Table of contentsSafety information........................... 1-1
Description ....................................... 2-1
Left view ......................................... 2-1
Right view ....................................... 2-2
Controls and instruments................ 2-3
Special features ............................... 3-1
YRC (Yamaha Ride Control) .......... 3-1
Glossary ......................................... 3-4
YRC functions visual guide............. 3-5
Instrument and co ntrol functions... 4-1
Immobilizer system ..... .................... 4-1
Main switch/steering lock................ 4-2
Handlebar switches ........................ 4-3
Indicator lights and warning lights ............................................ 4-6
Display ............................................ 4-8
MENU screen ............................... 4-14
Clutch lever................................... 4-31
Shift pedal..... ............................ .... 4-31
Brake lever ................................... 4-32
Brake pedal .................................. 4-32
Brake system ..... ....................... .... 4-33
Fuel tank cap ................................ 4-34
Fuel............................................... 4-35
Fuel tank overflow hose................ 4-37
Catalytic converter ........................ 4-37
Seats ............................................ 4-38
CCU (for equipped models) .......... 4-39 Document storage ........................ 4-40
Rear view mirrors ......................... 4-41
Adjusting the front fork ................. 4-41
Adjusting the shock absorber
assembly................................... 4-44
EXUP system ............................... 4-47
Auxiliary DC connector................. 4-48
Sidestand ..................................... 4-48
Ignition circuit cut- off system ........ 4-49
For your safety – pre-operation
checks .............................................. 5-1
Operation and important riding
points ................................................ 6-1
Starting the engine ......................... 6-1
Shifting ........................................... 6-2
Tips for reducing fuel consumption ............................... 6-3
Engine break-in .............................. 6-3
Parking ........................................... 6-4
Periodic maintenance and
adjustment ....................................... 7-1
Tool kit............................................ 7-2
Periodic maintenance charts .......... 7-3
Periodic maintenance chart for the emission control system ............. 7-3
General maintenance and lubrication chart .......................... 7-4 Removing and installing cowlings
and panels .................................. 7-8
Checking the spark plugs ............ 7-11
Canister ....................................... 7-12
Engine oil and oil filt er cartridge... 7-12
Coolant ........................................ 7-15
Air filter element ........................... 7-17
Checking the engine idling speed............ ............................ 7-17
Checking the throttle grip free play ........................................... 7-17
Valve clearance ........................... 7-18
Tires ............................................. 7-18
Cast magnesium wheels.............. 7-20
Adjusting the clutch lever free play ........................................... 7-21
Checking the brake lever free
play ........................................... 7-22
Brake light switches ..................... 7-23
Checking the front and rear
brake pads................................ 7-23
Checking the brake fluid level ...... 7-24
Changing the brake fluid .............. 7-25
Drive chain slack.......................... 7-25
Cleaning and lubricating the
drive chain ................................ 7-26
Checking and lubricating the cables ....................................... 7-27
Checking and lubricating the throttle grip and cable ............... 7-27BX4-9-E1_1.book 1 ページ 2018年4月27日 金曜日 午後4時3分
Instrument and control functions
4-2
1
2
34
5
6
7
8
9
10
11
12
ference.
EAU10474
Main switch/steering lockThe main switch/steering lock controls
the ignition and lighting systems, and is
used to lock the steering. The various
positions are described below.TIPBe sure to use the standard key (black
bow) for regular use of the vehicle. To
minimize the risk of losing the code
re-registering key (red bow), keep it in a
safe place and only use it for codere-registering.
EAU10552
ON
All electrical circuits are supplied with
power. The meter lighting, taillight, li- cense plate light and auxiliary lights
come on, and the engine can be start-
ed. The key cannot be removed.
TIPThe headlights come on automatically
when the engine is started and stay on
until the key is turned to “OFF”, even ifthe engine stalls.
EAU10662
OFF
All electrical systems are off. The key
can be removed.
WARNING
EWA10062
Never turn the key to “OFF” or
“LOCK” while the vehicle is moving.
Otherwise the electrical systems will
be switched off, which may result inloss of control or an accident.
EAU1068B
LOCK
The steering is locked and all electrical
systems are off. The key can be re-
moved.
P
ON
OFF
LOCK
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Instrument and control functions
4-35
1
2
345
6
7
8
9
10
11
12
less the key is in the lock. In addition,
the key cannot be removed if the cap is
not properly closed and locked.
WARNING
EWA11092
Make sure that the fuel tank cap is
properly closed after filling fuel.Leaking fuel is a fire hazard.
EAU13222
FuelMake sure there is sufficient gasoline in
the tank.
WARNING
EWA10882
Gasoline and gasoline vapors are
extremely flammable. To avoid fires
and explosions and to reduce the
risk of injury when refueling, followthese instructions.
1. Before refueling, turn off the en- gine and be sure that no one is sit-
ting on the vehicle. Never refuel
while smoking, or while in the vi-
cinity of sparks, open flames, or
other sources of ignition such as
the pilot lights of water heaters and
clothes dryers.
2. Do not overfill the fuel tank. When refueling, be sure to insert the
pump nozzle into the fuel tank filler
hole. Stop filling when the fuel
reaches the bottom of the filler
tube. Because fuel expands when
it heats up, heat from the engine or
the sun can cause fuel to spill out
of the fuel tank. 3. Wipe up any spilled fuel immedi-
ately. NOTICE: Immediately wipe
off spilled fuel with a clean, dry,
soft cloth, since fuel may deteri-
orate painted surfaces or plastic
parts.
[ECA10072]
4. Be sure to securely close the fuel tank cap.
WARNING
EWA15152
Gasoline is poisonous and can
cause injury or death. Handle gaso-
line with care. Never siphon gaso-
line by mouth. If you should swallow
some gasoline or inhale a lot of gas-
oline vapor, or get some gasoline in1. Fuel tank filler tube
2. Maximum fuel level
1
2
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Instrument and control functions
4-48
1
2
34
5
6
7
8
9
10
11
12
EAU70641
Auxiliary DC connectorThis vehicle is equipped with an auxilia-
ry DC connector. Consult your Yamaha
dealer before installing any accesso-
ries.
EAU15306
SidestandThe sidestand is located on the left side
of the frame. Raise the sidestand or
lower it with your foot while holding the
vehicle upright.TIPThe built-in sidestand switch is part of
the ignition circuit cut-off system, which
cuts the ignition in certain situations.
(See the following section for an expla-
nation of the ignition circuit cut-off sys-tem.)
WARNING
EWA10242
The vehicle must not be ridden with
the sidestand down, or if the sides-
tand cannot be properly moved up
(or does not stay up), otherwise the
sidestand could contact the ground
and distract the operator, resulting
in a possible loss of control.
Yamaha’s ignition circuit cut-off
system has been designed to assist
the operator in fulfilling the respon-
sibility of raising the sidestand be-
fore starting off. Therefore, check
this system regularly and have a Yamaha dealer repair it if it does not
function properly.
BX4-9-E1_1.book 48 ページ 2018年4月27日 金曜日 午後4時3分
Instrument and control functions
4-49
1
2
345
6
7
8
9
10
11
12
EAU57952
Ignition circuit cut-off systemThis system prevents in-gear engine
starts unless the clutch lever is pulled
and the sidestand is up. Also, it will stop
the running engine should the sides-
tand be lowered while the transmission
is in gear.
Periodically check this system via the
following procedure.TIP
This check is most reliable if per-
formed with a warmed-up engine.
See pages 4-2 and 4-3 for switchoperation information.
BX4-9-E1_1.book 49 ページ 2018年4月27日 金曜日 午後4時3分
For your safety – pre-operation checks
5-3
1
2
3
456
7
8
9
10
11
12
Air intake duct Make sure that the air intake duct is not blocked.
Remove any foreign objects from the screen if necessary. —
Instruments, lights, signals
and switches Check operation.
Correct if necessary.
—
Sidestand switch Check operation of ignition
circuit cut-off system.
If system is not working correctl y, have Yamaha dealer check vehicle. 4-48
ITEM CHECKS PAGE
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6-1
1
2
3
4
56
7
8
9
10
11
12
Operation and important riding points
EAU15952
Read the Owner’s Manual carefully to
become familiar with all controls. If
there is a control or function you do not
understand, ask your Yamaha dealer.
WARNING
EWA10272
Failure to familiarize yourself with
the controls can lead to loss of con-
trol, which could cause an accidentor injury.
EAU73461
TIPThis model is equipped with:
an inertial measurement unit (IMU)
that will stop the engine in case of
turnover. In this case, turn the
main switch off (and then back on)
before attempting to restart the en-
gine. Failing to do so will prevent
the engine from starting even
though the engine will crank when
the start switch is pushed.
an engine auto-stop system. The
engine stops automatically if left
idling for 20 minutes. In this case,
simply push the start switch to re-start the engine.
EAU79303
Starting the engineIn order for the ignition circuit cut-off
system (page 4-49) to enable starting,
one of the following conditions must be
met:
The transmission is in the neutral
position.
The transmission is in gear with
the clutch lever pulled and the sid-
estand up.
To start the engine
1. Insert the key into the main switch.
2. Set the Stop/Run/Start switch to “”.
3. Turn the main switch (key) to “ON”.
4. Confirm the following warning lights and indicator lights perform a
self-check.
Engine trouble warning light
Oil pressure and coolant tem-
perature warning light
ABS warning light
Fuel level warning light
Auxiliary system warning light
Shift indicator light
Stability control indicator light
BX4-9-E1_1.book 1 ページ 2018年4月27日 金曜日 午後4時3分
Periodic maintenance and adjustment
7-11
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, 9.6 lb·ft)
1
1
BX4-9-E1_1.book 11 ページ 2018年4月27日 金曜日 午後4時3分