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
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
Periodic maintenance and adjustment
7-15
1
2
3
4
5
67
8
9
10
11
12 10. Check the oil filler cap O-ring for
damage, and replace it if neces-
sary.
11. Install and tighten the oil filler cap.
12. 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.
13. Turn the engine off, wait a few min- utes until the oil settles, and then
check the oil level and correct it if
necessary.
14. Install the cowling and panel.
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):0.25 L (0.26 US qt, 0.22 Imp.qt)
Radiator (including all routes): 2.25 L (2.38 US qt, 1.98 Imp.qt)
BX4-9-E1_1.book 15 ページ 2018年4月27日 金曜日 午後4時3分
Periodic maintenance and adjustment7-24
1
2
3
4
5
678
9
10
11
12
EAU22583
Checking the br ake fluid levelBefore riding, check that the brake fluid
is above the minimum level mark.
Check the brake fluid level with the res-
ervoir in an upright position. Replenish
the brake fluid if necessary.NOTICE
ECA17641
Brake fluid may damage painted sur-
faces or plastic parts. Always cleanup spilled fluid immediately.
Front brake Rear brake
As the brake pads wear, it is normal for
the brake fluid level to gradually go
down.
A low brake fluid level may indicate
worn brake pads or brake system
leakage; therefore, be sure to
check the brake pads for wear and
the brake system for leakage.
If the brake fluid level goes down
suddenly, have a Yamaha dealer
check the cause before further rid-
ing.WARNING
EWA15991
Improper maintenance can result in
loss of braking ability. Observe
these precautions:
Insufficient brake fluid may al-
low air to enter the brake sys-
tem, reducing braking
performance.
Clean the filler cap before re-
moving. Use only DOT 4 brake
fluid from a sealed container.
Use only the specified brake flu-
id; otherwise, the rubber seals
may deteriorate, causing leak-
age.
Refill with the same type of
brake fluid. Adding a brake fluid
other than DOT 4 may result in a
harmful chemical reaction.
Be careful that water does not
enter the brake fluid reservoir
when refilling. Water will signifi-
cantly lower the boiling point of
the fluid and may result in vaporlock.
Specified brake fluid:
DOT 41. Minimum level mark
1
1. Minimum level mark
1
BX4-9-E1_1.book 24 ページ 2018年4月27日 金曜日 午後4時3分
Periodic maintenance and adjustment7-30
1
2
3
4
5
678
9
10
11
12
EAU23273
Checking the front forkThe condition and operation of the front
fork must be checked as follows at the
intervals specified in the periodic main-
tenance and lubrication chart.
To check the condition
Check the inner tubes for scratches,
damage and excessive oil leakage.
To check the operation 1. Place the vehicle on a level sur- face and hold it in an upright posi-
tion. WARNING! To avoid injury,
securely support the vehicle so
there is no danger of it falling
over.
[EWA10752]
2. While applying the front brake, push down hard on the handlebars
several times to check if the front
fork compresses and rebounds
smoothly.
NOTICE
ECA10591
If any damage is found or the front
fork does not operate smoothly,
have a Yamaha dealer check or re-pair it.
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 7-35.)
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.
BX4-9-E1_1.book 30 ページ 2018年4月27日 金曜日 午後4時3分
11-1
1
2
3
4
5
6
7
8
9
101112
Index
AABS warning light ................................... 4-6
Air filter element.................................... 7-17
Auxiliary DC connector ......................... 4-48
Auxiliary system warning light ................ 4-8BBattery .................................................. 7-31
Brake and clutch levers, checking and lubricating ........................................... 7-28
Brake and shift pedals, checking and
lubricating ........................................... 7-28
Brake fluid, changing ............................ 7-25
Brake fluid level, checking .................... 7-24
Brake lever ........................................... 4-32
Brake lever free play, checking ............ 7-22
Brake light switches .............................. 7-23
Brake pedal .......................................... 4-32
Brake system ........................................ 4-33CCables, checking and lubricating .......... 7-27
Canister ................................................ 7-12
Care ........................................................ 8-1
Catalytic converter ................................ 4-37
CCU ...................................................... 4-39
Clutch lever........................................... 4-31
Clutch lever free play, adjusting ........... 7-21
Coolant ................................................. 7-15
Cowlings and panels, removing and installing ............................................... 7-8DData recording, vehicle ......................... 10-2
Diagnostic connecto r ............................ 10-2
Dimmer switch ........................................ 4-4
Display, main screen .............................. 4-8 Display, menu screen ............................ 4-14
Document storage ................................. 4-40
Drive chain, cleaning
and lubricating .... 7-26
Drive chain slack ................................... 7-25
EEngine break-in ....................................... 6-3
Engine idling speed, checking............... 7-17
Engine oil and oil filter cartridge ............ 7-12
Engine serial number ............................ 10-1
Engine trouble warning light .................... 4-6
EXUP system ........................................ 4-47FFront and rear brake pads, checking .... 7-23
Front fork, adjusting .............................. 4-41
Front fork, checking............................... 7-30
Fuel ....................................................... 4-35
Fuel consumption, tips for reducing ........6-3
Fuel level warning light ............................4-6
Fuel tank cap......................................... 4-34
Fuel tank overflow hose ........................ 4-37
Fuses, replacing .................................... 7-33GGlossary ..................................................3-4HHandlebar 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 ................. 4-49
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 .... 7-4
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.................................. 4-41SSafety information ................................... 1-1
Seats..................................................... 4-38
Shift indicator light .................................. 4-7
Shifting .................................................... 6-2
Shift pedal ............................................. 4-31
Shock absorber assembly, adjusting .... 4-44
Sidestand .............................................. 4-48
Sidestand, checking and lubricating ..... 7-29
Spark plugs, checking ........................... 7-11
Special features ...................................... 3-1
Specifications.......................................... 9-1
Stability control indicator light ................. 4-7
Starting the engine.................................. 6-1
Steering, checking ................................ 7-30
Stop/Run/Start switch ............................. 4-4
Storage ................................................... 8-4
BX4-9-E1_1.book 1 ページ 2018年4月27日 金曜日 午後4時3分