Page 48 of 94
PERIODIC MAINTENANCE AND ADJUSTMENT
6-2
1
2
3
4
5
6
7
8
9
EAU17391
Owner’s tool kit
The owner’s tool kit is located under the
seat. (See page 3-19.)
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.
TIP
If you do not have the tools or experi-
ence required for a particular job, have
a Yamaha dealer perform it for you.
1. Helmet holding cable
2. Owner’s tool kit
12
Page 56 of 94
PERIODIC MAINTENANCE AND ADJUSTMENT
6-10
1
2
3
4
5
6
7
8
9
EAU19642
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.
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 speci-
fied torque as soon as possible.
Specified spark plug:
NGK/CR7E
1. Spark plug gap
Spark plug gap:
0.7–0.8 mm (0.028–0.031 in)
Tightening torque:
Spark plug:
13 Nm (1.3 m·kgf, 9.4 ft·lbf)
Page 59 of 94
PERIODIC MAINTENANCE AND ADJUSTMENT
6-13
2
3
4
5
67
8
9
TIP
Make sure that the O-ring is properly
seated.
8. Install the new oil filter cartridge,
and then tighten it to the specified
torque with a torque wrench.9. Install the engine oil drain bolt and
its new gasket, and then tighten
the bolt to the specified torque.
10. Refill with the specified amount of
the recommended engine oil, and
then install and tighten the oil filler
cap.
TIP
Be sure to wipe off spilled oil on any
parts after the engine and exhaust sys-
tem have cooled down.
NOTICE
ECA11620
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.
1. O-ring
1
1. Torque wrench
Tightening torque:
Oil filter cartridge:
17 Nm (1.7 m·kgf, 12.3 ft·lbf)
Tightening torque:
Engine oil drain bolt:
43 Nm (4.3 m·kgf, 31.1 ft·lbf)
1
Recommended engine oil:
See page 8-1.
Oil quantity:
Without oil filter cartridge replace-
ment:
2.80 L (2.96 US qt, 2.46 Imp.qt)
With oil filter cartridge replacement:
2.90 L (3.07 US qt, 2.55 Imp.qt)
Page 60 of 94
PERIODIC MAINTENANCE AND ADJUSTMENT
6-14
1
2
3
4
5
6
7
8
9
11. Start the engine, and then let it idle
for several minutes while checking
it for oil leakage. If oil is leaking, im-
mediately turn the engine off and
check for the cause.
12. Turn the engine off, and then
check the oil level and correct it if
necessary.
13. Reset the oil change indicator.
(See page 3-9.)
TIP
If the engine oil is changed before the
oil change indicator comes on (i.e. be-
fore the periodic oil change interval has
been reached), the indicator must be
reset after the oil change for the next
periodic oil change to be indicated at
the correct time.
EAU19997
Chain drive oil
The chain drive oil should be changed
as follows at the intervals specified in
the periodic maintenance and lubrica-
tion chart.
1. Place the vehicle on a level sur-
face.
2. Remove panel E. (See page 6-7.)
3. Place an oil pan under the chain
drive case to collect the used oil.
4. Remove the chain drive oil filler
cap, the chain drive oil drain bolt
and its gasket to drain the oil from
the chain drive case.5. Install the chain drive oil drain bolt
and its new gasket, and then tight-
en the bolt to the specified torque.
6. Refill with the specified amount of
the recommended oil.
7. Wipe the dipstick clean, insert it
into the oil filler hole (without
screwing it in), and then remove it
to check the oil level.
TIP
The chain drive oil should be between
the tip of the dipstick and the maximum
level mark.
1. Chain drive oil filler cap
2. Chain drive oil drain bolt
3. Gasket
1
23
Tightening torque:
Chain drive oil drain bolt:
20 Nm (2.0 m·kgf, 14.5 ft·lbf)
Recommended chain drive oil:
See page 8-1.
Oil quantity:
0.70 L (0.74 US qt, 0.62 Imp.qt)
Page 69 of 94
PERIODIC MAINTENANCE AND ADJUSTMENT
6-23
2
3
4
5
67
8
9
stalling the bolts, then tightening
them to the specified torque.
NOTICE
ECA12822
Do not apply the rear brake or rear
brake lock after the brake caliper
has been removed, otherwise the
brake caliper piston will be forced
out.
EAU40260
Checking the brake fluid level
Front brake
Rear brake
Insufficient brake fluid may allow air to
enter the brake system, possibly caus-ing it to become ineffective.
Before riding, check that the brake fluid
is above the minimum level mark and
replenish if necessary. A low brake fluid
level may indicate worn brake pads
and/or brake system leakage. If the
brake fluid level is low, be sure to check
the brake pads for wear and the brake
system for leakage.
Observe these precautions:
When checking the fluid level,
make sure that the top of the brake
fluid reservoir is level.
Use only the recommended quality
brake fluid, otherwise the rubber
seals may deteriorate, causing
leakage and poor braking perfor-
mance.
Refill with the same type of brake
fluid. Mixing fluids may result in a
harmful chemical reaction and
lead to poor braking performance.
Be careful that water or dust does
not enter the brake fluid reservoir
when refilling. Water will signifi-
Tightening torque:
Brake caliper bolt:
40 Nm (4.0 m·kgf, 28.9 ft·lbf)
1. Minimum level mark
1. Minimum level mark
1
1
Recommended brake fluid:
DOT 4
