Periodic maintenance and adjustment
7-11
1
2
3
4
5
67
8
9
10
11
12
13
EAU19653
Checking the spark plugsThe 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 wheninstalling 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
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, twistit back and forth while pushing it in.
Specified spark plug:
NGK/LMAR9A-9
1. Spark plug gapSpark 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)
BEA-28199-E0.book 11 ページ 2021年12月1日 水曜日 午後7時8分
Periodic maintenance and adjustment7-12
1
2
3
4
5
678
9
10
11
12
13
EAU36113
CanisterThis model is equipped with a canister
to prevent the discharging of fuel vapor
into the atmosphere. Before operating
this vehicle, make sure to check the fol-
lowing:
Check each hose connection.
Check each hose and canister for
cracks or damage. Replace if dam-
aged.
Make sure that the canister breath-
er is not blocked, and if necessary,
clean it.
EAU94920
Engine oilThe engine oil level should be checked
regularly. In addition, the oil must be
changed and the oil filter cartridge re-
placed at the intervals specified in the
periodic maintenance chart.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. To check the engine oil level
1. After warming up the engine, wait a few minutes for the oil level to
settle for an accurate reading.
2. With the vehicle on a level surface, hold it upright for an accurate read-
ing.
3. Look at the check window located at the bottom-right side of the
crankcase.
TIPThe engine oil should be between theminimum and maximum level marks.
4. If the engine oil is at or below the
1. Canister
2. Canister breather
3. Fuel tank overflow hose
1 1 1
2 2
3 3
Recommended engine oil: See page 9-1.
Oil quantity: Oil change:2.80 L (2.96 US qt, 2.46 Imp.qt)
With oil filter removal: 3.20 L (3.38 US qt, 2.82 Imp.qt)
1. Engine oil filler cap
2. Engine oil level check window
3. Maximum level mark
4. Minimum level mark
11
21
2
34
BEA-28199-E0.book 12 ページ 2021年12月1日 水曜日 午後7時8分
Periodic maintenance and adjustment
7-13
1
2
3
4
5
67
8
9
10
11
12
13 minimum level mark, remove the
oil filler cap and add oil.
5. Check the engine oil filler cap O-ring. Replace if damaged.
6. Install the engine oil filler cap.
EAU85450
Why YamalubeYAMALUBE oil is a Genuine YAMAHA
Part born of the engineers’ passion and
belief that engine oil is an important liq-
uid engine component. We form teams
of specialists in the fields of mechanical
engineering, chemistry, electronics and
track testing, and have them develop
the engine together with the oil it will
use. Yamalube oils take full advantage
of the base oil’s qualities and blend in
the ideal balance of additives to make
sure the final oil clears our performance
standards. Thus, Yamalube mineral,
semisynthetic and synthetic oils have
their own distinct characters and value.
Yamaha’s experience gained over
many years of research and develop-
ment into oil since the 1960’s helps
make Yamalube the best choice for
your Yamaha engine.
EAUS1203
CoolantThe coolant level should be checked
regularly. In addition, the coolant must
be changed at the intervals specified in
the periodic maintenance chart.TIPIf genuine Yamaha coolant is not avail-
able, use an ethylene glycol antifreeze
containing corrosion inhibitors for alu-
minum engines and mix with distilledwater at a 1:1 ratio.
EAU20097
To check the coolant level
Since the coolant level varies with en-
gine temperature, check when the en-
gine is cold. 1. Park the vehicle on a level surface.
2. With the vehicle in an upright posi- tion, look at the coolant level in the
1. Engine oil filler cap
2. O-ring
21
Recommended coolant:YAMALUBE coolant
Coolant quantity: Coolant reservoir (max level mark):0.28 L (0.30 US qt, 0.25 Imp.qt)
Radiator (including all routes): 1.72 L (1.82 US qt, 1.51 Imp.qt)
BEA-28199-E0.book 13 ページ 2021年12月1日 水曜日 午後7時8分
Periodic maintenance and adjustment7-14
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2
3
4
5
678
9
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11
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13
reservoir.
3. If the coolant is at or below the minimum level mark, remove the
coolant reservoir cap. WARNING!
Remove only the coolant reser-
voir cap. Never attempt to re-
move the radiator cap when the
engine is hot.
[EWA15162]
4. Add coolant to the maximum level mark. NOTICE: If coolant is not
available, use distilled water or
soft tap water instead. Do not
use hard water or salt water
since it is harmful to the engine.
If water has been used instead
of coolant, replace it with cool-
ant as soon as possible, other-
wise the cooling system will not
be protected against frost and
corrosion. If water has been
added to the coolant, have a
Yamaha dealer check the anti-
freeze content of the coolant as
soon as possible, otherwise the
effectiveness of the coolant will be reduced.
[ECA10473]
5. Install the coolant reservoir cap.
EAU33032
Changing the coolant
The coolant must be changed at the in-
tervals specified in the periodic mainte-
nance and lubrication chart. Have a
Yamaha dealer change the coolant.
WARNING! Never attempt to remove
the radiator cap when the engine is
hot.
[EWA10382]
1. Coolant reservoir
2. Maximum level mark
3. Minimum level mark
111
2233
1. Coolant reservoir cap
111
BEA-28199-E0.book 14 ページ 2021年12月1日 水曜日 午後7時8分
Periodic maintenance and adjustment
7-15
1
2
3
4
5
67
8
9
10
11
12
13
EAU36765
Air filter elementThe air filter element must be replaced
at the intervals specified in the periodic
maintenance and lubrication chart.
Have a Yamaha dealer replace the air
filter element.
EAU44735
Checking the engine idling
speedCheck the engine idling speed and, if
necessary, have it corrected by a
Yamaha dealer.
EAU21403
Valve clearanceThe valves are an important engine
component, and since valve clearance
changes with use, they must be
checked and adjusted at the intervals
specified in the periodic maintenance
chart. Unadjusted valves can result in
improper air-fuel mixture, engine noise,
and eventually engine damage. To pre-
vent this from occurring, have your
Yamaha dealer check and adjust the
valve clearance at regular intervals.TIPThis service must be performed whenthe engine is cold.
Engine idling speed: 1200–1400 r/min
BEA-28199-E0.book 15 ページ 2021年12月1日 水曜日 午後7時8分
Periodic maintenance and adjustment
7-23
1
2
3
4
5
67
8
9
10
11
12
13
EAU22762
Drive chain slackThe drive chain slack should be
checked before each ride and adjusted
if necessary.
EAU97540
To check the drive chain slack 1. Place the motorcycle on the sides- tand.TIPWhen checking and adjusting the drive
chain slack, there should be no weighton the motorcycle.
2. Shift the transmission into the neu- tral position.
3. Find the center point of the chain (position B) by measuring (approx.
53 mm (2.09 in)) forward from the
edge of the drive chain guard as
shown. 4. Push down on the center of the
drive chain and measure the dis-
tance A from the drive chain guard
to the middle of the chain link being
pressed down at position B. 5. If distance A is incorrect, adjust it
as follows. NOTICE: Improper
drive chain slack will overload
the engine as well as other vital
parts of the motorcycle and can
lead to chain slippage or break-
age. If distance A is more than
55.0 mm (2.17 in), the chain can
damage the frame, swingarm,
and other parts. To prevent this
from occurring, keep the drive
chain slack within the specified
limits.
[ECA23070]
EAU74260
To adjust the drive chain slack
Consult a Yamaha dealer before ad-
justing the drive chain slack.1. Loosen the axle nut and the lock- nut on each side of the swingarm.
1. Edge of the drive chain guard
2. Position B
1. Drive chain guard
2. Distance A2 1
21
Distance A:
45.0–50.0 mm (1.77–1.97 in)
BEA-28199-E0.book 23 ページ 2021年12月1日 水曜日 午後7時8分
Periodic maintenance and adjustment
7-25
1
2
3
4
5
67
8
9
10
11
12
13
EAU23027
Cleaning and l ubricating the
drive chainThe drive chain must be cleaned and
lubricated at the intervals specified in
the periodic maintenance and lubrica-
tion chart, otherwise it will quickly wear
out, especially when riding in dusty or
wet areas. Service the drive chain as
follows.NOTICE
ECA10584
The drive chain must be lubricated
after washing the motorcycle, ridingin the rain or riding in wet areas.
1. Clean the drive chain with a drive chain cleaner and a small soft
brush. NOTICE: To prevent dam-
aging the O-rings, do not clean
the drive chain with steam
cleaners, high-pressure wash-
ers or inappropriate sol-
vents.
[ECA11122]
2. Wipe the drive chain dry.
3. Thoroughly lubricate the drive chain with a special O-ring chain
lubricant. NOTICE: Do not use
engine oil or any other lubri- cants for the drive chain, as they
may contain substances that
could damage the O-rings.
[ECA11112]
EAU23098
Checking and lubricating the
cablesThe operation of all control cables and
the condition of the cables should be
checked before each ride, and the ca-
bles and cable ends should be lubricat-
ed if necessary. If a cable is damaged
or does not move smoothly, have a
Yamaha dealer check or replace it.
WARNING! Damage to the outer
housing of cables may result in in-
ternal rusting and cause interfer-
ence with cable movement. Replace
damaged cables as soon as possi-
ble to prevent unsafe condi-
tions.
[EWA10712]
Recommended lubricant:
Yamaha cable lubricant or other suit-
able cable lubricant
BEA-28199-E0.book 25 ページ 2021年12月1日 水曜日 午後7時8分
Periodic maintenance and adjustment
7-29
1
2
3
4
5
67
8
9
10
11
12
13
EAU23285
Checking the steeringWorn or loose steering bearings may
cause danger. Therefore, the operation
of the steering must be checked as fol-
lows at the intervals specified in the pe-
riodic maintenance and lubrication
chart. 1. Raise the front wheel off the ground. (See page 7-34.)
WARNING! To avoid injury, se-
curely support the vehicle so
there is no danger of it falling
over.
[EWA10752]
2. Hold the lower ends of the frontfork legs and try to move them for-
ward and backward. If any free
play can be felt, have a Yamaha
dealer check or repair the steering.
EAU23292
Checking the w heel bearingsThe front and rear wheel bearings must
be checked at the intervals specified in
the periodic maintenance and lubrica-
tion chart. If there is play in the wheel
hub or if the wheel does not turn
smoothly, have a Yamaha dealer check
the wheel bearings.
EAU96251
BatteryNOTICE
ECA22960
Use only the specified genuine
YAMAHA battery. Using a different
battery may cause the IMU to fail andthe engine to stall.
The battery is located under the seat.
(See page 4-26.)NOTICE
ECA22970
The IMU is located under the battery.
It is not user serviceable and very
sensitive, so we advise against re-1. Positive battery lead (red)
2. Battery
3. Negative battery lead (black)
1 1 1
2 2
3 3
BEA-28199-E0.book 29 ページ 2021年12月1日 水曜日 午後7時8分