Page 66 of 408

4-5
1. Differential gear lock indicator light “DIFF. LOCK”
2. Low-range indicator light “L”3. High-range indicator light “H”
4. Neutral indicator light “N”5. Reverse indicator light “R”
6. Parking brake indicator light “P”
7. Four-wheel-drive indicator “”/“”
8. Coolant temperature warning light “”
1. Témoin de blocage du différentiel “DIFF. LOCK”
2. Témoin de la gamme basse “L”3. Témoin de la gamme haute “H”
4. Témoin de point mort “N”5. Témoin de la marche arrière “R”
6. Témoin du frein de stationnement “P”
7. Indicateur quatre roues motrices “”/“”
8. Témoin d’alerte de la température du liquide de refroidissement “”
1. Luz indicadora del bloqueo del diferencial “DIFF. LOCK”
2. Luz indicadora de marcha corta “L”
3. Luz indicadora de marcha larga “H”
4. Luz indicadora de punto muerto “N”
5. Luz indicadora de marcha atrás “R”
6. Luz indicadora del freno de estacionamiento “P”
7. Luz indicadora de tracción integral “”/“”
8. Luz de aviso de la temperatura del líquido refrigerante “”
DIFF.
LOCKDIFF.
LOCK
DIFF.
LOCK
EVU00150
Indicator and warning lights
EVU01130
Differential gear lock indicator light “DIFF.
LOCK”
This indicator light and the differential gear lock in-
dicator in the display come on when the differential
gear lock switch is set to the “4WD-LOCK” posi-
tion.NOTE:_ When the switch is set to “LOCK”, the differential
gear lock indicator light will flash until the differen-
tial gear is locked. _
EVU01140
Low-range indicator light “L”
This indicator light comes on when the drive select
lever is in the “L” position.
EVU01150
High-range indicator light “H”
This indicator light comes on when the drive select
lever is in the “H” position.
U5UG61.book Page 5 Monday, September 6, 2004 9:00 AM
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4-7
1. Differential gear lock indicator light “DIFF. LOCK”
2. Low-range indicator light “L”3. High-range indicator light “H”
4. Neutral indicator light “N”5. Reverse indicator light “R”
6. Parking brake indicator light “P”
7. Four-wheel-drive indicator “”/“”
8. Coolant temperature warning light “”
1. Témoin de blocage du différentiel “DIFF. LOCK”
2. Témoin de la gamme basse “L”3. Témoin de la gamme haute “H”
4. Témoin de point mort “N”5. Témoin de la marche arrière “R”
6. Témoin du frein de stationnement “P”
7. Indicateur quatre roues motrices “”/“”
8. Témoin d’alerte de la température du liquide de refroidissement “”
1. Luz indicadora del bloqueo del diferencial “DIFF. LOCK”
2. Luz indicadora de marcha corta “L”
3. Luz indicadora de marcha larga “H”
4. Luz indicadora de punto muerto “N”
5. Luz indicadora de marcha atrás “R”
6. Luz indicadora del freno de estacionamiento “P”
7. Luz indicadora de tracción integral “”/“”
8. Luz de aviso de la temperatura del líquido refrigerante “”
DIFF.
LOCKDIFF.
LOCK
DIFF.
LOCK
EVU00170
Neutral indicator light “N”
This indicator light comes on when the drive select
lever is in the “N” position.
EVU00160
Reverse indicator light “R”
This indicator light comes on when the drive select
lever is in the “R” reverse position. NOTE:_ If the indicator light flashes while riding, have a
Yamaha dealer check the speed sensor circuit._
EVU00210
Parking brake indicator light “P”
This indicator light comes on when the parking
brake is applied.
U5UG61.book Page 7 Monday, September 6, 2004 9:00 AM
Page 70 of 408

4-9
1. Differential gear lock indicator light “DIFF. LOCK”
2. Low-range indicator light “L”3. High-range indicator light “H”
4. Neutral indicator light “N”5. Reverse indicator light “R”
6. Parking brake indicator light “P”
7. Four-wheel-drive indicator “”/“”
8. Coolant temperature warning light “”
1. Témoin de blocage du différentiel “DIFF. LOCK”
2. Témoin de la gamme basse “L”3. Témoin de la gamme haute “H”
4. Témoin de point mort “N”5. Témoin de la marche arrière “R”
6. Témoin du frein de stationnement “P”
7. Indicateur quatre roues motrices “”/“”
8. Témoin d’alerte de la température du liquide de refroidissement “”
1. Luz indicadora del bloqueo del diferencial “DIFF. LOCK”
2. Luz indicadora de marcha corta “L”
3. Luz indicadora de marcha larga “H”
4. Luz indicadora de punto muerto “N”
5. Luz indicadora de marcha atrás “R”
6. Luz indicadora del freno de estacionamiento “P”
7. Luz indicadora de tracción integral “”/“”
8. Luz de aviso de la temperatura del líquido refrigerante “”
DIFF.
LOCKDIFF.
LOCK
DIFF.
LOCK
EVU01160
Four-wheel-drive indicator “”/“”
This indicator comes on when the “2WD”/“4WD”
switch is set to the “4WD” position. The differential
gear lock indicator “DIFF.LOCK” in the four-wheel-
drive indicator also comes on when the “LOCK”-
“4WD” switch is set to the “4WD-LOCK” position.NOTE:_ Due to the synchronizing mechanism in the differ-
ential gear case, the four-wheel drive indicator
may not come on until the vehicle starts moving. _
EVU00180
Coolant temperature warning light “”
When the coolant temperature reaches a specified
level, this light comes on to warn that the coolant
temperature is too hot. If the light comes on during
operation, stop the engine as soon as it is safe to
do so and allow the engine to cool down for about
10 minutes.
DIFF.
LOCK
U5UG61.book Page 9 Monday, September 6, 2004 9:00 AM
Page 144 of 408
5-17
EVU01370
Coolant
Check the coolant level in the coolant reservoir
when the engine is cold. (The coolant level will
vary with engine temperature.) The coolant level is
satisfactory if it is between the minimum and max-
imum level marks on the coolant reservoir. If the
coolant level is at or below the minimum level
mark, add additional coolant to bring the level up to
maximum level mark. If coolant is not available,
add distilled water. Change the coolant every two
years. (See pages 8-47–8-49 for details.)CAUTION:_ Hard water or salt water is harmful to the en-
gine. You may use soft water if you cannot get
distilled water. _
Coolant reservoir capacity
(up to the maximum level mark):
0.35 L (0.31 Imp qt, 0.37 US qt)
U5UG61.book Page 17 Monday, September 6, 2004 9:00 AM
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8-47 1. Coolant reservoir cap
2. Maximum level mark 3. Minimum level mark
1. Bouchon du vase d’expansion
2. Repère de niveau maximum 3. Repère de niveau minimum
1. Tapón del depósito de líquido refrigerante
2. Marca de nivel máximo 3. Marca de nivel mínimo
EVU00730
Coolant
The coolant level should be checked before each
ride.
Checking the coolant level
1. Place the vehicle on a level surface.
2. Open the hood. (See pages 8-17–8-19 for
hood opening and closing procedures.)
3. Check the coolant level in the coolant reser-
voir when the engine is cold as the coolant
level varies with engine temperature.NOTE:_ The coolant should be between the minimum and
maximum level marks. _4. If the coolant is at or below the minimum level
mark, remove the reservoir cap, add coolant
to the maximum level mark, install the reser-
voir cap, and then close the hood.
Coolant reservoir capacity
(up to the maximum level mark):
0.35 L (0.31 Imp qt, 0.37 US qt)
U5UG61.book Page 47 Monday, September 6, 2004 9:00 AM
Page 288 of 408
8-49
CAUTION:_ Mix antifreeze with distilled water only. Howev-
er, if distilled water is not available, soft water
may be used for refilling._Changing the coolant
The coolant must be changed by a Yamaha dealer
at the intervals specified in the periodic mainte-
nance and lubrication chart.NOTE:_
Adding water instead of coolant lowers the
antifreeze content of the coolant. If water is
used instead of coolant, have a Yamaha
dealer check the antifreeze content of the
coolant as soon as possible.
The radiator fan operation is completely auto-
matic. It is switched on or off according to the
coolant temperature in the radiator.
_If your vehicle overheats, see page 8-134 for de-
tails.
U5UG61.book Page 49 Monday, September 6, 2004 9:00 AM
Page 393 of 408
10-6
Bulb voltage, wattage
× quantity:
Headlight 12 V 30 W/30.0 W
× 2
Tail/brake light 12 V 5 W/21.0 W
× 2
Indicator lights:
Neutral indicator light LED
Reverse indicator light LED
Coolant temperature warning light LED
Parking brake indicator light LED
Four-wheel-drive indicator light LED
Differential gear lock indicator light LED
Specified fuses:
Main fuse 30.0 A
Headlight fuse 15.0 A
Ignition fuse 10.0 A
Auxiliary DC jack fuse 10.0 A
Four-wheel-drive fuse 3.0 A
Carburetor heater fuse 10.0 A
Signaling system fuse 10.0 A
Backup fuse 10.0 AModel YXR660FA
U5UG61.book Page 6 Monday, September 6, 2004 9:00 AM