Page 71 of 122
PERIODIC MAINTENANCE AND ADJUSTMENT
6-2
6
EAU17362
Owner’s tool kitThe owner’s tool kit is located under
the rider seat. (See page 3-33.)
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
U2PDE1E0.book Page 2 Thursday, July 10, 2014 5:19 PM
Page 80 of 122

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)
U2PDE1E0.book Page 11 Thursday, July 10, 2014 5:19 PM
Page 82 of 122

PERIODIC MAINTENANCE AND ADJUSTMENT
6-13
6
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
Tightenin g torque:
Oil filter cartridge:
17 Nm (1.7 m·kgf, 12 ft·lbf)
Ti ghtenin g torque:
Engine oil drain bolt: 43 Nm (4.3 m·kgf, 31 ft·lbf)
Recommen ded en gine 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)
U2PDE1E0.book Page 13 Thursday, July 10, 2014 5:19 PM
Page 84 of 122

PERIODIC MAINTENANCE AND ADJUSTMENT
6-15
62. 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 thefiller 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 chan
ge 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
Tightenin g 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
Ti ghtenin g torque:
Final gear oil drain bolt:
23 Nm (2.3 m·kgf, 17 ft·lbf)
Recommen ded 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)
Ti ghtenin g torque:
Final gear oil filler bolt: 23 Nm (2.3 m·kgf, 17 ft·lbf)
U2PDE1E0.book Page 15 Thursday, July 10, 2014 5:19 PM