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EAU01139
Removing and installing
cowlings and panels The cowlings and panels shown above
need to be removed to perform some
of the maintenance jobs described in
this chapter. Refer to this section each
time a cowling or panel needs to be re-
moved and installed.
EAU03415
Cowling A
To remove the cowling1. Insert the key into the lock, and
then turn it clockwise.
2. Pull the cowling off as shown.To install the cowling
1. Align the holders under the cowl-
ing with the projections on the
frame.
2. Push down on the rear of the cowl-
ing until it locks in place.
3. Remove the key from the lock.
1. Cowling A
2. Panel A
3. Panel B
1. Unlock.
1. Holder (´ 2)
2. Projection (´ 2)
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EAU03340
Panel A
To remove the panel1. Remove cowling A. (See page 6-6
for cowling removal and installa-
tion procedures.)
2. Remove the screws, and then take
the panel off.
To install the panel1. Place the panel in the original po-
sition, and then install the screws.
2. Install the cowling.
EAU01315
Panel B
To remove the panelRemove the screws, and then take the
panel off.
To install the panelPlace the panel in the original position,
and then install the screws.
EAU03329
Checking the spark plugs The spark plugs are important engine
components, which are easy to check.
Since heat and deposits will cause any
spark plug to slowly erode, the spark
plugs should be removed and checked
in accordance with the periodic mainte-
nance and lubrication chart. In addition,
the condition of the spark plugs can re-
veal the condition of the engine.
To remove a spark plug
1. Remove the spark plug cap.
1. Screw (´ 2)
1. Screw (´ 2)
1. Spark plug cap
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-8
6 2. Remove the spark plug as shown,
with the spark plug wrench includ-
ed in the owner’s tool kit.
To check the spark plugs
1. Check that the porcelain insulator
around the center electrode on
each spark plug is a medium-to-
light tan (the ideal color when the
motorcycle is ridden normally).
2. Check that all spark plugs installed
in the engine have the same color.
NOTE:@ If any spark plug shows a distinctly dif-
ferent color, the engine could be defec-
tive. Do not attempt to diagnose such
problems yourself. Instead, have a
Yamaha dealer check the motorcycle. @3. Check each spark plug for elec-
trode erosion and excessive car-
bon or other deposits, and replace
it if necessary.
To install a spark plug
1. Measure the spark plug gap with a
wire thickness gauge and, if nec-
essary, adjust the gap to specifica-
tion.
2. Clean the surface of the spark
plug gasket and its mating sur-
face, and then wipe off any grime
from the spark plug threads.
3. Install the spark plug with the
spark plug wrench, and then tight-
en it to the specified torque.
1. Spark plug wrench
Specified spark plug:
DPR8EA-9/NGK or
X24EPR-U9/DENSO
a. Spark plug gapSpark plug gap:
0.8–0.9 mm
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6
NOTE:@ If a torque wrench is not available when
installing a spark plug, a good estimate
of the correct torque is 1/4–1/2 turn
past finger tight. However, the spark
plug should be tightened to the speci-
fied torque as soon as possible. @4. Install the spark plug cap.
EAU02938
Engine oil and oil filter
cartridge The engine oil level should be checked
before each ride. In addition, the oil
must be changed and the oil filter car-
tridge replaced at the intervals speci-
fied in the periodic maintenance and
lubrication chart.
To check the engine oil level
1. Place the motorcycle on the cen-
terstand.NOTE:@ Make sure that the motorcycle is posi-
tioned straight up when checking the oil
level. A slight tilt to the side can result in
a false reading. @2. Start the engine, warm it up for
several minutes, and then turn it
off.3. Wait a few minutes until the oil set-
tles, and then check the oil level
through the check window located
at the bottom-right side of the
crankcase.
NOTE:@ The engine oil should be between the
minimum and maximum level marks. @4. If the engine oil is below the mini-
mum level mark, add sufficient oil
of the recommended type to raise
it to the correct level. Tightening torque:
Spark plug:
18 Nm (1.8 m·kg)1. Engine oil level check window
2. Maximum level mark
3. Minimum level mark
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PERIODIC MAINTENANCE AND MINOR REPAIR
6-10
6 To change the engine oil (with or
without oil filter cartridge replace-
ment)
1. Start the engine, warm it up for
several minutes, and then turn it
off.
2. Place an oil pan under the engine
to collect the used oil.3. Remove the engine oil filler cap
and drain bolt to drain the oil from
the crankcase.
NOTE:@ Skip steps 4–6 if the oil filter cartridge is
not being replaced. @
4. Remove the oil filter cartridge with
an oil filter wrench.NOTE:@ An oil filter wrench is available at a
Yamaha dealer. @
1. Engine oil filler cap
1. Engine oil drain bolt
1. Oil filter cartridge
2. Oil filter wrench
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6-11
65. Apply a thin coat of engine oil to
the O-ring of the new oil filter car-
tridge.
NOTE:@ Make sure that the O-ring is properly
seated. @
6. Install the new oil filter cartridge,
and then tighten it to the specified
torque with a torque wrench.
7. Install the engine oil drain bolt, and
then tighten it to the specified
torque.8. Add the specified amount of the
recommended engine oil, and
then install and tighten the oil filler
cap.
1. O-ring
1. Torque wrench
Tightening torque:
Oil filter cartridge:
17 Nm (1.7 m·kg)
Tightening torque:
Engine oil drain bolt:
43 Nm (4.3 m·kg)
Recommended engine oil:
See page 8-1.
Oil quantity:
Without oil filter cartridge
replacement:
3.2 L
With oil filter cartridge
replacement:
3.4 L
Total amount (dry engine):
4.0 L
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EC000072
CAUTION:@ l
In order to prevent clutch slip-
page (since the engine oil also
lubricates the clutch), do not
mix any chemical additives with
the oil or use oils of a higher
grade than “CD”. In addition, do
not use oils labeled “ENERGY
CONSERVING II” or higher.
l
Make sure that no foreign mate-
rial enters the crankcase.
@9. Start the engine, and then let it idle
for several minutes while checking
it for oil leakage. If oil is leaking,
immediately turn the engine off
and check for the cause.NOTE:@ After the engine is started, the engine
oil level warning light should go off if the
oil level is sufficient. @
EC000067
CAUTION:@ If the oil level warning light flickers
or remains on, immediately turn the
engine off and have a Yamaha deal-
er check the vehicle. @10. Turn the engine off, and then
check the oil level and correct it if
necessary.
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6
EAU02975
Final gear oil The final gear case must be checked
for oil leakage before each ride. If any
leakage is found, have a Yamaha deal-
er check and repair the motorcycle. In
addition, the final gear oil must be
changed as follows at the intervals
specified in the periodic maintenance
and lubrication chart.
1. Place the motorcycle on the cen-
terstand.
2. Place an oil pan under the final
gear case to collect the used oil.3. Remove the oil filler bolt and drain
bolt to drain the oil from the final
gear case.
4. Install the final gear oil drain bolt,
and then tighten it to the specified
torque.
5. Add the specified amount of the
recommended final gear oil, and
then install and tighten the oil filler
bolt.
NOTE:@ GL4 is a quality rating. Hypoid gear oils
rated GL5 or GL6 may also be used. @
EW000066
WARNING
@ l
Make sure that no foreign mate-
rial enters the final gear case.
l
Make sure that no oil gets on
the tire or wheel.
@6. Check the final gear case for oil
leakage. If oil is leaking, check for
the cause.
1. Final gear oil filler bolt
2. Correct oil level
3. Final gear oil drain bolt
Tightening torque:
Final gear oil drain bolt:
23 Nm (2.3 m·kg)
Recommended final gear oil:
Hypoid gear oil SAE 80 (API GL4)
or multigrade hypoid gear oil
SAE 80W-90
Oil quantity:
0.2 L
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