2006 YAMAHA YFM700R engine

8-35
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8In 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.
8Make sure that no foreign material enters
the crankcase.
15. Start the engine, and then let it idle for sev-
eral minutes while checking it for oil leak-
age. If oil is leaking, immediately turn the
engine off and check for the cause.
16. Turn the engine off, and then check the oil
level and correct it if necessary.
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EBU10151
Cooling system
1. Check the coolant level in the coolant
reservoir when the engine is cold as the
coolant level will vary with engine tempera-
ture.
NOTE:
The coolant should be between the minimum
and maximum level marks.
2. If the coolant is at or below the minimum
level mark, remove the coolant reservoir
cap, and then add coolant or distilled water
to raise it to the specified level.
1
2
Coolant reservoir capacity
(up to the maximum level mark):
0.25 L
1
1. Coolant reservoir cap1. Bouchon de vase d’expansion1. Tapa del depósito de refrigerante 1. Maximum level mark 2. Minimum level mark
1. Repère maximum 2. Repère minimum1. Marca de máximo 2. Marca de mínimo
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Hard water or salt water is harmful to the
engine. You may use soft water if you can’t
get distilled water.
NOTE:
8If water is added, have a Yamaha dealer
check the antifreeze content of the coolant as
soon as possible.
8The radiator fan operation is completely auto-
matic. It is switched on or off according to the
coolant temperature in the radiator.
If your ATV overheats, see page 8-138 for
details.
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EBU10242
Changing the coolant
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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.
1. Place the ATV on a level surface.
2. Remove panel A. (See page 8-19 for panel
removal and installation procedures.)
3. Place a container under the engine, and
then remove the coolant drain bolt.
4. Remove the radiator cap.
1
1
1. Coolant drain bolt (×2)1. Boulon de vidange du liquide de refroidissement (×2)1. Perno de drenaje de refrigerante (×2)
1. Radiator cap
1. Bouchon de radiateur1. Tapa del radiador
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Hard water or salt water is harmful to the
engine. You may use soft water if you cannot
get distilled water.
Recommended antifreeze:
High quality ethylene glycol antifreeze
containing corrosion inhibitors for
aluminum engines.
Antifreeze and water mixing ratio:
1:1
Total amount:
1.61 L
Coolant reservoir capacity
(up to the maximum level mark):
0.25 L
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8-47
12. Install the radiator cap and the coolant
reservoir cap.
13. Start the engine and let it idle for several
minutes. Stop the engine, and then check
the coolant level in the radiator. If it is low,
add more coolant until it reaches the top of
the radiator.
14. Check the coolant level in the reservoir. If it
is low, add coolant to the maximum level
mark.
15. Start the engine and then check for coolant
leakage.
NOTE:
If any leakage is found, have a Yamaha dealer
check the cooling system.
16. Install the panel.
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EBU14550
Spark plug inspection
Removal
1. Remove the spark plug cap.
2. Use the spark plug wrench in the owner’s
tool kit to remove the spark plug as shown.
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 on the white insulator around the
center electrode is a medium-to-light tan color
for an ATV that is being ridden normally.
Do not attempt to diagnose such problems your-
self.
Instead, take the ATV to a Yamaha dealer. 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 excessive, or if
carbon and other deposits are excessive, you
should replace the spark plug with the specified
plug.1
1
1. Spark plug cap1. Capuchon de bougie1. Tapa de bujía
1. Spark plug wrench
1. Clé à bougie1. Llave de bujía
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8-59
5. Wash the sponge material gently but thor-
oughly in solvent.
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Always use parts cleaning solvent to clean
the sponge material. Never use low flash
point solvents or gasoline to clean the
sponge material because the engine could
catch fire or explode.
6. Squeeze the excess solvent out of the
sponge material and let it dry.
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Do not twist the sponge material when
squeezing it.
7. Inspect the sponge material and replace it
if damaged.
8. Apply foam air filter oil to the sponge mate-
rial.
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