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PERIODIC MAINTENANCE AND ADJUSTMENT
6-7
6
EAU55251
TIPThe air filter needs more frequent service if you are riding in unusually wet or dusty areas.
Hydraulic brake and clutch service
• Regularly check and, if necessary, correct the brake and clutch fluid levels.
• Every two years replace the internal components of the brake master cylinders and calipers as well as clutch master and release cylinders, and change the brake and clutch fluids.
• Replace the brake and clutch hoses every four years and if cracked or damaged.
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-8
6
EAU18773
Removing an d installin g pan-
elsThe panels shown need to be removed
to perform some of the maintenance
jobs described in this chapter. Refer to
this section each time a panel needs to
be removed and installed.
EAU54133
Panel A
To remove the panel1. Remove the bolts and the quick
fasteners.
2. Release the slot at the rear of the panel from the projection on the
right side cowling.
1. Panel A
1
1. Panel B
1. Panel C
11
1. Panel A
2. Bolt
3. Quick fastener
1
2
3
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-9
63. Release the slot at the front of the
panel from the projection on the
front cowling, and then pull the
panel off as shown. To install the panel
1. Fit the slot at the front of the panel
under the projection on the front
cowling, and then fit the slot at the
rear of the panel over the projec-
tion on the right side cowling as
shown.
TIPMake sure that the fuses are covered
and located to the inside of the panel
lip.
1. Slot
2. Projection
1. Slot
2. Projection
12
2
1
1. Slot
2. Projection2
1
1. Slot
2. Projection
1. Fuse
1
2
1
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-10
6
2. Install the bolts and the quick fas-
teners.
Panels B an d C
To remove a panel
1. Remove the seats. (See page 3-33.)
2. Remove the bolts and the quick fastener screws.
3. Pull the bottom of the panel out-ward, pull the front of the panel
downward, and then slide the
panel forward to release it in the
rear as shown. To install a panel
1. Place the panel in the original po-
sition, and then install the bolts
and the quick fastener screws.
2. Install the seats.
1. Panel B
2. Quick fastener screw
3. Bolt
1 2
2
3
3
2
3
1. Panel C
2. Quick fastener screw
3. Bolt
1. Panel B
1
2 2
2 3
3
1
1. Panel B
1
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-11
6
EAU19653
Checking the spark plu gsThe spark plugs are important engine
components, which should be
checked periodically, preferably by a
Yamaha dealer. Since heat and depos- its will cause any spark plug to slowly
erode, they should be removed and
checked in accordance with the peri-
odic maintenance and lubrication
chart. In addition, the condition of the
spark plugs can reveal the condition of
the engine.
The porcelain insulator around the
center electrode of each spark plug
should be a medium-to-light tan (the
ideal color when the vehicle is ridden
normally), and all spark plugs installed
in the engine should have the same
color. If any spark plug shows a dis-
tinctly different color, the engine could
be operating improperly. Do not at-
tempt to diagnose such problems
yourself. Instead, have a Yamaha deal-
er check the vehicle.
If a spark plug shows signs of elec-
trode erosion and excessive carbon or
other deposits, it should be replaced. Before installing a spark plug, the
spark plug gap should be measured
with a wire thickness gauge and, if
necessary, adjusted to specification.
Clean the surface of the spark plug
gasket and its mating surface, and
then wipe off any grime from the spark
plug threads.
TIPIf 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
specified torque as soon as possible.NOTICE
ECA10841
Do not use any tools to remove or in-
stall the spark plu
g cap, otherwise
the i gnition coil coupler may get
d amag ed . The spark plu g cap may
b e difficult to remove b ecause the
ru bber seal on the en d of the cap fits
ti g htly. To remove the spark plu g
cap, simply twist it b ack and forth
while pullin g it out; to install it, twist
it back an d forth while pushin g it in.
Specifie d spark plu g:
NGK/CPR8EA-91. Spark plug gapSpark plu g g ap:
0.8–0.9 mm (0.031–0.035 in)
Ti ghtenin g torque:
Spark plug: 13 Nm (1.3 m·kgf, 9.4 ft·lbf)
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-12
6
EAU19887
Engine oil an d oil filter car-
tri dgeThe 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 en gine oil level
1. Place the vehicle on the center- stand. 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 locat-
ed at the bottom-left side of the
crankcase.TIPThe 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.
To chan ge the en gine oil (with or
without oil filter cartri dge replace-
ment) 1. Place the vehicle on a level sur- face.
2. Start the engine, warm it up for several minutes, and then turn it
off.
3. Place an oil pan under the engine to collect the used oil. 4. Remove the engine oil filler cap,
the engine oil drain bolt and its
gasket to drain the oil from the
crankcase.
TIPSkip steps 5–7 if the oil filter cartridge
is not being replaced.5. Remove the oil filter cartridge withan oil filter wrench.
1. Engine oil level check window
2. Engine oil filler cap
3. Maximum level mark
4. Minimum level mark
31
4
2
1. Engine oil drain bolt
2. Gasket
12
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-13
6
TIPAn oil filter wrench is available at a
Yamaha dealer.6. Apply a thin coat of clean engine oil to the O-ring of the new oil filter
cartridge.
TIPMake sure that the O-ring is properly
seated.7. Install the new oil filter cartridge,and then tighten it to the specified
torque with a torque wrench. 8. Install the engine oil drain bolt and
its new gasket, and then tighten
the bolt to the specified torque.
9. Refill with the specified amount of the recommended engine oil, and
then install and tighten the oil filler
cap.
TIPBe sure to wipe off spilled oil on any
parts after the engine and exhaust sys-
tem have cooled down.
1. Oil filter wrench
2. Oil filter cartridge
12
1. O-ring
1. Torque wrench
1
Tightenin g torque:
Oil filter cartridge:
17 Nm (1.7 m·kgf, 12 ft·lbf)
Ti ghtenin g torque:
Engine oil drain bolt: 43 Nm (4.3 m·kgf, 31 ft·lbf)
Recommen ded en gine oil:
See page 8-1.
Oil quantity: Without oil filter cartridge replace-
ment:
3.80 L (4.02 US qt, 3.34 Imp.qt)
With oil filter cartridge replacement: 4.00 L (4.23 US qt, 3.52 Imp.qt)
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-14
6
NOTICE
ECA11621
In or der to prevent clutch slip-
pa ge (since the en gine oil also
lu bricates the clutch), do not
mix any chemical additives. Do
not use oils with a diesel speci-
fication of “CD” or oils of a hi gh-
er quality than specifie d. In
a ddition, do not use oils lab eled
“ENERGY CONSERVING II” or
hi gher.
Make sure that no forei gn mate-
rial enters the crankcase.10. 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.TIPAfter the engine is started, the engine
oil level warning light should go off if
the oil level is sufficient.
NOTICE
ECA10402
If the oil level warnin g li ght flickers
or remains on even if the oil level is
correct, imme diately turn the en gine
off an d have a Yamaha dealer check
the vehicle.11. Turn the engine off, and then check the oil level and correct it if
necessary.
EAU20017
Final gear oilThe 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 vehicle. In ad-
dition, the final gear oil level must be
checked and the oil changed as fol-
lows at the intervals specified in the
periodic maintenance and lubrication
chart.
WARNING
EWA10371
Make sure that no forei gn mate-
rial enters the final gear case.
Make sure that no oil gets on
the tire or wheel.To check the final g ear oil level
1. Place the vehicle on the center- stand.TIPMake sure that the vehicle is posi-
tioned straight up when checking the
oil level. A slight tilt to the side can re-
sult in a false reading.
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