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EAU17361
Owner’s tool kit The owner’s tool kit is located under the
rider seat. (See page 3-32.)
The service information included in this
manual and the tools provided in the
owner’s tool kit are intended to assist
you in the performance of preventive
maintenance and minor repairs. How-
ever, additional tools such as a torque
wrench may be necessary to perform
certain maintenance work correctly.TIPIf you do not have the tools or experi-
ence required for a particular job, have
a Yamaha dealer perform it for you.1. Owner’s tool kit
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EAU19652
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.
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.NOTICE
ECA10840
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 gapSpark plug gap:0.8–0.9 mm (0.031–0.035 in)
Tightening torque: Spark plug:13 Nm (1.3 m·kgf, 9.4 ft·lbf)
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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
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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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. 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.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. Gasket
3. Final gear oil drain bolt
12
3
2
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)
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