Periodic maintenance and adjustment
6-2
6
EAU17303
Emission controls not only function to
ensure cleaner air, but are also vital to
proper engine operation and maximum
performance. In the following periodic
maintenance charts, the services relat-
ed to emissions control are grouped
separately. These services require
specialized data, knowledge, and
equipment. Maintenance, replace-
ment, or repair of the emission control
devices and systems may be per-
formed by any repair establishment or
individual that is certified (if applicable).
Yamaha dealers are trained and
equipped to perform these particular
services.
EAU85230
Tool kit
The tool kit is in the location shown.
The information included in this manual
and the tools provided in the tool kit are
intended to assist you in the perfor-
mance of preventive maintenance and
minor repairs. However, a torque
wrench and other tools are necessary
to perform certain maintenance work
correctly.
TIP
If you do not have the tools or experi-
ence required for a particular job, have
your Yamaha dealer perform it for you.
1. Tool kit
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Periodic maintenance and adjustment
6-10
6
EAU19653
Checking the spark plugs
The 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.
TIP
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
specified torque as soon as possible.
NOTICE
ECA10841
Do not use any tools to remove or in-
stall the spark plug cap, otherwise
the ignition coil coupler may get
damaged. The spark plug cap may
be difficult to remove because 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.
Specified spark plug:
NGK/CPR8EA-9
1. Spark plug gap
Spark plug gap:
0.8–0.9 mm (0.031–0.035 in)
Tightening torque:
Spark plug:
13 N·m (1.3 kgf·m, 9.6 lb·ft)
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Periodic maintenance and adjustment
6-13
6
TIP
Make 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.
TIP
Be sure to wipe off spilled oil on any
parts after the engine and exhaust sys-
tem have cooled down.
NOTICE
ECA11621
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. Check the O-ring for damage, and
replace it if necessary.
11. Install and tighten the engine oil
filler cap.
1. O-ring
1. Torque wrench
Tightening torque:
Oil filter cartridge:
17 N·m (1.7 kgf·m, 13 lb·ft)
Tightening torque:
Engine oil drain bolt:
43 N·m (4.3 kgf·m, 32 lb·ft)
1
Recommended engine oil:
See page 8-1.
Oil quantity:
Oil change:
3.80 L (4.02 US qt, 3.34 Imp.qt)
With oil filter removal:
4.00 L (4.23 US qt, 3.52 Imp.qt)
1. Engine oil filler cap
2. O-ring
2
1
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Periodic maintenance and adjustment
6-15
6
EAU20017
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 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 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.
TIP
Make 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.
2. Remove the final gear oil filler bolt
and its gasket, and then check the
oil level in the final gear case.
TIP
The oil level should be at the brim of
the filler hole.
3. If the oil is below the brim of the
filler hole, add sufficient oil of the
recommended 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 surfa-
ce.
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.
1. Final gear oil filler bolt
2. Gasket
3. Correct oil level
Tightening torque:
Final gear oil filler bolt:
23 N·m (2.3 kgf·m, 17 lb·ft)
3
2
1
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Periodic maintenance and adjustment
6-16
6 4. Install the final gear oil drain bolt
and its new gasket, and then tight-
en the bolt to the specified torque.
5. 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.
EAUS1203
Coolant
The coolant level should be checked
regularly. In addition, the coolant must
be changed at the intervals specified in
the periodic maintenance chart.
TIP
If genuine Yamaha coolant is not avail-
able, use an ethylene glycol antifreeze
containing corrosion inhibitors for alu-
minum engines and mix with distilled
water at a 1:1 ratio.
EAU54164To check the coolant level
1. Wait for the engine to cool. The
coolant level will vary with engine
temperature.
2. Place the vehicle on the center-
stand.
3. Remove the left cowling vent pan-
el. (See page 3-37.)
4. Look at the coolant reservoir.
1. Final gear oil filler bolt
2. Gasket
3. Final gear oil drain bolt
Tightening torque:
Final gear oil drain bolt:
23 N·m (2.3 kgf·m, 17 lb·ft)
Recommended final gear oil:
Yamaha genuine shaft drive gear oil
SAE 80W-90 API GL-5
Oil quantity:
0.20 L (0.21 US qt, 0.18 Imp.qt)
Tightening torque:
Final gear oil filler bolt:
23 N·m (2.3 kgf·m, 17 lb·ft)
1
2
32
Recommended coolant:
YAMALUBE coolant
Coolant quantity:
Coolant reservoir (max level mark):
0.25 L (0.26 US qt, 0.22 Imp.qt)
Radiator (including all routes):
2.60 L (2.75 US qt, 2.29 Imp.qt)
1. Coolant reservoir
2. Maximum level mark
3. Minimum level mark
2
1
3
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