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8-10
5B410012Engine oil and oil filter cartridge
Check engine oil level before each operation.
In addition, change the oil and the oil filter car-
tridge at the intervals specified in the periodic
maintenance and lubrication chart.
To check the engine oil level1. Park the vehicle on a level surface.
2. Remove the console. (See page 8-9 for console removal and installation proce-
dures.)
3. Check the engine oil level on a cold en-
gine. TIPIf the engine was started before checking the
oil level, be sure to warm up the engine suffi-
ciently, and then wait at least 10 minutes until
the oil settles for an accurate reading.4. Remove the engine oil dipstick, and thenwipe it off with a clean rag.
1. Engine oil dipstick
1
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8-11
5. Insert the dipstick completely into the oilfiller hole, and then remove it again to
check the oil level. TIPThe engine oil should be between the mini-
mum and maximum level marks.1. Maximum level mark 2. Minimum level mark6. If the engine oil is at or below the mini-mum level mark, add sufficient oil of the
recommended type to raise it to the cor-
rect level. 7. Insert the dipstick completely into the oil
filler hole.
8. Install the console.
1
2
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8-15
NOTICE●
In order to prevent clutch slippage
(since the engine oil also lubricates
the clutch), do not mix any chemical
additives with oil. 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 “EN-
ERGY CONSERVING II” or higher.
●
Make sure that no foreign material en-
ters the crankcase.
13. Start the engine, and then let it idle forseveral minutes while checking it for oil
leakage. If oil is leaking, immediately turn
the engine off and check for the cause.
14. Turn the engine off, wait at least 10 min- utes, and then check the oil level and cor-
rect it if necessary.
15. Install the console.
5B410013Final gear oil
Checking the final gear oil level 1. Park the vehicle on a level surface.
2. Remove the final gear oil filler bolt and its O-ring, and then check the oil level in the
final gear case. The oil level should be at
the brim of the filler hole.1. Final gear oil filler bolt 2. O-ring
3. Final gear oil 4. Correct oil level
1
2
3
4
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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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8-31
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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8-62
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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8-63
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.
1RB7A_EE.book Page 63 Tuesday, April 24, 2012 9:07 AM
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