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PERIODIC MAINTENANCE AND ADJUSTMENT
6-11
6
3. Install the bolts and the quick fas-
tener screws.
4. Install the seats.
EAU19642
Checking the spark plugs The spark plugs are important engine
components, which should be checked
periodically, preferably by a Yamaha
dealer. Since heat and deposits will
cause any spark plug to slowly erode,
they 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.
The porcelain insulator around the cen-
ter 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 en-
gine should have the same color. If any
spark plug shows a distinctly different
color, the engine could be operating im-
properly. Do not attempt to diagnose
such problems yourself. Instead, have
a Yamaha dealer check the vehicle.
If a spark plug shows signs of electrode
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.
1. Panel C
2. Fuel tank side cover
1. Panel C
1
21
Specified spark plug:
NGK/CR8E
DENSO/U24ESR-N
1. Spark plug gap
Spark plug gap:
0.7–0.8 mm (0.028–0.031 in)
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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 speci-
fied torque as soon as possible.
EAU19886
Engine oil and oil filter car-
tridge 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 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 located
at the bottom-left side of the crank-
case.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 change the engine oil (with or
without oil filter cartridge 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.
Tightening torque:
Spark plug:
13 Nm (1.3 m·kgf, 9.4 ft·lbf)
1. Engine oil level check window
2. Maximum level mark
3. Minimum level mark
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-14
68. 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.
NOTICE
ECA11620
In order to prevent clutch slip-
page (since the engine oil also
lubricates the clutch), do not
mix any chemical additives. Do
not use oils with a diesel speci-
fication of “CD” or oils of a high-
er quality than specified. In
addition, do not use oils labeled
“ENERGY CONSERVING II” or
higher.
Make sure that no foreign 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, im-
mediately 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
ECA10401
If the oil level warning light flickers
or remains on even if the oil level is
correct, immediately turn the engine
off and have a Yamaha dealer check
the vehicle.11. Turn the engine off, and then
check the oil level and correct it if
necessary.
Tightening torque:
Oil filter cartridge:
17 Nm (1.7 m·kgf, 12 ft·lbf)
Tightening torque:
Engine oil drain bolt:
43 Nm (4.3 m·kgf, 31 ft·lbf)
Recommended engine 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
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6
EAU20016
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 vehicle. In addi-
tion, the final gear oil level must be
checked and the oil changed as follows
at the intervals specified in the periodic
maintenance and lubrication chart.
WARNING
EWA10370
Make sure that no foreign mate-
rial enters the final gear case.
Make sure that no oil gets on the
tire or wheel.
To check the final gear oil level
1. Place the vehicle on the center-
stand.TIPMake sure that the vehicle is positioned
straight up when checking the oil level.
A slight tilt to the side can result in a
false reading.2. Remove the final gear oil filler bolt
and its gasket, and then check the
oil level in the final gear case.
TIPThe oil level should be at the brim of the
filler hole.3. If the oil is below the brim of the fill-
er hole, add sufficient oil of the rec-
ommended type to raise it to the
correct level.
4. Check the gasket for damage, and
replace it if necessary.
5. Install the final gear oil filler bolt
and its gasket, and then tighten the
bolt to the specified torque.To change the final gear oil
1. Place the vehicle on a level sur-
face.
2. Place an oil pan under the final
gear case to collect the used oil.
3. Remove the final gear oil filler bolt,
the final gear oil drain bolt and their
gasket to drain the oil from the final
gear case.
4. Install the final gear oil drain bolt
and its new gasket, and then tight-
en the bolt to the specified torque.1. Final gear oil filler bolt
2. Gasket
3. Correct oil level
3
21
Tightening torque:
Final gear oil filler bolt:
23 Nm (2.3 m·kgf, 17 ft·lbf)
1. Final gear oil filler bolt
2. Final gear oil drain bolt
3. Gasket
11
2
3
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-16
65. Refill with the recommended final
gear oil to the brim of the filler hole.
6. Check the oil filler bolt gasket for
damage, and replace it if neces-
sary.
7. Install the oil filler bolt and its gas-
ket, and then tighten the bolt to the
specified torque.
8. Check the final gear case for oil
leakage. If oil is leaking, check for
the cause.
EAU20070
Coolant The coolant level should be checked
before each ride. In addition, the cool-
ant must be changed at the intervals
specified in the periodic maintenance
and lubrication chart.
EAU40154
To check the coolant level
1. Place the vehicle on the center-
stand.TIP
The coolant level must be checked
on a cold engine since the level
varies with engine temperature.
Make sure that the vehicle is posi-
tioned straight up when checking
the coolant level. A slight tilt to the
side can result in a false reading.
2. Check the coolant level in the cool-
ant reservoir.TIPThe coolant should be between the
minimum and maximum level marks.
3. If the coolant is at or below the
minimum level mark, remove the
coolant reservoir cap.
4. Add coolant or distilled water to
raise the coolant to the maximum
level mark, install the coolant res-
Tightening torque:
Final gear oil drain bolt:
23 Nm (2.3 m·kgf, 17 ft·lbf)
Recommended final gear oil:
Yamaha genuine shaft drive gear oil
SAE 80 API GL-5
Oil quantity:
0.20 L (0.21 US qt, 0.18 Imp.qt)
Tightening torque:
Final gear oil filler bolt:
23 Nm (2.3 m·kgf, 17 ft·lbf)
1. Maximum level mark
2. Minimum level mark
1. Coolant reservoir cap
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-22
6
EAU37913
Checking the brake lever free
play There should be no free play at the
brake lever end. If there is free play,
have a Yamaha dealer inspect the
brake system.
WARNING
EWA14211
A soft or spongy feeling in the brake
lever can indicate the presence of air
in the hydraulic system. If there is air
in the hydraulic system, have a
Yamaha dealer bleed the system be-
fore operating the vehicle. Air in the
hydraulic system will diminish thebraking performance, which may re-
sult in loss of control and an acci-
dent.
EAU36503
Brake light switches The brake light, which is activated by
the brake pedal and brake lever, should
come on just before braking takes ef-
fect. If necessary, have a Yamaha deal-
er adjust the brake light switches.
1. No brake lever free play
1
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6
EAU23659
Replacing the fuses The main fuse, the fuse boxes and the
ABS motor fuse are located under pan-
el A. (See page 6-8.)
If a fuse is blown, replace it as follows.
1. Turn the key to “OFF” and turn off
the electrical circuit in question.2. Remove the blown fuse, and then
install a new fuse of the specified
amperage. WARNING! Do not
use a fuse of a higher amperage
rating than recommended to
avoid causing extensive dam-
age to the electrical system and
possibly a fire.
[EWA15131]
1. Main fuse
2. Fuse box
3. ABS motor fuse
4. ABS motor spare fuse
1. Fuse box
2. Right radiator fan fuse
3. Left radiator fan fuse
4. Hazard fuse
5. Backup fuse (for clock and immobilizer sys-
tem)
6. ABS solenoid fuse
7. Fuel injection system fuse
8. Headlight fuse
9. Signaling system fuse
10.ABS control unit fuse
11.Ignition fuse
12.Auxiliary DC jack fuse
13.YCC-S motor control fuse
14.Spare fuse
20
0
2
714
8 9
10 11
12 13
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PERIODIC MAINTENANCE AND ADJUSTMENT
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6
3. Turn the key to “ON” and turn on
the electrical circuit in question to
check if the device operates.4. If the fuse immediately blows
again, have a Yamaha dealer
check the electrical system.
EAU40361
Headlight bulb If a headlight does not come on, have a
Yamaha dealer check its electrical cir-
cuit or replace the bulb.NOTICE
ECA16580
Do not affix any type of tinted film or
stickers to the headlight lens.
Specified fuses:
Main fuse:
50.0 A
Headlight fuse:
25.0 A
Signaling system fuse:
15.0 A
Ignition fuse:
10.0 A
Radiator fan fuse:
15.0 A × 2
Backup fuse:
10.0 A
Hazard fuse:
10.0 A
Fuel injection system fuse:
15.0 A
ABS solenoid fuse:
20.0 A
ABS control unit fuse:
10.0 A
Auxiliary DC jack fuse:
3.0 A
ABS motor fuse:
30.0 A
YCC-S motor control fuse:
30.0 A
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