check engine YAMAHA NIKEN GT 2020 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).................... 3-18
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

Safety information
1-3
1Avoi
d Car bon Monoxi de Poisonin g
All engine exhaust contains carbon
monoxide, a deadly gas. Breathing
carbon monoxide can cause head-
aches, dizziness, drowsiness, nausea,
confusion, and eventually death.
Carbon Monoxide is a colorless, odor-
less, tasteless gas which may be pres-
ent even if you do not see or smell any
engine exhaust. Deadly levels of car-
bon monoxide can collect rapidly and
you can quickly be overcome and un-
able to save yourself. Also, deadly lev-
els of carbon monoxide can linger for
hours or days in enclosed or poorly
ventilated areas. If you experience any
symptoms of carbon monoxide poi-
soning, leave the area immediately, get
fresh air, and SEEK MEDICAL TREAT-
MENT.  Do not run engine indoors. Even if
you try to ventilate engine exhaust
with fans or open windows and
doors, carbon monoxide can rap-
idly reach dangerous levels.
 Do not run engine in poorly venti-
lated or partially enclosed areas
such as barns, garages, or car-
ports. 
Do not run engine outdoors where
engine exhaust can be drawn into
a building through openings such
as windows and doors.
Loa din g
Adding accessories or cargo to your
motorcycle can adversely affect stabil-
ity and handling if the weight distribu-
tion of the motorcycle is changed. To
avoid the possibility of an accident, use
extreme caution when adding cargo or
accessories to your motorcycle. Use
extra care when riding a motorcycle
that has added cargo or accessories.
Here, along with the information about
accessories below, are some general
guidelines to follow if loading cargo to
your motorcycle:
The total weight of the operator, pas-
senger, accessories and cargo must
not exceed the maximum load limit.
Operation of an overloa ded vehicle
coul d cause an acci dent. When loading within this weight limit,
keep the following in mind:
 Cargo and accessory weight
should be kept as low and close to
the motorcycle as possible. Se-
curely pack your heaviest items as
close to the center of the vehicle
as possible and make sure to dis-
tribute the weight as evenly as
possible on both sides of the mo-
torcycle to minimize imbalance or
instability.
 Shifting weights can create a sud-
den imbalance. Make sure that
accessories and cargo are se-
curely attached to the motorcycle
before riding. Check accessory
mounts and cargo restraints fre-
quently.
• Properly adjust the suspension for your load (suspension-ad-
justable models only), and
check the condition and pres-
sure of your tires.
• Never attach any large or heavy items to the handlebar, front
fork, or front fenders. These
items, including such cargo as
sleeping bags, duffel bags, or
Maximum loa d:
191 kg (421 lb)
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Description
2-2
2
EAU10421
Right view
2
1
1
4
3
6
7
8
9
5
1. Fuses (page 6-31)
2. Rear brake fluid reservoir (page 6-22)
3. Fuel tank cap (page 3-24)
4. Rebound damping force adjuster (page 3-30)
5. Compression damping force adjuster (page 3-30)
6. Coolant reservoir (page 6-14)
7. Engine oil level check window (page 6-11)
8. Engine oil filler cap (page 6-11) 9. Brake pedal (page 3-21)UB5BE1E0.book Page 2 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.
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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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Instrument and control functions
3-34
3
NOTICE
ECA26610
Do not draw power from a DC jack
with the en gine turne d off. Do not
connect any accessory which uses
more than 12 W (1.0 A). Otherwise
the battery may d ischarge or a fuse
may blow.To use an auxiliary DC jack
1. Start the engine. (See page 5-2.)
2. Turn the accessory off.
3. Open the auxiliary DC jack cap.
4. Insert the accessory power plug.
5. Turn the accessory on.TIP When inserting or removing the
accessory power plug, turn the
accessory off.
 When the auxiliary DC jack is not
being used, cover it with the cap.
WARNING
EWA14361
To prevent electrical shock or short-
circuitin g, make sure that the cap is
installe d when the auxiliary DC jack
is not bein g use d.
EAU15306
Si destan dThe 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 situa-
tions. (See the following section for an
explanation of the ignition circuit cut-
off system.)
WARNING
EWA10242
The vehicle must not b e ridden with
the si destan d d own, or if the si de-
stan d cannot b e properly move d up
(or does not stay up), otherwise the
si destan d coul d contact the groun d
an d d istract the operator, resultin g
in a possib le loss of control.
Yamaha’s ig nition circuit cut-off
system has been desi gne d to assist
the operator in fulfillin g the respon-
si bility of raisin g the si destan d b e-
fore startin g off. Therefore, check this system re
gularly an d have a
Yamaha dealer repair it if it does not
function properly.
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Instrument and control functions
3-35
3
EAU44905
Ig nition 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
sidestand be lowered while the trans-
mission is in gear.
Periodically check the system via the
following procedure.TIP This check is most reliable if per-
formed with a warmed-up engine.
 See pages 3-2 and 3-3 for switch
operation information.
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Instrument and control functions
3-36
3
With the engine turned off:
1.Place vehicle on centerstand.
2.Move the sidestand down.
3.Set engine stop switch to run position.
4.Turn main switch to on position.
5.Shift transmission into neutral.
6.Push the start switch.
Does the engine start?
With the engine still running:
7. Move the sidestand up.
8. Pull the clutch lever.
9. Shift transmission into gear.
10. Move the sidestand down.
Does the engine stall?
After the engine has stalled:
11. Move the sidestand up.
12. Pull the clutch lever.
13. Push the start switch.
Does the engine start?
The system is OK. The motorcycle can be ridden.
YES NO YES NO YES NO
The neutral switch may not be working.
The motorcycle should not be ridden until
checked by a Yamaha dealer.
The clutch switch may not be working.
The motorcycle should not be ridden until
checked by a Yamaha dealer.The sidestand switch may not be working.
The motorcycle should not be ridden until
checked by a Yamaha dealer.
WARNING
The vehicle must be placed on the
centerstand during this inspection.
If a malfunction is found, have the vehicle
inspected before riding.
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For your safety – pre-operation checks
4-1
4
EAU1559A
Inspect your vehicle each time you use it to make sure the vehicle is in safe operating condition. Always follow the inspection
and maintenance procedures and schedules described in the Owner’s Manual.
WARNING
EWA11152
Failure to inspect or maintain the vehicle properly increases the possibility of an acci dent or equipment damag e.
Do not operate the vehicle if you fin d any pro blem. If a pro blem cannot be corrected b y the proce dures provi ded in
this manual, have the vehicle inspecte d b y a Yamaha dealer.Before using this vehicle, check the following points:
ITEM CHECKS PAGE
Fuel • Check fuel level in fuel tank.
• Refuel if necessary.
• Check fuel line for leakage.
• Check fuel tank overflow hose for obstructions, cracks or damage, and check
hose connection. 3-25, 3-26
En gine oil • Check oil level in engine.
• If necessary, add recommended oil to specified level.
• Check vehicle for oil leakage. 6-11
Coolant • Check coolant level in reservoir.
• If necessary, add recommended coolant to specified level.
• Check cooling system for leakage. 6-14
Front brake • Check operation.
• If soft or spongy, have Yamaha dealer bleed hydraulic system.
• Check brake pads for wear.
• Replace if necessary.
• Check fluid level in reservoir.
• If necessary, add specified brake fluid to specified level.
• Check hydraulic system for leakage. 6-21, 6-22
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