2020 YAMAHA NIKEN GT check engine light

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).................... 3-18
Clutch lever .................................. 3-19
Shift pedal .................................... 3-19
Quick shift system ........................ 3-20
Brake lever.................................... 3-20
Brake pedal .................................. 3-21
ABS .............................................. 3-21
Traction control system ................ 3-22
Fuel tank cap ................................ 3-24
Fuel ............................................... 3-25
Fuel tank overflow hose ............... 3-26
Catalytic converter ....................... 3-27
Seats ............................................ 3-27
Helmet holding cable.................... 3-29
Storage compartment .................. 3-29
Rear view mirrors.......................... 3-30 Adjusting the front fork ................. 3-30
Adjusting the shock absorber
assembly.................................... 3-32
Auxiliary DC jacks ......................... 3-33
Sidestand ...................................... 3-34
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
Engine break-in ............................... 5-1
Starting the engine .......................... 5-2
Shifting ............................................ 5-3
Tips for reducing fuel consumption ................................ 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 ............. 6-27UB5BE1E0.book Page 1 Wednesday, October 30, 2019 9:59 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, 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 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.
EAU79311
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.
TIPWhen the vehicle is turned on, this light
should come on for a few seconds and
then go off. Otherwise, have a Yamaha
dealer check the vehicle.
EAU69895
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.
WARNING
EWA16043
If the ABS warnin g li ght does not
turn off after reachin g 10 km/h (6
mi/h), or if the warnin g li ght comes
on while ri din g:
 Use extra caution to avoi d pos-
si ble wheel lock durin g emer-
g ency brakin g.
 Have a Yamaha dealer check
the vehicle as soon as possi ble.
ABS
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Instrument and control functions
3-7
3
EAU86011
Traction control system in dicator
li g ht “TCS”
This indicator light will flash for a few
seconds when traction control has en-
gaged. The indicator light will come on
when the traction control system is
turned off. (See page 3-22.)TIPWhen the vehicle is turned on, this light
should come on for a few seconds and
then go off. Otherwise, have a Yamaha
dealer check vehicle.
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.
EAU73121
Immo bilizer system in dicator
li g ht “ ”
When the main switch is turned 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.TIPWhen the vehicle is turned on, this 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.Transpon der interference
If the immobilizer system indicator light
flashes in the pattern, slowly 5 times
then quickly 2 times, this could be
caused by transponder interference. If
this occurs, try the following. 1. Make sure there are no other im- mobilizer keys close to the main
switch.
2. Use the code re-registering key to start the engine. 3. If the engine starts, turn it off, and
try starting the engine with the
standard keys.
4. If one or both of the standard keys do not start the engine, take the
vehicle and all 3 keys to a Yamaha
dealer to have the standard keys
re-registered.
UB5BE1E0.book Page 7 Wednesday, October 30, 2019 9:59 AM

Instrument and control functions
3-13
3
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. Drive mo
de display
This display indicates which drive
mode has been selected: “1”, “2” or
“3”. For more details on the modes and
on how to select them, see page 3-18.
TCS display
1. Eco indicator “ECO”
1
1. Neutral indicator light “ ”
2. Transmission gear display
1
2
1. Drive mode display
1. TCS display
1
1
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Operation and important rid ing points
5-2
5
EAU86590
Startin g the eng ineThe ignition circuit cut-off system will
enable starting when:
 the transmission is in the neutral
position or
 the transmission is in gear, the
sidestand is up, and the clutch le-
ver is pulled.
To start the engine1. Turn the main switch on and set the engine stop switch to the run
position.
2. Confirm the indicator and warning light(s) come on for a few sec-
onds, and the go off. (See page
3-5.)TIPDo not start the engine if the en-
gine trouble warning light or the oil
level warning light remains on.
 The ABS warning light should
come on and stay on until the ve-
hicle reaches a speed of 10 km/h
(6 mi/h).
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.3. Shift the transmission into the
neutral position.
4. Start the engine by pushing the start switch.
5. 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!
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.
UB5BE1E0.book Page 2 Wednesday, October 30, 2019 9:59 AM

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)
UB5BE1E0.book Page 10 Wednesday, October 30, 2019 9:59 AM

10-1
10
Index
AABS....................................................... 3-21
ABS warning light ................................... 3-6
Air filter element.................................... 6-15
Auxiliary DC jacks................................. 3-33BBattery .................................................. 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............................................ 3-20
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) ........................... 3-18
Drive chain, cleaning and lubricating ... 6-25
Drive chain slack .................................. 6-23
Drive mode switch ................................. 3-5
EEngine break-in ...................................... 5-1
Engine idling speed, checking ............. 6-15
Engine oil.............................................. 6-11
Engine overheating .............................. 6-36
Engine serial number ............................. 9-1
Engine trouble warning light .................. 3-6FFront and rear brake pads, checking ... 6-21
Front fork, adjusting ............................. 3-30
Front fork, checking ............................. 6-28
Fuel ...................................................... 3-25
Fuel consumption, tips for reducing ...... 5-4
Fuel tank cap........................................ 3-24
Fuel tank overflow hose ....................... 3-26
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 ......... 3-5
MMain switch/steering lock ....................... 3-2
Maintenance 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 ...................... 3-11NNeutral 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 .................................. 3-30SSafety information................................... 1-1
Seats ..................................................... 3-27
SELECT switch ....................................... 3-5
Shift indicator light .................................. 3-7
Shifting.................................................... 5-3
Shift pedal............................................. 3-19
Shock absorber assembly, adjusting ... 3-32
Sidestand.............................................. 3-34
Spark plugs, checking .......................... 6-10
Specifications ......................................... 8-1
Starting the engine ................................. 5-2
Steering bearings, lubricating ............... 6-29
UB5BE1E0.book Page 1 Wednesday, October 30, 2019 9:59 AM