Page 41 of 84
PERIODIC MAINTENANCE AND ADJUSTMENT
6-2
6
EAU39692
Owner’s tool kitThe owner’s tool kit is located on the
bottom of the seat. (See page 3-12.)
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
1
U2CME0E0.book Page 2 Friday, May 2, 2014 2:55 PM
Page 48 of 84

PERIODIC MAINTENANCE AND ADJUSTMENT
6-9
6To check the spark plu
g
1. Check that the porcelain insulator around the center electrode of the
spark plug is a medium-to-light
tan (the ideal color when the vehi-
cle is ridden normally).
TIPIf the spark plug shows a distinctly dif-
ferent color, the engine could be oper-
ating improperly. Do not attempt to
diagnose such problems yourself. In-
stead, have a Yamaha dealer check
the vehicle.
2. Check the spark plug for electrodeerosion and excessive carbon or
other deposits, and replace it if
necessary.
3. Measure the spark plug gap with a wire thickness gauge and, if nec-
essary, adjust the gap to specifi-
cation. To install the spark plu
g
1. Clean the surface of the spark plug gasket and its mating sur-
face, and then wipe off any grime
from the spark plug threads.
2. Install the spark plug with the spark plug wrench, and then tight-
en it to the specified torque.
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.3. Install the spark plug cap.
4. Install the panel.
1. Spark plug wrench
1
Specifie d spark plu g:
NGK/CR7E1. Spark plug gapSpark plu g g ap:
0.7–0.8 mm (0.028–0.031 in)
Ti ghtenin g torque:
Spark plug: 13 Nm (1.3 m·kgf, 9.4 ft·lbf)
U2CME0E0.book Page 9 Friday, May 2, 2014 2:55 PM
Page 50 of 84

PERIODIC MAINTENANCE AND ADJUSTMENT
6-11
64. Clean the engine oil strainer withsolvent, and then check it for
damage and replace it if neces-
sary.
5. Check the O-ring for damage and replace it if necessary.
6. Install the engine oil strainer, com- pression spring, O-ring and en-
gine oil drain bolt B.
TIPMake sure that the O-ring is properly
seated.
7. Install engine oil drain bolt A, andthen tighten both drain bolts to
their specified torques.
8. 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.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 la beled
“ENERGY CONSERVING II” or
hi gher.
Make sure that no forei gn mate-
rial enters the crankcase.
9. 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.
10. Turn the engine off, and then check the oil level and correct it if
necessary.
11. Reset the oil change tripmeter and oil change indicator “OIL
CHANGE”. (See page 3-6 for reset
procedures.)
1. Engine oil drain bolt A
2. Gasket
3. Oil strainer
4. Compression spring
5. O-ring
6. Engine oil drain bolt B
1
3456
2
Tightenin g torque:
Engine oil drain bolt A: 22 Nm (2.2 m·kgf, 16 ft·lbf)
Engine oil drain bolt B:
20 Nm (2.0 m·kgf, 14 ft·lbf)
Recommen ded en gine oil:
See page 8-1.
Oil quantity: 0.80 L (0.85 US qt, 0.70 Imp.qt)
U2CME0E0.book Page 11 Friday, May 2, 2014 2:55 PM
Page 51 of 84

PERIODIC MAINTENANCE AND ADJUSTMENT
6-12
6
EAU60660
Final transmission oilThe final transmission case must be
checked for oil leakage before each
ride. If any leakage is found, have a
Yamaha dealer check and repair the vehicle. In addition, the final transmis-
sion oil must be changed as follows at
the intervals specified in the periodic
maintenance and lubrication chart. 1. Start the engine, warm up the final transmission oil by riding the vehi-
cle for several minutes, and then
stop the engine.
2. Place the vehicle on the center- stand.
3. Place an oil pan under the final transmission case to collect the
used oil.
4. Remove the final transmission oil filler cap and its O-ring from the fi-
nal transmission case. 5. Remove the final transmission oil
drain bolt and its gasket to drain
the oil from the final transmission
case. 6. Install the final transmission oil
drain bolt and its new gasket, and
then tighten the bolt to the speci-
fied torque.
7. Refill with the specified amount of the recommended final transmis-
sion oil. WARNING! Make sure
that no forei gn material enters
the final transmission case.
Make sure that no oil gets on
the tire or wheel.
[EWA11312]
8. Install the final transmission oil fill- er cap and its new O-ring, and
then tighten the oil filler cap.
9. Check the final transmission case for oil leakage. If oil is leaking,
check for the cause.
1. Final transmission oil filler cap
2. O-ring
1. Final transmission oil drain bolt
2. Gasket
1
212
Tightenin g torque:
Final transmission oil drain bolt: 22 Nm (2.2 m·kgf, 16 ft·lbf)
Recommen ded final transmission
oil: See page 8-1.
Oil quantity: 0.20 L (0.21 US qt, 0.18 Imp.qt)
U2CME0E0.book Page 12 Friday, May 2, 2014 2:55 PM