Periodic maintenance and adjustment
7-12
1
2
3
4
5
67
8
9
10
11
12
EAU67110
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.
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/LMAR9E-J
1. Spark plug gapSpark plug gap: 0.6–0.7 mm (0.024–0.028 in)
Tightening torque: Spark plug (new):18 N·m (1.8 kgf·m, 13 lb·ft)
Spark plug (after checking):
13 N·m (1.3 kgf·m, 9.4 lb·ft)
1
1
BX4-9-E0.book 12 ページ 2016年12月1日 木曜日 午後8時7分
Periodic maintenance and adjustment7-13
1
2
3
4
5
678
9
10
11
12
EAU36112
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.
EAU66533
Engine oil and oil filter
cartridgeThe engine oil level should be checked
before each ride. In addition, the oil
must be changed and the oil filter car-
tridge replaced at the intervals speci-
fied in the periodic maintenance and
lubrication chart.
To check the engine oil level 1. Place the vehicle on a level sur- face and hold it in an upright posi-
tion. A slight tilt to the side can
result in a false reading.
2. Start the engine, warm it up for several minutes, and then turn it
off.
3. Wait a few minutes until the oil set- tles, and then check the oil level
through the check window located
at the bottom-left side of the crank-
case.TIPThe engine oil should be between theminimum and maximum level marks. 4. If the engine oil is at or below the
minimum level mark, add sufficient
oil of the recommended type to
raise it to the correct level.
To change the engine oil (with or
without oil filter cartridge replace-
ment) 1. Remove cowling A and panel B. (See page 7-9.)
2. Start the engine, warm it up for several minutes, and then turn it
off.
3. Place an oil pan under the engine to collect the used oil.
#4#3#2#1
FUEL TANK
THROTTLE BODY CHARCOAL
CANISTER
ATMOSPHERE
1. Engine oil level check window
2. Maximum level mark
3. Minimum level mark
2
3
1
BX4-9-E0.book 13 ページ 2016年12月1日 木曜日 午後8時7分
Periodic maintenance and adjustment7-15
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5
678
9
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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.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.
10. 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.
TIPAfter the engine is started, the oil pres-
sure and coolant temperature warning
light should go off if the oil level is suffi-cient.NOTICE
ECA22490
If the oil pressure and coolant tem-
perature warning light flickers or re-
mains on even if the oil level is
correct, immediately turn the engine
off and have a Yamaha dealer checkthe vehicle.
11. Turn the engine off, wait a few min- utes until the oil settles, and then
check the oil level and correct it if
necessary.
12. Install the cowling and panel.
1. Torque wrenchTightening torque: Oil filter cartridge:
17 N·m (1.7 kgf·m, 12 lb·ft)
Tightening torque: Engine oil drain bolt: 23 N·m (2.3 kgf·m, 17 lb·ft)
1
Recommended engine oil:
Full synthetic
10W-40, 15W-50
Oil quantity:
Oil change:3.90 L (4.12 US qt, 3.43 Imp.qt)
With oil filter removal:
4.10 L (4.33 US qt, 3.61 Imp.qt)
BX4-9-E0.book 15 ページ 2016年12月1日 木曜日 午後8時7分
Periodic maintenance and adjustment
7-16
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4
5
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9
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EAU20071
CoolantThe coolant level should be checked
before each ride. In addition, the cool-
ant must be changed at the intervals
specified in the periodic maintenance
and lubrication chart.
EAU66510
To check the coolant level 1. Place the vehicle on a level sur- face and hold it in an upright posi-
tion.TIP
The coolant level must be checked
on a cold engine since the level
varies with engine temperature.
Make sure that the vehicle is posi-
tioned straight up when checking
the coolant level. A slight tilt to theside can result in a false reading.
2. Check the coolant level in the cool- ant reservoir.
TIPThe coolant should be between theminimum and maximum level marks. 3. If the coolant is at or below the
minimum level mark, remove cowl-
ing B. (See page 7-9.)
4. Remove the coolant reservoir cap, add coolant to the maximum level
mark, and then install the reservoir
cap. WARNING! Remove only
the coolant reservoir cap. Never
attempt to remove the radiator
cap when the engine is
hot.
[EWA15162]
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 cowling.
1. Maximum level mark
2. Minimum level mark1
2
1. Coolant reservoir capCoolant reservoir capacity (up to the
maximum level mark):
0.25 L (0.26 US qt, 0.22 Imp.qt)
1
BX4-9-E0.book 16 ページ 2016年12月1日 木曜日 午後8時7分
11-1
1
2
3
4
5
6
7
8
9
1011
12
IndexAABS warning light.................................... 4-6
Air filter element .................................... 7-18
Auxiliary DC connector ......................... 4-46BBattery................................................... 7-33
Brake and clutch levers, checking and lubricating ........................................... 7-30
Brake and shift pedals, checking and lubricating ........................................... 7-29
Brake fluid, changing ............................ 7-26
Brake fluid level, checking .................... 7-25
Brake lever ............................................ 4-31
Brake lever free play, checking ............. 7-24
Brake light switches .............................. 7-24
Brake pedal ........................................... 4-31
Brake system ........................................ 4-32CCables, checking and lubricating .......... 7-29
Canister................................................. 7-13
Care ........................................................ 8-1
Catalytic converter ................................ 4-36
CCU ...................................................... 4-38
Clutch lever ........................................... 4-30
Clutch lever free play, adjusting ............ 7-23
Coolant.................................................. 7-16
Cowlings and panels, removing and installing................................................ 7-9DData recording, vehicle ......................... 10-2
Diagnostic connector ............................ 10-2
Dimmer switch ........................................ 4-4
Display, main screen............................... 4-9
Display, menu screen ........................... 4-15 Document storage ................................ 4-39
Drive chain, cleaning and lubricating .... 7-28
Drive chain slack .................................. 7-27
EEngine break-in ...................................... 6-3
Engine idling speed, checking .............. 7-19
Engine oil and oil fi
lter cartridge ........... 7-13
Engine serial number............................ 10-1
Engine trouble warning light ................... 4-6
EXUP system ....................................... 4-46FFront and rear brake pads, checking .... 7-25
Front fork, adjusting .............................. 4-40
Front fork, checking .............................. 7-31
Fuel....................................................... 4-34
Fuel consumption, tips for reducing........ 6-3
Fuel level warning light ........................... 4-6
Fuel tank breather hose and overflow hose ................................................... 4-36
Fuel tank cap ........................................ 4-33
Fuses, replacing ................................... 7-34GGlossary ................................................. 3-3HHandlebar switches ................................ 4-3
Hazard switch ......................................... 4-4
High beam indicator light ........................ 4-6
Horn switch ............................................. 4-4IIdentification numbers .......................... 10-1
Ignition circuit cut-off system ................ 4-47
Immobilizer system ................................. 4-1
Immobilizer system indicator light........... 4-7
Indicator lights and warning lights .......... 4-6
MMain switch/steering lock ........................ 4-2
Maintenance and lubrication, periodic..... 7-5
Maintenance, emission control system ... 7-3
Matte color, caution ................................. 8-1
Model label ............................................ 10-2NNeutral indicator light .............................. 4-6OOil pressure and coolant temperature warning light.......................................... 4-8PParking .................................................... 6-4
Part locations .......................................... 2-1
Pass/LAP switch ..................................... 4-4RRear view mirrors .................................. 4-40SSafety information ................................... 1-1
Seats ..................................................... 4-37
Shifting .................................................... 6-2
Shift pedal ............................................. 4-30
Shift timing indicator light ........................ 4-7
Shock absorber assembly, adjusting .... 4-42
Sidestand .............................................. 4-47
Sidestand, checking an d lubricating...... 7-31
Spark plugs, checking ........................... 7-12
Special features ...................................... 3-1
Specifications .......................................... 9-1
Stability control indicator light.................. 4-7
Starting the engine .................................. 6-1
Steering, checking................................. 7-32
Steering damper and suspension
warning light.......................................... 4-8
BX4-9-E0.book 1 ページ 2016年12月1日 木曜日 午後8時7分