 3-61. . . . . . . . . . . . . . . . . . . . . . . . . . . .
LUBRICATING THE REAR SUSPENSION 3-61. . . . . . . . . . . . . . . . . . . .
ELECTRICAL SYSTEM3-62 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING AND CHARGING THE BATTERY 3-62. . . . . . . . . . . . . . . . .
CHECKING THE FUSES 3-67. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
REPLACING THE HEADLIGHT BULBS 3-69. . . . . . . . . . . . . . . . . . . . . .
ADJUSTING THE HEADLIGHT BEAMS 3-70. . . . . . . . . . . . . . . . . . . . . .
CHAPTER 4
CHASSIS
FRONT WHEEL AND BRAKE DISCS4-1 . . . . . . . . . . . . . . . . . . . . . . . . . . .
REMOVING THE FRONT WHEEL 4-3. . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE FRONT WHEEL 4-3. . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE BRAKE DISCS 4-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
INSTALLING THE FRONT WHEEL 4-6. . . . . . . . . . . . . . . . . . . . . . . . . . .
ADJUSTING THE FRONT WHEEL STATIC BALANCE 4-7. . . . . . . . .
REAR WHEEL AND BRAKE DISC4-9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
REAR WHEEL 4-9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
REAR BRAKE DISC AND REAR WHEEL SPROCKET 4-10. . . . . . . . .
REMOVING THE REAR WHEEL 4-12. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE REAR WHEEL 4-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE REAR WHEEL DRIVE HUB 4-13. . . . . . . . . . . . . . . . .
CHECKING AND REPLACING THE REAR WHEEL
SPROCKET 4-13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
INSTALLING THE REAR WHEEL 4-14. . . . . . . . . . . . . . . . . . . . . . . . . . . .
ADJUSTING THE REAR WHEEL STATIC BALANCE 4-14. . . . . . . . . . .
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CHECKING THE WATER PUMP 6-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ASSEMBLING THE WATER PUMP 6-15. . . . . . . . . . . . . . . . . . . . . . . . . .
CHAPTER 7
FUEL INJECTION SYSTEM
FUEL INJECTION SYSTEM7-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
WIRING DIAGRAM 7-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ECU’S SELF-DIAGNOSTIC FUNCTION 7-4. . . . . . . . . . . . . . . . . . . . . .
SUBSTITUTE CHARACTERISTICS OPERATION CONTROL
(FAIL-SAFE ACTION) 7-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FAIL-SAFE ACTIONS TABLE 7-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TROUBLESHOOTING CHART 7-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
DIAGNOSTIC MODE 7-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TROUBLESHOOTING DETAILS 7-15. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
THROTTLE BODIES7-35 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
INJECTORS 7-37. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE INJECTORS 7-39. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE THROTTLE BODIES 7-39. . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE THROTTLE BODY JOINTS 7-39. . . . . . . . . . . . . . . . . .
CHECKING THE PRESSURE REGULATOR 7-40. . . . . . . . . . . . . . . . . .
CHECKING THE FUEL PUMP AND PRESSURE REGULATOR
OPERATION 7-40. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING AND ADJUSTING THE THROTTLE POSITION
SENSOR 7-41. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING AND ADJUSTING THE SUB-THROTTLE POSITION
SENSOR 7-43. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING AND ADJUSTING THE THERMO WAX 7-45. . . . . . . . . . . .
AIR INDUCTION SYSTEM7-46 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AIR INJECTION 7-46. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AIR CUT-OFF VALVE 7-46. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AIR INDUCTION SYSTEM DIAGRAMS 7-47. . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE AIR INDUCTION SYSTEM 7-48. . . . . . . . . . . . . . . . . .
CHAPTER 8
ELECTRICAL SYSTEM
ELECTRICAL COMPONENTS8-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING SWITCH CONTINUITY8-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE SWITCHES8-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE BULBS AND BULB SOCKETS8-5 . . . . . . . . . . . . . . . . .
TYPES OF BULBS 8-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE CONDITION OF THE BULBS 8-5. . . . . . . . . . . . . . . .
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CHECKING THE CONDITION OF THE BULB SOCKETS 8-6. . . . . . .
CHECKING THE LEDs 8-7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
IGNITION SYSTEM8-8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CIRCUIT DIAGRAM 8-8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TROUBLESHOOTING 8-10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ELECTRIC STARTING SYSTEM8-14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CIRCUIT DIAGRAM 8-14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
STARTING CIRCUIT CUT-OFF SYSTEM OPERATION 8-15. . . . . . . . .
TROUBLESHOOTING 8-16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
STARTER MOTOR8-19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE STARTER MOTOR 8-21. . . . . . . . . . . . . . . . . . . . . . . . .
ASSEMBLING THE STARTER MOTOR 8-22. . . . . . . . . . . . . . . . . . . . . .
CHARGING SYSTEM8-24 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CIRCUIT DIAGRAM 8-24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TROUBLESHOOTING 8-25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LIGHTING SYSTEM8-27 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CIRCUIT DIAGRAM 8-27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TROUBLESHOOTING 8-29. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE LIGHTING SYSTEM 8-31. . . . . . . . . . . . . . . . . . . . . . . .
SIGNALING SYSTEM8-34 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CIRCUIT DIAGRAM 8-34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TROUBLESHOOTING 8-36. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE SIGNALING SYSTEM 8-36. . . . . . . . . . . . . . . . . . . . . .
COOLING SYSTEM8-43 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CIRCUIT DIAGRAM 8-43. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TROUBLESHOOTING 8-45. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FUEL PUMP SYSTEM8-48 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CIRCUIT DIAGRAM 8-48. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FUEL PUMP SYSTEM 8-49. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TROUBLESHOOTING 8-50. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHECKING THE FUEL PUMP 8-52. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SELF-DIAGNOSIS8-53 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TROUBLESHOOTING 8-54. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHAPTER 9
TROUBLESHOOTING
STARTING FAILURES9-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ENGINE 9-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FUEL SYSTEM 9-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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ELECTRICAL SYSTEMS 9-1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
INCORRECT ENGINE IDLING SPEED9-2 . . . . . . . . . . . . . . . . . . . . . . . . . . .
ENGINE 9-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FUEL SYSTEM 9-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ELECTRICAL SYSTEMS 9-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
POOR MEDIUM-AND-HIGH-SPEED PERFORMANCE9-2 . . . . . . . . . . . . .
ENGINE 9-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FUEL SYSTEM 9-2. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FAULTY GEAR SHIFTING9-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SHIFTING IS DIFFICULT 9-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SHIFT PEDAL DOES NOT MOVE 9-3. . . . . . . . . . . . . . . . . . . . . . . . . . . .
JUMPS OUT OF GEAR 9-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FAULTY CLUTCH9-3 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CLUTCH SLIPS 9-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CLUTCH DRAGS 9-3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
OVERHEATING9-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ENGINE 9-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
COOLING SYSTEM 9-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FUEL SYSTEM 9-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
CHASSIS 9-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
ELECTRICAL SYSTEMS 9-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
OVERCOOLING9-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
COOLING SYSTEM 9-4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
POOR BRAKING PERFORMANCE9-4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FAULTY FRONT FORK LEGS9-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LEAKING OIL 9-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
MALFUNCTION 9-5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
UNSTABLE HANDLING9-5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
FAULTY LIGHTING OR SIGNALING SYSTEM9-6 . . . . . . . . . . . . . . . . . . . .
HEADLIGHT DOES NOT COME ON 9-6. . . . . . . . . . . . . . . . . . . . . . . . . .
HEADLIGHT BULB BURNT OUT 9-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TAIL / BRAKE LIGHT DOES NOT COME ON 9-6. . . . . . . . . . . . . . . . . . .
TAIL / BRAKE LIGHT BULB BURNT OUT 9-6. . . . . . . . . . . . . . . . . . . . . .
TURN SIGNAL DOES NOT COME ON 9-6. . . . . . . . . . . . . . . . . . . . . . . .
TURN SIGNAL BLINKS SLOWLY 9-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TURN SIGNAL REMAINS LIT 9-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TURN SIGNAL BLINKS QUICKLY 9-6. . . . . . . . . . . . . . . . . . . . . . . . . . . .
HORN DOES NOT SOUND 9-6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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2-15
ELECTRICAL SPECIFICATIONSSPEC
ELECTRICAL SPECIFICATIONS
ItemStandardLimit
System voltage12 V



Ignition system
Ignition system type
Ignition timing
Crankshaft position sensor
resistance / color
T.C.I. unit model (manufacturer)
DC. T.C.I.
5 BTDC at 1,050 r / min
336  504 Ω at 20C (68F) / Gy-B
F8T822 (MITSUBISHI) (USA)
F8T823 (MITSUBISHI) (CAL)



















Ignition coils
Model (manufacturer)
Minimum ignition spark gap
Primary coil resistance
Secondary coil resistance
F6T558 (MITSUBISHI)
6 mm (0.24 in)
1.19  1.61 Ω at 20C (68F)
8.5  11.5 kΩ at 20C (68F)















Charging system
System type
Model (manufacturer)
Normal output
Stator coil resistance / color
A.C. magneto
F4T850 (MITSUBISHI)
14 V / 560 W at 5,000 r / min
0.14  0.18 Ω at 20C (68F) / W-W















Rectifier / regulator
Regulator type
Model (manufacture)
Semi conductor short circuit
FH011AA (SHINDENGEN)







()
No-load regulated voltage
Rectifier capacity
Withstand voltage
()
14.3  15.1 V
50 A
100 V











Battery
Battery type
Battery voltage / capacity
Specific gravity
Manufacturer
Ten hour rate amperage
YTZ10S
12 V / 8.6 Ah
1.310
YUASA
0.8 A



















Headlight typeHalogen bulb
Bulbs (voltage / wattage
quantity)
Headlight
Auxiliary light
Tail / brake light
Front turn signal light / position light
Rear turn signal light
Licence plate light
Meter light
12 V 55 W
4
12 V 5 W
2
LED
1
12 V 21 W / 5 W
2
12 V 21 W
2
12 V 5 W
1
LED
1



























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3-69
A
A
B
B
B
REPLACING THE HEADLIGHT BULBS
CHK
ADJ
WARNING
EAS00183
REPLACING THE HEADLIGHT BULBS
The following procedure applies to both of the
headlight bulbs.
1. Disconnect:

headlight bulb cover
1

headlight coupler 2
Ahigh beam
Blow beam
2. Remove:

headlight bulb holder
1
Ahigh beam
Blow beam
3. Remove:

headlight bulb
Since the headlight bulb gets extremely hot,
keep flammable products and your hands
away from the bulb until it has cooled down.
4. Install:

headlight bulb
New
Secure the new headlight bulb with the head-
light bulb holder.
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3-70
REPLACING THE HEADLIGHT BULBS /
ADJUSTING THE HEADLIGHT BEAMSCHK
ADJ
CAUTION:
a
b
a
b
Avoid touching the glass part of the head-
light bulb to keep it free from oil, otherwise
the transparency of the glass, the life of the
bulb and the luminous flux will be adversely
affected. If the headlight bulb gets soiled,
thoroughly clean it with a cloth moistened
with alcohol or lacquer thinner.
5. Install:

headlight bulb holder
6. Install:

headlight bulb cover (high beam)

headlight bulb coupler (low beam)
7. Connect:

headlight coupler (high beam)

headlight cover (low beam)
EAS00185
ADJUSTING THE HEADLIGHT BEAMS
The following procedure applies to both of the
headlights.
1. Remove:

front cowling inner panels
Refer to “COWLINGS”.
2. Adjust:

headlight beam (vertically)
a. Turn the adjusting screw
1 in direction a or
b.
Direction
Headlight beam is raised.
DirectionHeadlight beam is
lowered.
3. Adjust:

headlight beam (horizontally)
a. Turn the adjusting screw
2 in direction a or
b.
Direction
Headlight beam moves to
the left.
DirectionHeadlight beam moves to
the right.
4. Install:

front cowling inner panels
Refer to “COWLINGS”.
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7-4
30: Lean angle cut-off switch
(latch up detected)
41: Lean angle cut-off switch
(open or short circuit)
50: ECU internal malfunction
(memory check error)
FUEL INJECTION SYSTEMFI
EAS00899
ECU’S SELF-DIAGNOSTIC FUNCTION
The ECU is equipped with a self-diagnostic function in order to ensure that the engine control system is
operating normally. If this function detects a malfunction in the system, it immediately operates the en-
gine under substitute characteristics and illuminates the engine trouble warning light to alert the rider
that a malfunction has occurred in the system. Once a malfunction has been detected, a fault code is
stored in the memory of the ECU.

To inform the rider that the fuel injection system is not functioning, the engine trouble warning light
flashes when the start switch is being pushed to start the engine.

If a malfunction is detected in the system by the self-diagnostic function, this mode provides an ap-
propriate substitute characteristic operation, and alerts the rider of the detected malfunction by illumi-
nating an engine trouble warning light.

After the engine has been stopped, the fault code number appears from the lowest value in order of
precedence on the LCD meter. Once a fault code has been displayed, it remains stored in the memory
of the ECU until it is deleted.
EAS00900
Engine trouble warning light indication and FI system operating condition
Warning light
indication
ECU’s operationFI operationVehicle operation
Flashing*Warning provided
when unable to start
engineOperation stoppedUnable
Remains ONMalfunction detectedOperated with
substitute
characteristics
in accordance with the
description of the
malfunctionAble / Unable depend-
ing on the self-diag-
nostic fault code
* The warning light flashes when any one of the conditions listed below is present and the start switch is
pushed.
11: Cylinder identification sensor
12: Crankshaft position sensor
19: Sidestand switch
(open circuit in wire to ECU)
EAS00901
Checking for a defective engine trouble warning light bulb
The engine trouble warning light comes on for 1.4 seconds after the main switch has been turned “ON”
and when the start switch is being pushed. If the warning light does not come on under these condi-
tions, the warning light bulb may be defective.
ProCarManuals.com

8-5
CHECKING THE BULBS AND BULB SOCKETSELEC
WARNING
EAS00732
CHECKING THE BULBS AND
BULB SOCKETS
Check each bulb and bulb socket for damage or
wear, proper connections, and also for continu-
ity between the terminals.
Damage / wear
Repair or replace the bulb,
bulb socket or both.
Improperly connected
Properly connect.
No continuity
Repair or replace the bulb, bulb
socket or both.
TYPES OF BULBS
The bulbs used on this motorcycle are shown in
the illustration on the left.

Bulbs
A and B are used for the headlights
and usually use a bulb holder that must be
detached before removing the bulb. The ma-
jority of these types of bulbs can be removed
from their respective socket by turning them
counterclockwise.

Bulbs
C are used for turn signal and
tail / brake lights and can be removed from
the socket by pushing and turning the bulb
counterclockwise.
CHECKING THE CONDITION OF THE
BULBS
The following procedure applies to all of the
bulbs.
1. Remove:

bulb

Since the headlight bulb gets extremely
hot, keep flammable products and your
hands away from the bulb until it has
cooled down.

When changing the tail / brake light bulb,
confirm that the frame has cooled accord-
ing to the warning label and change the
tail / brake light bulb.
ProCarManuals.com

8-6
CHECKING THE BULBS AND BULB SOCKETSELEC
CAUTION:
NOTE:

Be sure to hold the socket firmly when re-
moving the bulb. Never pull the lead, other-
wise it may be pulled out of the terminal in
the coupler.

Avoid touching the glass part of the head-
light bulb to keep it free from oil, otherwise
the transparency of the glass, the life of the
bulb, and the luminous flux will be adverse-
ly affected. If the headlight bulb gets soiled,
thoroughly clean it with a cloth moistened
with alcohol or lacquer thinner.
2. Check:

bulb (for continuity)
(with the pocket tester)
No continuity
Replace.
Pocket tester
90890-03112, YU-3112
Before checking for continuity, set the pocket
tester to “0” and to the “Ω
1” range.
a. Connect the positive tester probe to terminal
1 and the negative tester probe to terminal
2, and check the continuity.
b. Connect the positive tester probe to terminal
1 and the negative tester probe to terminal
3, and check the continuity.
c. If either of the readings indicate no continuity,
replace the bulb.
CHECKING THE CONDITION OF THE BULB
SOCKETS
The following procedure applies to all of the bulb
sockets.
1. Check:

bulb socket (for continuity)
(with the pocket tester)
No continuity
Replace.
ProCarManuals.com