2020 YAMAHA NIKEN GT fuel cap

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
1-5
1operator and may limit control
ability, therefore, such accesso-
ries are not recommended.
 Use caution when adding electri-
cal accessories. If electrical ac-
cessories exceed the capacity of
the motorcycle’s electrical sys-
tem, an electric failure could re-
sult, which could cause a
dangerous loss of lights or engine
power.
Aftermarket Tires an d Rims
The tires and rims that came with your
motorcycle were designed to match
the performance capabilities and to
provide the best combination of han-
dling, braking, and comfort. Other
tires, rims, sizes, and combinations
may not be appropriate. See page 6-16
for tire specifications and for informa-
tion on servicing and replacing your
tires.
Transportin g the Motorcycle
Be sure to observe the following in-
structions before transporting the mo-
torcycle in another vehicle. 
Remove all loose items from the
motorcycle.
 Confirm there are no fuel or oil
leaks.
 Shift the transmission into gear.
 Secure with suitable straps that
are attached to solid parts of the
motorcycle, such as the frame or
upper front fork triple clamp. Do
not attach to turn signals, cowl-
ings and fairings, or any other
parts that can break. Choose the
location for the straps carefully so
the straps will not rub against
painted surfaces during transport.
 The suspension should be partial-
ly compressed by the tie-down
straps so that the motorcycle will
not bounce excessively during
transport.
UB5BE1E0.book Page 5 Wednesday, October 30, 2019 9:59 AM

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
3-24
3
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 the
vehicle and turn off the “ ”
warning light.
EAU13077
Fuel tank capTo open the fuel tank cap
Open the fuel tank cap lock cover, in-
sert the key, 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, push down
the fuel tank cap. Turn the key 1/4 turn
counterclockwise, remove it, and then
close the lock cover.
TIPThe fuel tank cap cannot be closed un-
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 close d after fillin g fuel.
Leakin g fuel is a fire hazar d.
1. Fuel tank cap lock cover
2. Unlock.
1
2
UB5BE1E0.book Page 24 Wednesday, October 30, 2019 9:59 AM

Instrument and control functions
3-25
3
EAU13222
FuelMake sure there is sufficient gasoline in
the tank.
WARNING
EWA10882
Gasoline an d g asoline vapors are
extremely flamma ble. To avoi d fires
an d explosions an d to re duce the
risk of injury when refuelin g, follow
these 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 spille d fuel with a clean,
d ry, soft cloth, since fuel may
d eteriorate painted surfaces or
plastic parts.
[ECA10072]
4. Be sure to securely close the fuel tank cap.
WARNING
EWA15152
Gasoline is poisonous an d can cau-
se injury or death. Han dle gasoline
with care. Never siphon gasoline by
mouth. If you shoul d swallow some
g asoline or inhale a lot of g asoline
vapor, or g et some gasoline in your
eyes, see your d octor immediately. If g
asoline spills on your skin, wash
with soap an d water. If gasoline
spills on your clothin g, chan ge your
clothes.
EAU86072
Your Yamaha engine was designed to
use unleaded gasoline with a research
octane number of 95 or higher. If en-
gine knocking or pinging occurs, use a
gasoline of a different brand or higher
octane rating.
1. Fuel tank filler tube
2. Maximum fuel level
1
2
Recommen ded fuel:
Unleaded gasoline (E10 acceptable)
Octane num ber (RON):
95
Fuel tank capacity: 18 L (4.8 US gal, 4.0 Imp.gal)
Fuel tank reserve:
4.0 L (1.06 US gal, 0.88 Imp.gal)
UB5BE1E0.book Page 25 Wednesday, October 30, 2019 9:59 AM

Periodic maintenance an d a djustment
6-11
6
EAU36112
CanisterThis model is equipped with a canister
to prevent the discharging of fuel vapor
into the atmosphere. Before operating
this vehicle, make sure to check the
following:
 Check each hose connection.
 Check each hose and canister for
cracks or damage. Replace if
damaged.
 Make sure that the canister
breather is not blocked, and if
necessary, clean it.
EAU1990G
Engine oilThe engine oil level should be checked
regularly. In addition, the oil must be
changed and the oil filter cartridge re-
placed at the intervals specified in the
periodic maintenance chart.NOTICE
ECA11621
 In or der to prevent clutch slip-
pa ge (since the en gine oil also
lu bricates the clutch), do not
mix any chemical additives. Do
not use oils with a diesel speci-
fication of “CD” or oils of a hi gh-
er quality than specifie d. In
a ddition, do not use oils la beled
“ENERGY CONSERVING II” or
hi gher.
 Make sure that no forei gn mate-
rial enters the crankcase.
To check the en gine oil level
1. After warming up the engine, wait a few minutes for the oil level to
settle for an accurate reading.
2. With the vehicle on a level surface, hold it upright for an accurate
reading.
3. Look at the check window located at the bottom-right side of the
crankcase.TIPThe engine oil should be between the
minimum and maximum level marks.
1. Canister
2. Canister breather
1
2
Recommen ded en gine oil:
See page 8-1.
Oil quantity: Oil change:2.40 L (2.54 US qt, 2.11 Imp.qt)
With oil filter removal: 2.70 L (2.85 US qt, 2.38 Imp.qt)
1. Engine oil filler cap
2. O-ring
3. Engine oil level check window
4. Maximum level mark
5. Minimum level mark
21
3
45
UB5BE1E0.book Page 11 Wednesday, October 30, 2019 9:59 AM

Motorcycle care and stora ge
7-4
7
1. Make all necessary repairs and
perform any outstanding mainte-
nance.
2. Follow all instructions in the Care section of this chapter.
3. Fill up the fuel tank, adding fuel stabilizer according to product in-
structions. Run the engine for 5
minutes to distribute treated fuel
through the fuel system.
4. For vehicles equipped with a fuel cock: Turn the fuel cock lever to
the off position.
5. For vehicles with a carburetor: To prevent fuel deposits from build-
ing up, drain the fuel in the carbu-
retor float chamber into a clean
container. Retighten the drain bolt
and pour the fuel back into the fuel
tank.
6. Use a quality engine fogging oil according to product instructions
to protect internal engine compo-
nents from corrosion. If engine
fogging oil is not available, per-
form the following steps for each
cylinder:a. Remove the spark plug cap and spark plug. b. Pour a teaspoonful of engine
oil into the spark plug bore.
c. Install the spark plug cap onto the spark plug, and then place
the spark plug on the cylinder
head so that the electrodes are
grounded. (This will limit spark-
ing during the next step.)
d. Turn the engine over several times with the starter. (This will
coat the cylinder wall with oil.)
WARNING! To prevent dam-
a g e or injury from sparkin g,
make sure to groun d the
spark plu g electro des while
turnin g the en gine over.
[EWA10952]
e. Remove the spark plug cap
from the spark plug, and then
install the spark plug and the
spark plug cap.
7. Lubricate all control cables, piv- ots, levers and pedals, as well as
the sidestand and centerstand (if
equipped).
8. Check and correct the tire air pressure, and then lift the vehicle
so that all wheels are off the
ground. Otherwise, turn the wheels a little once a month in or-
der to prevent the tires from be-
coming degraded in one spot.
9. Cover the muffler outlet with a plastic bag to prevent moisture
from entering it.
10. Remove the battery and fully char- ge it, or attach a maintenance
charger to keep the battery opti-
mally charged. NOTICE: Confirm
that the battery an d its char ger
are compati ble. Do not char ge a
VRLA battery with a convention-
al char ger.
[ECA26330]
TIP If the battery will be removed,
charge it once a month and store
it in a temperate location between
0-30 °C (32-90 °F).
 See page 6-30 for more informa-
tion on charging and storing the
battery.
UB5BE1E0.book Page 4 Wednesday, October 30, 2019 9:59 AM

Specifications
8-1
8
Dimensions:Overall length:2150 mm (84.6 in)
Overall width:
885 mm (34.8 in)
Overall height: 1425 mm (56.1 in)
Seat height: 835 mm (32.9 in)
Wheelbase:
1510 mm (59.4 in)
Ground clearance: 150 mm (5.91 in)
Minimum turning radius: 2.8 m (9.19 ft)Wei ght:Curb weight:
267 kg (589 lb)Engine:Combustion cycle:
4-stroke
Cooling system: Liquid cooled
Valve train: DOHC
Cylinder arrangement:
Inline
Number of cylinders: 3-cylinder
Displacement: 847 cm³
Bore × stroke:
78.0 × 59.1 mm (3.07 × 2.33 in) Starting system:
Electric starter
Engine oil:Recommended brand:
SAE viscosity grades:
10W-40
Recommended engine oil grade:
API service SG type or higher, JASO
standard MA
Engine oil quantity:
Oil change: 2.40 L (2.54 US qt, 2.11 Imp.qt)
With oil filter removal:
2.70 L (2.85 US qt, 2.38 Imp.qt)Coolant quantity:Coolant reservoir (up to the maximum level
mark):0.25 L (0.26 US qt, 0.22 Imp.qt)
Radiator (including all routes): 1.93 L (2.04 US qt, 1.70 Imp.qt)Fuel:Recommended fuel:Unleaded gasoline (E10 acceptable)
Octane number (RON): 95
Fuel tank capacity:
18 L (4.8 US gal, 4.0 Imp.gal)
Fuel reserve amount: 4.0 L (1.06 US gal, 0.88 Imp.gal)
Fuel injection:Throttle body:ID mark: BD51 00Drivetrain:Gear ratio:
1st:2.667 (40/15)
2nd:
2.000 (38/19)
3rd: 1.619 (34/21)
4th: 1.381 (29/21)
5th:
1.190 (25/21)
6th: 1.037 (28/27)Chassis:Track:
410 mm (16.1 in)Front tire:Type:Tubeless
Size:
120/70 R 15 M/C 56V
Manufacturer/model: BRIDGESTONE/A41F MRear tire:Type:
Tubeless
Size: 190/55 R 17 M/C 75V
UB5BE1E0.book Page 1 Wednesday, October 30, 2019 9:59 AM