2007 YAMAHA RHINO 660 engine

5-13
CAUTION:_ Use only unleaded gasoline. The use of leaded
gasoline will cause severe damage to internal
engine parts, such as the valves and piston
rings, as well as to the exhaust system. _
WARNING


Do not overfill the fuel tank. Fuel expands
when it heats up. If the fuel tank is over-
filled, fuel could spill out due to heat from
the engine or the sun.


Be careful not to spill fuel, especially on
the engine or exhaust pipe which can
cause a fire and severe injury. Wipe up any
spilled fuel immediately.


Be sure the fuel tank cap is closed secure-
ly.
EE.book Page 13 Friday, August 4, 2006 12:02 PM

5-15
EVU00410
Engine oil
Make sure the engine oil is at the specified level.
Add oil as necessary. (See pages 8-23–8-33.)CAUTION:_

In order to prevent clutch slippage (since
the engine oil also lubricates the clutch),
do not mix any chemical additives. Do not
use oils with a diesel specification of “CD”
or oils of a higher quality than specified. In
addition, do not use oils labeled “ENERGY
CONSERVING II” or higher.


Make sure that no foreign material enters
the crankcase.
_
Recommended engine oil type and
quantity:
See page 10-2.
EE.book Page 15 Friday, August 4, 2006 12:02 PM

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

5-19
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.
EE.book Page 19 Friday, August 4, 2006 12:02 PM

6-3
EVU01400
Starting a cold engine
WARNING
Always make sure all control cables work
smoothly before you begin riding in cold
weather. If the control cables are frozen or do
not work smoothly, you could be unable to
control the vehicle, which could lead to an ac-
cident or collision.1. Apply the brake.
2. Shift the drive select lever into the neutral po-
sition.NOTE:_

When the drive select lever is in the neutral
position, the neutral indicator light should
come on. If the neutral indicator light does not
come on, ask a Yamaha dealer to inspect the
electric circuit.


The engine can be started in any gear if the
brake is applied. However, it is recommend-
ed to shift into neutral before starting the en-
gine.
_
EE.book Page 3 Friday, August 4, 2006 12:02 PM

6-5 a. Starter (choke) 1. Fully open
2. Half open 3. Closed
a. Starter (enrichisseur) 1. Ouverture maximale
2. Ouverture moyenne 3. Fermé
a. Estárter (estrangulador) 1. Completamente abierto
2. Medio abierto 3. Cerrado
3. Use the starter (choke) in reference to the fig-
ure:
Position 1 : Cold engine start-
ambient temperature below 5°C
(40°F).
Position 2 : Cold engine start-
ambient temperature at 0°C
(30°F)–30 °C (90 °F) and warming
up position.
Position 3 : Cold engine start-
ambient temperature above 25°C
(80°F) and warm engine start posi-
tion.
4. With your foot off the accelerator pedal, start
the engine by turning the key to “START”.NOTE:_ If the engine fails to start, release the key, and then
try starting again. Wait a few seconds before the
next attempt. Each cranking should be as short as
possible to preserve battery energy. Do not crank
the engine more than 5 seconds on each attempt. _
EE.book Page 5 Friday, August 4, 2006 12:02 PM

6-7
5. If the engine is started with the starter (choke)
in position 1, the starter (choke) should be
returned to position 2 to warm up the en-
gine. If the engine is started with the starter
(choke) in position 2, keep the starter
(choke) in this position to warm up the en-
gine.
6. Continue warming up the engine until it idles
smoothly and return the starter (choke) to po-
sition 3 before riding.CAUTION:_ See the “Engine break-in” section prior to op-
erating the engine for the first time. _
EE.book Page 7 Friday, August 4, 2006 12:02 PM

6-9 1. Jumper cable positive lead
2. Jumper cable negative lead
1. Câble de démarrage positif 2. Câble de démarrage négatif
1. Cable auxiliar positivo 2. Cable auxiliar negativo
EVU00550
Starting a warm engine
To start a warm engine, refer to the “Starting a cold
engine” section. The starter (choke) should not be
used. Press the accelerator pedal slightly.
EVU00561
Jump-starting
Jump-starting the vehicle should be avoided. The
battery should be removed and charged instead.
However, if the vehicle must be jump-started, pro-
ceed as follows.
1. Turn the key to “OFF”.
2. Open the hood. (See pages 8-17–8-19 for
hood opening and closing procedures.)
3. Remove the battery compartment cover.
4. Using a charged 12 V battery, connect the
positive lead of the jumper cable to the posi-
tive terminal of the battery in the vehicle and
the other end of the positive lead to the posi-
tive terminal of the charged battery.
EE.book Page 9 Friday, August 4, 2006 12:02 PM