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5. Install the oil filler bolt and its gasket, andthen tighten the bolt to the specified
torque.
Changing the final gear oil 1. Park the vehicle on a level surface.
2. Place an oil pan under the final gear case
to collect the used oil.
3. Remove the final gear oil filler bolt, the fi-
nal gear oil drain bolt and their gasket to
drain the oil. 4. Install the drain bolt and its new gasket,
and then tighten the bolt to the specified
torque.
5. Refill with the recommended final gear oil up to the brim of the filler hole.
6. Check the oil filler bolt gasket for dam- age, and replace it if necessary.Tightening torque:Final gear oil filler bolt:22 N·m (2.2 kgf·m, 16 lb·ft)
1. Final gear oil drain bolt
2. GasketTightening torque:Final gear oil drain bolt:22 N·m (2.2 kgf·m, 16 lb·ft)
21
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7. Install the oil filler bolt and its gasket, andthen tighten the bolt to the specified
torque.
8. Check for oil leakage. If oil leakage is found, check for the cause.EBU36064Differential gear oilCheck the oil level and change the differential
gear oil at the intervals specified in the period-
ic maintenance chart.NOTICEECB03600When checking or changing the differen-
tial gear oil, make sure that no foreign ma-
terial enters the differential gear case. If
necessary, clean the differential gear oil
filler bolt and surrounding area.
TIPIf the recommended gear oil is not available,
SAE 80W-90 API GL-4 or GL-5 hypoid gear
oil may be used instead. Checking the differential gear oil level 1. Park the vehicle on a level surface.
2. Remove the differential gear oil filler bolt and its gasket, and then check the oil lev-
el. It should be up to the brim of the filler
hole.
Tightening torque:Final gear oil filler bolt:22 N·m (2.2 kgf·m, 16 lb·ft)
Recommended oil:SAE 80 API GL-4 Hypoid gear oil
Oil quantity: 0.18 L (0.19 US qt, 0.16 Imp.qt)
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3. If the level is low, add sufficient oil of therecommended type to raise it to the
specified level.
4. Check the gasket for damage, and re- place it if necessary.
5. Install the differential gear oil filler bolt
and its gasket, and then tighten the bolt
to the specified torque. Changing the differential gear oil
1. Park the vehicle on a level surface.
2. Place an oil pan under the differential
gear case to collect the used oil.
3. Remove the differential gear oil filler bolt,
the differential gear oil drain bolt and their
gasket to drain the oil.1. Differential gear oil filler bolt
2. Gasket
3. Differential gear oil
4. Correct oil level
1
2
3
4
Tightening torque:Differential gear oil filler bolt:23 N·m (2.3 kgf·m, 17 lb·ft)1. Differential gear oil drain bolt
2. Gasket
1 2
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4. Install the differential gear oil drain boltand its new gasket, and then tighten the
bolt to the specified torque.
5. Refill the differential gear case with the recommended oil.
6. Check the oil filler bolt gasket for dam- age, and replace it if necessary.
7. Install the differential gear oil filler bolt and its gasket, and then tighten the bolt
to the specified torque.
8. Check for oil leakage. If oil leakage is found, check for the cause.
EBU35112CoolantThe coolant level should be checked regular-
ly. In addition, the coolant must be changed
at the intervals specified in the periodic main-
tenance chart.TIPIf genuine Yamaha coolant is not available,
use an ethylene glycol antifreeze containing
corrosion inhibitors for aluminum engines and
mix with distilled water at a 1:1 ratio.
Tightening torque:Differential gear oil drain bolt:9.8 N·m (0.98 kgf·m, 7.2 lb·ft)
Tightening torque: Differential gear oil filler bolt:23 N·m (2.3 kgf·m, 17 lb·ft)
Recommended coolant:YAMALUBE coolant
Coolant quantity: Coolant reservoir (up to full level):0.56 L (0.59 US qt, 0.49 Imp.qt)
Radiator (including all routes): 3.78 L (4.00 US qt, 3.33 Imp.qt)
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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 in-
stalling the 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. NOTICEECB02900Do not use any tools to remove or install
the spark plug cap, otherwise the ignition
coil coupler may be damaged. The spark
plug cap may be difficult to remove be-
cause the rubber seal on the end of the cap
fits tightly. To remove the spark plug cap,
simply twist it back and forth while pulling
it out; to install it, twist it back and forth
while pushing it in.
1. Spark plug gapSpark plug gap: 0.7–0.8 mm (0.028–0.031 in)
Tightening torque: Spark plug:13 N·m (1.3 kgf·m, 9.6 lb·ft)
1
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EBU38320Air filter maintenanceThis model is equipped with two air filter ele-
ments, a primary foam-type air filter and a
secondary paper-type air filter.
The primary air filter is easily accessed and
should be cleaned and oiled every 300–600
km (200–400 mi).
The secondary air filter is more difficult to ac-
cess, cannot be cleaned, and should be re-
placed by a Yamaha dealer every 2000–5000
km (1200–3000 mi).
TIPService the air filters more frequently when
operating in wet or dusty environments. Whenever air filter maintenance is performed:
check the air inlet for obstructions and the
air filter case for dirt and foreign matter.
check the air filter case check hoses for dirt
or water and clean as necessary.
check the air filter cas e joints and the rub-
ber joints to and from the throttle body for
proper fit and sealing.
tighten all fittings securely to avoid the pos-
sibility of unfiltered air entering the engine.NOTICEECB02270Never operate the engine with the air filter
element removed. Doing so would allow
unfiltered air to enter, causing rapid en-
gine wear and possible engine damage.
1. Primary air filter
2. Secondary air filter
1
2
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6. Wash the foam material in warm soapywater to remove remaining solvent, then
rinse thoroughly with plain warm water.
7. Squeeze out the excess water. NOTICE:
Do not twist the foam material when
squeezing it.
[ECB02970]
8. Allow the foam air filter to dry thoroughly.Inspect for wear and tear and replace if
damaged or heavily worn. 9. Thoroughly apply Yamalube foam air filter
oil (or other quality liquid foam air filter—
do not use a spray-type product) to the
foam material. The foam air filter element
should be wet but not dripping.
10. Pull the foam air filter element over its frame.
11. Install the air filter.
12. Install the air filter case cover and lock it
into place by turning the air filter case
cover lock clockwise.
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WARNING
EWB04160Improper maintenance can result in loss of
braking ability or YCC-S clutch operation.
Observe these precautions:
Insufficient brake or YCC-S clutch fluid
may allow air to enter the brake or
YCC-S clutch system, reducing braking
or YCC-S clutch performance.
Clean the filler caps before removing.
Use only DOT 4 brake fluid from a sealed
container.
Use only the specified brake fluid; other-
wise, the rubber seals may deteriorate,
causing leakage.
Refill with the same type of brake fluid.
Adding a brake fluid other than DOT 4
may result in a harmful chemical reac-
tion.
Be careful that water or dust does not
enter the brake or YCC-S clutch fluid
reservoir when refilling. Water will signif-
icantly lower the boiling point of the fluid
and may result in vapor lock.
NOTICEECB01161Brake fluid may damage painted surfaces
or plastic parts. Always clean up spilled
fluid immediately. As the brake pads wear, it is normal for the
brake fluid level to gradually go down. A low
brake fluid level may indicate worn brake
pads or brake system leakage; therefore, be
sure to check the brake pads for wear and the
brake system for leakage. A low YCC-S
clutch fluid level may indicate YCC-S clutch
system leakage; therefore, be sure to check
the YCC-S clutch system for leakage. If the
brake or YCC-S clutch fluid level goes down
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