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)
U1MCE2E0.book Page 11 Monday, June 16, 2014 8:57 AM
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
6-14
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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PERIODIC MAINTENANCE AND ADJUSTMENT
6-16
6
EAU20071
CoolantThe 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.
EAU54161
To check the coolant level1. Place the vehicle on the center- stand.TIPThe coolant level must be
checked on a cold engine since
the level varies with engine tem-
perature.
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. Remove the left cowling vent pan-
el. (See page 3-37.)
3. Check the coolant level in the coolant reservoir.TIPThe coolant should be between the
minimum and maximum level marks.
4. If the coolant is at or below theminimum level mark, remove the
coolant reservoir cap.
5. Add coolant or distilled water to raise the coolant to the maximum
level mark, and install the coolant reservoir cap.
WARNING! Re-
move only the coolant reservoir
cap. Never attempt to remove
the ra diator cap when the en-
g ine is hot.
[EWA15162]
NOTICE: If
coolant is not availa ble, use dis-
tille d water or soft tap water in-
stead . Do not use har d water or
salt water since it is harmful to
the en gine. If water has b een
use d instea d of coolant, replace
it with coolant as soon as possi-
b le, otherwise the coolin g sys-
tem will not be protected
a g ainst frost and corrosion. If
water has been adde d to the
coolant, have a Yamaha dealer
check the antifreeze content of
the coolant as soon as possi ble,
otherwise the effectiveness of
the coolant will be re duce d.
[ECA10473]
6. Install the panel.
1. Maximum level mark
2. Minimum level mark
1. Coolant reservoir cap
1
21
Coolant reservoir capacity (up to
the maximum level mark): 0.25 L (0.26 US qt, 0.22 Imp.qt)
U1MCE2E0.book Page 16 Monday, June 16, 2014 8:57 AM
PERIODIC MAINTENANCE AND ADJUSTMENT
6-17
6
EAU33032
Changin g the coolant
The coolant must be changed at the in-
tervals specified in the periodic main-
tenance and lubrication chart. Have a
Yamaha dealer change the coolant.
WARNING! Never attempt to remove the ra diator cap when the en gine is
hot.
[EWA10382] EAU20474
Cleanin
g the air filter elementThe air filter element should be cleaned
or replaced at the intervals specified in
the periodic maintenance and lubrica-
tion chart. Clean or, if necessary, re-
place the air filter element more
frequently if you are riding in unusually
wet or dusty areas.
1. Remove panel B. (See page 6-8.)
2. Remove the intake air shroud by removing the screw and the quick
fastener screws.
3. Remove the air filter case cover by removing the screws. 4. Pull the air filter element out.
5. Lightly tap the air filter element to
remove most of the dust and dirt,
and then blow the remaining dirt1. Intake air shroud
2. Quick fastener screw
3. Screw
1
3
2
1. Air filter case cover
2. Screw
1. Air filter element
2
2 1
1
U1MCE2E0.book Page 17 Monday, June 16, 2014 8:57 AM
PERIODIC MAINTENANCE AND ADJUSTMENT
6-23
6b
rakin g performance, which may re-
sult in loss of control and an acci-
d ent.
EAU22283
Brake li ght switchesThe brake light, which is activated by
the brake pedal and brake lever,
should come on just before braking
takes effect. Since the brake light
switches are components of the cruise
control system, they must be adjusted
by a Yamaha dealer, who has the nec-
essary professional knowledge and ex-
perience.
EAU22393
Checkin g the front an d rear
b rake pa dsThe front and rear brake pads must be
checked for wear at the intervals spec-
ified in the periodic maintenance and
lubrication chart.
EAU43432
Front brake pa ds
The front brake calipers are equipped
with two sets of brake pads.
Each front brake pad is provided with a
wear indicator groove, which allows
you to check the brake pad wear with-
out having to disassemble the brake.
To check a brake pad for wear, check
its wear indicator groove. If a brake
pad has worn to the point that the wear1. Brake pad wear indicator groove
1
1
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-32
6
EAU54513
Replacing the fusesThe fuse boxes and individual fuses
are located under panel 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 hi gher ampera ge
ratin g than recommen ded to
avoi d causin g extensive dam-
a g e to the electrical system an d
possi bly a fire.
[EWA15132]
1. Main fuse 1
2. Spare fuse
3. Cruise control fuse
4. Brake light fuse
5. Fuse box
6. Main fuse 2
5
1
3
4
2
2
5
26
1. ABS motor fuse
2. ABS solenoid fuse
3. Fuel injection system fuse
4. Backup fuse (for clock and immobilizer sys-
tem)
5. Electronic throttle valve fuse
6. Headlight fuse
7. Spare fuse
8. Hazard fuse
9. Signaling system fuse
10.Auxiliary DC jack fuse
11.ABS control unit fuse
12.Ignition fuse
13.Right radiator fan motor fuse
14.Left radiator fan motor fuse
15.Windshield motor fuse
147
9101112
13
715
817
2
3456
7
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-33
63. 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.
EAU40362
Hea dlig ht bul bIf a headlight does not come on, have
a Yamaha dealer check its electrical
circuit or replace the bulb.NOTICE
ECA16581
Do not affix any type of tinte d film or
stickers to the hea dlig ht lens.
Specifie d fuses:
Main fuse 1: 50.0 A
Main fuse 2: 30.0 A
Headlight fuse: 25.0 A
Brake light fuse: 1.0 A
Signaling system fuse: 10.0 A
Ignition fuse: 20.0 A
Radiator fan motor fuse: 10.0 A × 2
Backup fuse: 7.5 A
Hazard fuse: 7.5 A
Fuel injection system fuse: 15.0 A
ABS control unit fuse: 7.5 A
ABS motor fuse: 30.0 A
ABS solenoid fuse: 20.0 A
Cruise control fuse: 1.0 A
Auxiliary DC jack fuse: 3.0 A
Windshield motor fuse: 20.0 A
Electronic throttle valve fuse: 7.5 A
U1MCE2E0.book Page 33 Monday, June 16, 2014 8:57 AM