check engine light YAMAHA NIKEN GT 2019 Owners Manual

Table of contentsSafety information ............................ 1-1
Description ....................................... 2-1
Left view ......................................... 2-1
Right view ....................................... 2-2
Controls and instruments ............... 2-3
Instrument an d control functions ... 3-1
Immobilizer system......................... 3-1
Main switch/steering lock............... 3-2
Handlebar switches ........................ 3-3
Indicator lights and warning lights............................................ 3-5
Cruise control system..................... 3-8
Multi-function meter unit .............. 3-11
D-mode (drive mode).................... 3-19
Clutch lever .................................. 3-19
Shift pedal .................................... 3-20
Quick shift system ........................ 3-20
Brake lever.................................... 3-21
Brake pedal .................................. 3-21
ABS .............................................. 3-21
Traction control system ................ 3-22
Fuel tank cap ................................ 3-24
Fuel ............................................... 3-25
Fuel tank overflow hose ............... 3-27
Catalytic converter ....................... 3-27
Seats ............................................ 3-28
Helmet holding cable.................... 3-29
Storage compartment .................. 3-30
Rear view mirrors.......................... 3-31 Adjusting the front fork ................. 3-31
Adjusting the shock absorber
assembly.................................... 3-32
Auxiliary DC jacks ......................... 3-34
Sidestand ...................................... 3-35
Ignition circuit cut-off system ....... 3-35
For your safety – pre-operation
checks ............................................... 4-1
Operation an d important ri din g
points ................................................. 5-1
Starting the engine .......................... 5-1
Shifting ............................................ 5-2
Tips for reducing fuel consumption ................................ 5-4
Engine break-in ............................... 5-4
Parking ............................................ 5-5
Perio dic maintenance an d
a d justment ........................................ 6-1
Tool kit ............................................ 6-2
Periodic maintenance charts .......... 6-3
Periodic maintenance chart for the emission control system .............. 6-3
General maintenance and
lubrication chart ........................... 6-5
Removing and installing the panel ............................................ 6-9
Checking the spark plugs ............. 6-10
Canister ......................................... 6-11 Engine oil ...................................... 6-11
Why Yamalube.............................. 6-13
Coolant ......................................... 6-14
Air filter element ............................ 6-15
Checking the engine idling
speed ........................................ 6-15
Checking the throttle grip free play ............................................ 6-16
Valve clearance............................. 6-16
Tires .............................................. 6-16
Cast wheels .................................. 6-19
Adjusting the clutch lever free play ............................................ 6-19
Checking the brake lever free
play ............................................ 6-20
Brake light switches ..................... 6-20
Checking the front and rear brake pads ................................ 6-21
Checking the brake fluid level ...... 6-22
Changing the brake fluid .............. 6-23
Drive chain slack........................... 6-23
Cleaning and lubricating the drive chain ................................. 6-25
Checking and lubricating the cables ........................................ 6-25
Checking and lubricating the
throttle grip and cable ............... 6-26
Checking and lubricating the brake and shift pedals............... 6-26
Checking and lubricating the brake and clutch levers ............. 6-27UB5BE0E0.book Page 1 Friday, September 7, 2018 10:34 AM

Instrument and control functions
3-6
3
el warning light will flash repeatedly. If
this occurs, have a Yamaha dealer
check the vehicle.
TIPWhen the vehicle is turned on, this light
will come on for a few seconds and
then go off. If the light does not come
on, or if the light remains on after con-
firming that the oil level is correct (see
page 6-11), have a Yamaha dealer
check the vehicle.
EAU58402
Cruise control in
dicator li ghts “ ”
an d “SET”
These indicator lights come on when
the cruise control system is activated.
(See page 3-8.)TIPWhen the vehicle is turned on, these
lights should come on for a few sec-
onds and then go off. If the lights do
not come on, have a Yamaha dealer
check the vehicle.
EAU11449
Coolant temperature warnin g
li g ht “ ”
This warning light comes on when the
engine is overheating. If this occurs,
stop the engine immediately and allow
the engine to cool. (See page 6-36.)
For vehicles with a radiator fan, the ra-
diator fan(s) automatically switch on or
off according to the coolant tempera-
ture.TIPWhen the vehicle is turned on, the light
will come on for a few seconds, and
then go off. If the light does not come
on, or if the light remains on, have a
Yamaha dealer check the vehicle. NOTICE
ECA10022
Do not continue to operate the en-
g ine if it is overheatin g.
EAU79310
En gine trou ble warnin g li ght “ ”
This warning light comes on if a prob-
lem is detected in the engine. If this oc-
curs, have a Yamaha dealer check the
on-board diagnostic system. The electrical circuit of the warning
light can be checked by turning the ve-
hicle power on. The warning light
should come on for a few seconds,
and then go off.
If the warning light does not come on at
all, or if the warning light remains on,
have a Yamaha dealer check the vehi-
cle.
EAU69892
ABS warnin
g lig ht “ ”
This warning light comes on when the
vehicle is first turned on, and goes off
after starting riding. If the warning light
comes on while riding, the anti-lock
brake system may not work correctly.
(See page 3-21.)TIPIf the light does not come at all, or if the
light does not go off after traveling 10
km/h (6 mi/h), have a Yamaha dealer
check the vehicle.
WARNING
EWA16041
If the ABS warning light does not go
off after travelin g at a speed of 10
km/h (6 mi/h) or hi gher, or if the
ABS
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Instrument and control functions
3-7
3 warnin
g li ght comes on or flashes
while ri din g, the b rake system re-
verts to conventional brakin g. If ei-
ther of the ab ove occurs, or if the
warnin g li ght does not come on at
all, use extra caution to avoi d possi-
b le wheel lock during emer gency
b rakin g. Have a Yamaha d ealer
check the brake system an d electri-
cal circuits as soon as possi ble.
EAU73272
Traction control system in dicator
li g ht “ ”
In normal operation, this indicator light
is off. When traction control has en-
gaged, this indicator light will flash for
a few seconds and then go off.
When the traction control system is
turned off, this indicator light will come
on.
If the traction control system becomes
disabled while riding, or if a problem is
detected in the traction control system,
this indicator light and the engine trou-
ble warning light will come on. (See
page 3-22 for an explanation of the
traction control system.)
EAU74091
Shift in dicator li ght
This indicator light can be set to come
on and go off at select engine speeds.
(See page 3-17.)TIPWhen the vehicle is turned on, the light
should come on for a few seconds and
then go off. If the light does not come
on, or if the light remains on, have a
Yamaha dealer check the vehicle.
EAU73120
Immo bilizer system in dicator
li g ht “ ”
When the key is turned to “OFF” and
30 seconds have passed, the indicator
light will flash steadily to indicate the
immobilizer system is enabled. After 24
hours have passed, the indicator light
will stop flashing, however the immobi-
lizer system is still enabled.
The electrical circuit of the indicator
light can be checked by turning the key
to “ON”. The indicator light should
come on for a few seconds, and then
go off.
If the indicator light does not come on
initially when the key is turned to “ON”,
if the indicator light remains on, or if the
indicator light flashes in a pattern (if a
problem is detected in the immobilizer
system, the immobilizer system indica-
tor light will flash in a pattern), have a
Yamaha dealer check the vehicle.
1. Engine trouble warning light “ ”
2. Traction control system indicator light “ ”
1
2
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Instrument and control functions
3-13
3 4. Push the “MENU” switch, and the
minute digits will start flashing.
5. Push the “SELECT” switch up or down to set the minutes.
6. Push the “MENU” switch to start the clock.
Fuel meter
The fuel meter indicates the amount of
fuel in the fuel tank. The display seg-
ments of the fuel meter disappear from
“F” (full) towards “E” (empty) as the fuel
level decreases. When the last seg-
ment starts flashing, approximately 4.0
L (1.06 US gal, 0.88 Imp.gal) of fuel re-
mains. Refuel as soon as possible.
TIPIf a problem is detected in the electrical
circuit, the fuel level segments will flash
repeatedly. If this occurs, have a
Yamaha dealer check the vehicle.Eco in dicator
This indicator comes on when the vehi-
cle is being operated in an environ-
mentally friendly, fuel-efficient manner.
The indicator goes off when the vehicle
is stopped.TIPConsider the following tips to reduce
fuel consumption:  Avoid high engine speeds during
acceleration. 
Travel at a constant speed.
 Select the transmission gear that
is appropriate for the vehicle
speed.
Transmission gear display
This display shows the selected gear.
The neutral position is indicated by “N”
and by the neutral indicator light.
1. Fuel meter
1
1. Eco indicator “ECO”
1
1. Neutral indicator light “ ”
2. Transmission gear display
1
2
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Instrument and control functions
3-24
3
If the traction control system is dis-
abled, both the “ ” indicator light and
the “ ” warning light will come on.
Should this occur, try resetting the sys-
tem as follows.
1. Stop the vehicle and turn the vehi- cle off.
2. Wait a few seconds and then turn the vehicle back on.
3. The “ ” indicator light should turn off and the system be en-
abled.
TIPIf the “ ” indicator light remains on af-
ter resetting, the vehicle may still be
ridden; however, have a Yamaha deal-
er check the vehicle as soon as possi-
ble.4. Have a Yamaha dealer check thevehicle and turn off the “ ”
warning light.
EAU13076
Fuel tank capTo open the fuel tank cap
Open the fuel tank cap lock cover, in-
sert the key into the lock, and then turn
it 1/4 turn clockwise. The lock will be
released and the fuel tank cap can be
opened.
To close the fuel tank cap
With the key still inserted in the lock,
push down the fuel tank cap. Turn the
key 1/4 turn counterclockwise, remove
it, and then close the lock cover.
1. Engine trouble warning light “ ”
2. TCS display
3. Traction control system indicator light “ ”
3
2
1
1. Fuel tank cap lock cover
2. Unlock.
1
2
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Operation and important ri din g points
5-1
5
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 coul d cause an acci dent
or injury.
EAUM3632
TIPThis model is equipped with:  a lean angle sensor. This sensor
stops the engine in case of a vehi-
cle turnover. If this happens, the
engine trouble warning light will
come on, but this is not a malfunc-
tion. Turn the vehicle power off
and then back on again to cancel
the warning light. Failing to do so
will prevent the engine from start-
ing even though the engine will
crank when pushing the start
switch.
 an engine auto-stop system. The
engine stops automatically if left
idling for 20 minutes. If the engine
stops, simply push the start
switch to restart the engine.
EAU84620
Startin g the en gineUnder normal conditions, shift the
transmission into neutral before start-
ing the engine. To start the engine with
the transmission in gear, the sidestand
must be up and the clutch lever pulled.
To start the engine1. Set the engine stop switch to “ ”.
2. Turn the main switch to “ ”.
3. Confirm the following lights per-
form a circuit check. Coolant temperature warning
light
 Oil level warning light
 Engine trouble warning light
 ABS warning light
 Traction control system indi-
cator light
 Cruise control indicator lights
 Shift indicator light
 Immobilizer system indicator
lightTIP The ABS warning light should go
off after reaching a speed of 10
km/h (6 mi/h) or higher.
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Operation and important rid ing points
5-2
5 
The neutral position indicator light
should be on when the transmis-
sion is in neutral.
NOTICE
ECA24110
If a warnin g or in dicator li ght does
not work as d escribed a bove, have a
Yamaha dealer check the vehicle.4. Push the start switch “ ”.
Release the start switch when the
engine starts, or after 5 seconds.
Wait 10 seconds before pressing
the switch again to allow battery
voltage to restore.NOTICE
ECA11043
For maximum en gine life, never ac-
celerate har d when the en gine is
col d!
EAU84370
Shiftin gShifting gears lets you control the
amount of engine power available for
starting off, accelerating, climbing hills,
etc.
The gear positions are shown in the il-
lustration.TIPTo shift the transmission into the
neutral position ( ), press the
shift pedal down repeatedly until it
reaches the end of its travel, and
then slightly raise it. 
This model is equipped with a
quick shift system. (See page
3-20.)
NOTICE
ECA23990
Even with the transmission in
the neutral position, do not
coast for lon g period s of time
with the eng ine off, and d o not
tow the motorcycle for lon g d is-
tances. The transmission is
properly lu bricated only when
the en gine is runnin g. Ina de-
quate lu brication may damag e
the transmission.
 Except when upshiftin g with the
quick shift system, always use
the clutch while chan gin g g ears
to avoi d d amag ing the en gine,
transmission, an d drive train,
which are not desi gne d to with-
stan d the shock of forced shift-
in g.
EAU85370
To start out an d accelerate
1. Pull the clutch lever to disengage the clutch.
1. Gear positions
2. Shift pedal
2
1
1
N 2 3 4
5
6
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Operation and important rid ing points
5-4
5
EAU16811
Tips for re ducin g fuel con-
sumptionFuel consumption depends largely on
your riding style. Consider the follow-
ing tips to reduce fuel consumption:
 Shift up swiftly, and avoid high en-
gine speeds during acceleration.
 Do not rev the engine while shift-
ing down, and avoid high engine
speeds with no load on the en-
gine.
 Turn the engine off instead of let-
ting it idle for an extended length
of time (e.g., in traffic jams, at traf-
fic lights or at railroad crossings).
EAU16842
Engine break-inThere is never a more important period
in the life of your engine than the period
between 0 and 1600 km (1000 mi). For
this reason, you should read the fol-
lowing material carefully.
Since the engine is brand new, do not
put an excessive load on it for the first
1600 km (1000 mi). The various parts in
the engine wear and polish themselves
to the correct operating clearances.
During this period, prolonged full-throt-
tle operation or any condition that
might result in engine overheating
must be avoided.
EAU17094
0–1000 km (0–600 mi)
Avoid prolonged operation above 5600
r/min. NOTICE: After 1000 km (600
mi) of operation, the en gine oil must
b e chan ged an d the oil filter car-
tri dg e or element replace d.
[ECA10303]
1000–1600 km (600–1000 mi)
Avoid prolonged operation above 6700
r/min. 1600 km (1000 mi) an
d b eyon d
The vehicle can now be operated nor-
mally.
NOTICE
ECA10311
 Keep the en gine spee d out of
the tachometer red zone.
 If any en gine trou ble shoul d oc-
cur during the en gine break-in
period , imme diately have a
Yamaha dealer check the vehi-
cle.
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Periodic maintenance an d a djustment
6-10
6
EAU19653
Checkin g the spark plug sThe spark plugs are important engine
components, which should be
checked periodically, preferably by a
Yamaha dealer. Since heat and depos- its will cause any spark plug to slowly
erode, they should be removed and
checked in accordance with the peri-
odic maintenance and lubrication
chart. In addition, the condition of the
spark plugs can reveal the condition of
the engine.
The porcelain insulator around the
center 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 engine should have the same
color. If any spark plug shows a dis-
tinctly different color, the engine could
be operating improperly. Do not at-
tempt to diagnose such problems
yourself. Instead, have a Yamaha deal-
er check the vehicle.
If a spark plug shows signs of elec-
trode 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
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
specified torque as soon as possible.NOTICE
ECA10841
Do not use any tools to remove or in-
stall the spark plu
g cap, otherwise
the i gnition coil coupler may get
d amag ed . The spark plu g cap may
b e difficult to remove because the
ru bber seal on the en d of the cap fits
ti g htly. To remove the spark plu g
cap, simply twist it back an d forth
while pullin g it out; to install it, twist
it back an d forth while pushin g it in.
Specified spark plu g:
NGK/MR9K9
1. Spark plug gap
Spark plu g g ap:
0.8–0.9 mm (0.031–0.035 in)
Ti ghtenin g torque:
Spark plug: 13 N·m (1.3 kgf·m, 9.6 lb·ft)
UB5BE0E0.book Page 10 Friday, September 7, 2018 10:34 AM

10-1
10
Index
AABS....................................................... 3-21
ABS warning light ................................... 3-6
Air filter element.................................... 6-15
Auxiliary DC jacks................................. 3-34BBattery .................................................. 6-30
Brake and clutch levers, checking and
lubricating........................................... 6-27
Brake and shift pedals, checking and lubricating........................................... 6-26
Brake fluid, changing............................ 6-23
Brake fluid level, checking.................... 6-22
Brake lever............................................ 3-21
Brake lever free play, checking ............ 6-20
Brake light switches ............................. 6-20
Brake pedal .......................................... 3-21CCables, checking and lubricating ......... 6-25
Canister ................................................ 6-11
Care ........................................................ 7-1
Catalytic converter ............................... 3-27
Centerstand and sidestand, checking
and lubricating ................................... 6-27
Clutch lever........................................... 3-19
Clutch lever free play, adjusting ........... 6-19
Coolant ................................................. 6-14
Coolant temperature warning light ......... 3-6
Cruise control indicator lights................. 3-6
Cruise control switches .......................... 3-4
Cruise control system............................. 3-8DData recording, vehicle........................... 9-2
Diagnostic connector ............................. 9-2 Dimmer/Pass switch .............................. 3-4
D-mode (drive mode) ........................... 3-19
Drive chain, cleaning and lubricating ... 6-25
Drive chain slack .................................. 6-23
Drive mode switch ................................. 3-5
EEngine break-in ...................................... 5-4
Engine idling speed, checking ............. 6-15
Engine oil.............................................. 6-11
Engine serial number ............................. 9-1
Engine trouble warning light .................. 3-6FFront and rear brake pads, checking ... 6-21
Front fork, adjusting ............................. 3-31
Front fork, checking ............................. 6-28
Fuel ...................................................... 3-25
Fuel consumption, tips for reducing ...... 5-4
Fuel tank cap........................................ 3-24
Fuel tank overflow hose ....................... 3-27
Fuses, replacing ................................... 6-31HHandlebar switches ............................... 3-3
Hazard switch ........................................ 3-4
Helmet holding cable ........................... 3-29
High beam indicator light ....................... 3-5
Horn switch ............................................ 3-4IIdentification numbers ........................... 9-1
Ignition circuit cut-off system .............. 3-35
Immobilizer system ................................ 3-1
Immobilizer system indicator light ......... 3-7
Indicator lights and warning lights ......... 3-5MMain switch/steering lock ...................... 3-2Maintenance and lubrication, periodic ... 6-5
Maintenance, emission control
system .................................................. 6-3
Matte color, caution................................ 7-1
MENU switch .......................................... 3-4
Model label ............................................. 9-1
Multi-function meter unit ...................... 3-11
NNeutral indicator light ............................. 3-5OOil level warning light .............................. 3-5PPanel, removing and installing ................ 6-9
Parking.................................................... 5-5
Part locations.......................................... 2-1QQuick shift system ................................ 3-20RRear view mirrors .................................. 3-31SSafety information................................... 1-1
Seats ..................................................... 3-28
SELECT switch ....................................... 3-5
Shift indicator light .................................. 3-7
Shifting.................................................... 5-2
Shift pedal............................................. 3-20
Shock absorber assembly, adjusting ... 3-32
Sidestand.............................................. 3-35
Spark plugs, checking .......................... 6-10
Specifications ......................................... 8-1
Starting the engine ................................. 5-1
Steering bearings, lubricating ............... 6-29
Steering, checking ................................ 6-29
Stop/Run/Start switch ............................ 3-4
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