2007 YAMAHA RHINO 660 coolant

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)
EE.book Page 17 Friday, August 4, 2006 12:02 PM

8-7
EVU00671
PERIODIC MAINTENANCE/LUBRICATION
NOTE:

For vehicles not equipped with an odometer or hour meter, follow the month maintenance intervals.


For vehicles equipped with an odometer or an hour meter, follow the km (mi) or hours maintenance intervals.
However, keep in mind that if the vehicle isn’t used for a long period of time, the month maintenance intervals
should be followed.


Items marked with an asterisk should be performed by a Yamaha dealer as they require special tools, data and
technical skills.
ITEM ROUTINEWhichever
comes firstINITIAL EVERY
month136612
km
(mi)320
(200)1,200
(750)2,400
(1,500)2,400
(1,500)4,800
(3,000)
hours 20 75 150 150 300
Valves*Check valve clearance.
Adjust if necessary.
Cooling systemCheck coolant leakage.
Repair if necessary.
Replace coolant every 24 months.Spark plugCheck condition.
Adjust gap and clean.
Replace if necessary.Air filter elements
(engine and air intake duct)Clean.
Replace if necessary.Every 20–40 hours
(More often in wet or dusty areas.)
Carburetor*Check idle speed/starter operation.
Adjust if necessary.Crankcase breather
system*Check breather hose for cracks or damage.
Replace if necessary.Exhaust system*Check for leakage.
Tighten if necessary.
Replace gasket(s) if necessary.Spark arresterClean.EE.book Page 7 Friday, August 4, 2006 12:02 PM

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
EVU00732
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)
EE.book Page 47 Friday, August 4, 2006 12:02 PM

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 an-
tifreeze 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 is automatically switched on or
off according to the coolant temperature in the
radiator.
_If your vehicle overheats, see page 8-140 for de-
tails.
EE.book Page 49 Friday, August 4, 2006 12:02 PM

8-140
Engine overheatingNOTE:_ If it is difficult to get the recommended coolant, tap water can be temporarily used, provided that it is
changed to the recommended coolant as soon as possible. _
WARNING
Wait for the engine and radiator to cool before removing the radiator cap. You could be burned by
hot fluid and steam blown out under pressure. Always put a thick rag over the cap when opening.
Allow any remaining pressure to escape before completely removing the cap.Wait until the
engine has cooled.
Check the coolant level in the
coolant reservoir and/or radiator.
Level is OK.Level is low, check the
cooling system for leakage.
No
leakage.Leakage.
Ask a Yamaha dealer to inspect
and repair the cooling system.Add coolant. (See NOTE.)
Restart the engine. If the engine overheats again, ask a
Yamaha dealer to inspect and/or repair the cooling system.
EE.book Page 140 Friday, August 4, 2006 12:02 PM

10-6
Bulb voltage, wattage × quantity:
Headlight 12 V 30.0 W/30.0 W × 2
Tail/brake light 12 V 5.0 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
On-Command four-wheel-drive/differential gear
lock indicatorLCD
High-range indicator light LED
Low-range indicator light LED
On-Command 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 motor fuse 3.0 A
Carburetor warmer fuse 10.0 A
Signaling system fuse 10.0 A
Backup fuse 10.0 AModel YXR66FW
EE.book Page 6 Friday, August 4, 2006 12:02 PM