2013 YAMAHA RHINO 700 engine

8-22
5B410015Coolant
The coolant level should be checked before
each ride.
Checking the coolant level1. Park the vehicle on a level surface.
2. Check the coolant level in the coolant
reservoir when the engine is cold as the
coolant level varies with engine tempera-
ture. TIPThe coolant should be between the minimum
and maximum level marks.
1. Coolant reservoir cap
2. Maximum level mark 3. Minimum level mark3. If the coolant is at or below the minimum level mark, remove the coolant reservoir
cap, add coolant to the maximum level
mark, install the reservoir cap.
Coolant reservoir capacity
(up to the maximum level mark): 0.32 L (0.34 US qt, 0.28 Imp.qt)
1
2
3
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8-25
1. Spark plug wrench
Inspection
The spark plug is an important engine compo-
nent and is easy to inspect. The condition of
the spark plug can indicate the condition of
the engine.
The ideal color of the porcelain insulator
around the center electrode is a medium-to-
light tan for a vehicle that is being ridden nor-
mally.
You should periodically remove and inspect
the spark plug because heat and deposits will
cause the spark plug to slowly break down
and erode. If electrode erosion becomes ex-
cessive, or if carbon and other deposits are
excessive, you should replace the spark plug
with the specified plug.
1
Specified spark plug:
CPR7EA-9 (NGK)
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14. Insert the projections on the air filter casecover into the holders on the air filter
case, and then install the air filter case
cover by hooking the holders onto the
cover.1. Projection ( × 2) 2. Holder ( × 2)15. Install the air intake duct shroud by in-
stalling the quick fastener screws.
16. Close the hood. The air filter element should be cleaned every
20–40 hours. It should be cleaned and lubri-
cated more often if the vehicle is operated in
extremely dusty areas. Each time air filter ele-
ment maintenance is performed, check the air
inlet to the air filter case for obstructions.
Check the air filter element rubber joint to the
throttle body and manifold fittings for an air-
tight seal. Tighten all fittings securely to avoid
the possibility of unfiltered air entering the en-
gine.
NOTICENever operate the engine with the air filter
element removed. This will allow unfiltered
air to enter, causing rapid engine wear and
possible engine damage. Additionally, op-
eration without the air filter element will af-
fect the fuel injection system with
subsequent poor performance and possi-
ble engine overheating.
2
1
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8-33
EVU00780V-belt case drain plug
The V-belt case drain plug is located under
the driver seat. (See page 4-18 for seat re-
moval and installation procedures.)
After riding in water deep enough to allow wa-
ter to enter the V-belt case, remove the drain
plug to drain any water from the case.
If water drains from the V-belt case after re-
moving the drain plug, have a Yamaha dealer
inspect the vehicle, as the water may affect
other engine parts.1. V-belt case drain plug
5B410018Cleaning the spark arrester
WARNING
Hot exhaust system may cause burns. To
avoid burns or fires, make sure that the en-
gine is stopped and the exhaust system is
cool before cleaning the spark arrester. Do
not start the engine while cleaning the ex-
haust system.1. Remove the tailpipe bolts.1. Tailpipe bolt (× 3)
1
1
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8-34
2. Remove the tailpipe by pulling it out ofthe muffler, and then remove the gasket.
3. Tap the tailpipe lightly, and then use a
wire brush to remove any carbon depos-
its from the spark arrester portion of the
tailpipe and inside of the tailpipe housing.1. Tailpipe 2. Spark arrester 3. Gasket4. Install the gasket, and then insert thetailpipe into the muffler and align the bolt
holes.
5. Install the bolts and tighten them to the specified torque. Valve clearance
The correct valve clearance changes with
use, resulting in improper fuel/air supply or
engine noise. To prevent this, the valve clear-
ance must be adjusted regularly. This adjust-
ment however, should be left to a professional
Yamaha service technician.
3
1 2
Tightening torque:
Tailpipe bolt: 10 Nm (1.0 m·kgf, 7.2 ft·lbf)
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8-52
1. Jumper cable positive lead
6. Connect the negative lead of the jumper
cable to the negative terminal of the
charged battery and the other end of the
negative lead to an unpainted metal sur-
face of the crankcase to be started.
1. Jumper cable negative lead7. Start the engine. (Refer to “Starting the engine” on pages 6-2–6-3.)
8. After the engine starts, disconnect the
negative lead of the jumper cable from
the crankcase and charged battery, and
then disconnect the positive lead of the
jumper cable from the charged battery
and the battery in the vehicle.
1
1
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5B410024Troubleshooting charts
Starting problems or poor engine performance1. FuelCheck if there is fuel
in the fuel tank. There is fuel.
Restart the engine.
No fuel. Supply fuel.
2. Compression Use the electric
starter to see if
there is compression. There is compression.
Compression normal.
No compression. Ask a Yamaha dealer to
inspect.
3. Ignition Remove the
spark plug and
check the electrodes. Wet
Wipe clean with dry cloth.
Dry Attach spark plug cap and
ground to chassis. Use the
electric starter.Spark is good.
Ignition system is
normal.
Spark is weak.
Adjust the spark plug gap
or replace the spark plug.
No spark.
Ask a Yamaha dealer to
inspect.
4. Battery
Use the electric starter. Engine turns over
quickly.
Battery is good.
Engine turns over
slowly.
Check the compression.
Check the connections, and ask
a Yamaha dealer to charge the
battery if necessary.
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Engine overheating
Wait for the engine to cool before removing the radiator cap. WARNING! If the engine is not
cool when removing the radiator cap, hot fluid and steam could blow out under pressure
and burn you. Place a thick rag over the cap and remove the cap slowly to allow any remaining
pressure to escape.
If it is difficult to get the recommended coolant , tap water can be used temporarily, provided that
it is changed to the recommended coolant as soon as possible.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 the text below.)
Restart the engine. If the engine overheats again, ask a
Yamaha dealer to inspect and/or repair the cooling system.
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