2019 YAMAHA NIKEN GT Control

Periodic maintenance an d a djustment
6-16
6
EAU21386
Checkin g the throttle grip free
playMeasure the throttle grip free play as
shown.
Periodically check the throttle grip free
play and, if necessary, have a Yamaha
dealer adjust it.
EAU21403
Valve clearanceThe valves are an important engine
component, and since valve clearance
changes with use, they must be
checked and adjusted at the intervals
specified in the periodic maintenance
chart. Unadjusted valves can result in
improper air-fuel mixture, engine
noise, and eventually engine damage.
To prevent this from occurring, have
your Yamaha dealer check and adjust
the valve clearance at regular intervals.TIPThis service must be performed when
the engine is cold.
EAU64412
TiresTires are the only contact between the
vehicle and the road. Safety in all con-
ditions of riding depends on a relatively
small area of road contact. Therefore, it
is essential to maintain the tires in good
condition at all times and replace them
at the appropriate time with the speci-
fied tires.
Tire air pressure
The tire air pressure should be
checked and, if necessary, adjusted
before each ride.
WARNING
EWA10504
Operation of this vehicle with im-
proper tire pressure may cause se-
vere injury or d eath from loss of
control.  The tire air pressure must be
checked and a djuste d on col d
tires (i.e., when the temperature
of the tires equals the am bient
temperature).
 The tire air pressure must be
a d juste d in accor dance with the
ri din g spee d an d with the total
1. Throttle grip free playThrottle grip free play:
3.0–5.0 mm (0.12–0.20 in)
1
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Periodic maintenance and adjustment
6-17
6weight of rider, passenger, car-
go, and accessories approved
for this model.
WARNING
EWA10512
Never overload your vehicle. Opera-
tion of an overloaded vehicle could
cause an accident.
Tire inspection
The tires must be checked before each
ride. If the center tread depth reaches
the specified limit, if the tire has a nail
or glass fragments in it, or if the side-
wall is cracked, have a Yamaha dealer
replace the tire immediately.TIPThe tire tread depth limits may differ
from country to country. Always com-
ply with the local regulations.
WARNING
EWA10472

Have a Yamaha dealer replace
excessively worn tires. Besides
being illegal, operating the vehi-
cle with excessively worn tires
decreases riding stability and
can lead to loss of control.
 The replacement of all wheel
and brake-related parts, includ-
ing the tires, should be left to a
Yamaha dealer, who has the
necessary professional knowl-
edge and experience to do so.
 Ride at moderate speeds after
changing a tire since the tire
surface must first be “broken
in” for it to develop its optimal
characteristics.
Cold tire air pressure:
1 person:Front:225 kPa (2.25 kgf/cm², 33 psi)
Rear: 290 kPa (2.90 kgf/cm², 42 psi)
2 persons:
Front:225 kPa (2.25 kgf/cm², 33 psi)
Rear:
290 kPa (2.90 kgf/cm², 42 psi)
Maximum load: Vehicle:
191 kg (421 lb)
The vehicle’s maximum load is the
combined weight of the rider, pas-
senger, cargo, and any accessories.
1. Tire sidewall
2. Tire tread depthMinimum tire tread depth (front and
rear): 1.6 mm (0.06 in)
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Periodic maintenance an d a djustment
6-20
6
EAU37914
Checkin g the brake lever free
playThere should be no free play at the
brake lever end. If there is free play,
have a Yamaha dealer inspect the
brake system.
WARNING
EWA14212
A soft or spon gy feelin g in the brake
lever can in dicate the presence of
air in the hy draulic system. If there is
air in the hy draulic system, have a
Yamaha dealer blee d the system be-
fore operatin g the vehicle. Air in the
hy draulic system will diminish the b
rakin g performance, which may re-
sult in loss of control an d an acci-
d ent.
EAU36505
Brake li ght switchesThe brake light should come on just
before braking takes effect. The brake
light is activated by switches connect-
ed to the brake lever and brake pedal.
Since the brake light switches are
components of the anti-lock brake sys-
tem, they should only be serviced by a
Yamaha dealer.
1. No brake lever free play
1
UB5BE0E0.book Page 20 Friday, September 7, 2018 10:34 AM

Periodic maintenance an d a djustment
6-25
6
EAU23026
Cleanin g an d lu bricatin g the
d rive chainThe drive chain must be cleaned and
lubricated at the intervals specified in
the periodic maintenance and lubrica-
tion chart, otherwise it will quickly wear
out, especially when riding in dusty or
wet areas. Service the drive chain as
follows.NOTICE
ECA10584
The drive chain must b e lubricated
after washin g the motorcycle, ri din g
in the rain or ri din g in wet areas.1. Clean the drive chain with kero-
sene and a small soft brush.
NOTICE: To prevent d amaging
the O-rin gs, do not clean the
d rive chain with steam cleaners,
hi gh-pressure washers or inap-
propriate solvents.
[ECA11122]
2. Wipe the drive chain dry.
3. Thoroughly lubricate the drive chain with a special O-ring chain
lubricant. NOTICE: Do not use
en gine oil or any other lu bri-
cants for the drive chain, as they may contain su
bstances that
coul d damag e the O-rin gs.
[ECA11112] EAU23098
Checkin
g an d lu bricatin g the
cab lesThe operation of all control cables and
the condition of the cables should be
checked before each ride, and the ca-
bles and cable ends should be lubri-
cated if necessary. If a cable is
damaged or does not move smoothly,
have a Yamaha dealer check or re-
place it. WARNING! Dama ge to the
outer housin g of cab les may result
in internal rustin g an d cause inter-
ference with cab le movement. Re-
place damag ed cab les as soon as
possi ble to prevent unsafe con di-
tions.
[EWA10712]
Recommen ded lu bricant:
Yamaha cable lubricant or other
suitable cable lubricant
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Periodic maintenance an d a djustment
6-27
6
EAU23144
Checkin g an d lu bricatin g the
b rake an d clutch leversThe operation of the brake and clutch
levers should be checked before each
ride, and the lever pivots should be lu-
bricated if necessary.
Brake lever
Clutch lever
EAU23215
Checkin g an d lu bricatin g the
centerstan d an d si destan dThe operation of the centerstand and
sidestand should be checked before
each ride, and the pivots and metal-to-
metal contact surfaces should be lubri-
cated if necessary.
WARNING
EWA10742
If the centerstan d or si destan d d oes
not move up an d d own smoothly,
have a Yamaha dealer check or re-
pair it. Otherwise, the centerstan d or
si destan d coul d contact the groun d
an d d istract the operator, resultin g
in a possi ble loss of control.
Recommen ded lu bricants:
Brake lever:
Silicone grease
Clutch lever:
Lithium-soap-based grease
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Periodic maintenance an d a djustment
6-32
6
TIPTo access the ABS motor fuse, remove
the starter relay cover by pulling it up-
ward.
To access fuse box 2, fuse box 3, the
brake light fuse, and the cruise control
fuse, remove panel A. (See page 6-9.)
If a fuse is blown, replace it as follows.1. Turn the main switch off and turn off the electrical circuit in ques-
tion.
2. Remove the blown fuse, and then install a new fuse of the specified
amperage. WARNING! Do not
use a fuse of a hi gher ampera ge
ratin g than recommen ded to
1. Fuel injection system fuse
2. ABS solenoid fuse
3. Electronic throttle valve fuse
4. Backup fuse (for clock and immobilizer sys-
tem)
5. Heater fuse
6. Spare fuse
1234
65
1. Starter relay cover
2. ABS motor spare fuse
3. ABS motor fuse
1. Fuse box 2
2. Fuse box 3
3. Cruise control fuse
4. Brake light fuse
2 3
1
2
3
41
1. Signaling system fuse
2. ABS control unit fuse
3. Accessory fuse
4. Ignition fuse
5. Hazard fuse
6. Terminal fuse 1 (for auxiliary DC jack)
7. Terminal fuse 2 (for auxiliary DC jack)
8. Headlight fuse
9. Right radiator fan motor fuse
10.Left radiator fan motor fuse
11.Spare fuse
11 1
2
3
11
10 9876 5 4
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Periodic maintenance an d a djustment
6-33
6 avoi
d causin g extensive d am-
a g e to the electrical system an d
possi bly a fire.
[EWA15132]
3. Turn the main switch on and turn
on the electrical circuit in question
to check if the device operates.
4. If the fuse immediately blows again, have a Yamaha dealer
check the electrical system.
EAU72980
Vehicle lig htsThis model is equipped with full-LED
lighting. There are no user replaceable
bulbs.
If a light does not come on, check the
fuses and then have a Yamaha dealer
check the vehicle.NOTICE
ECA16581
Do not affix any type of tinte d film or
stickers to the hea dlig ht lens.
Specifie d fuses:
Main fuse: 50.0 A
ABS motor fuse:
30.0 A
Cruise control fuse: 1.0 A
Brake light fuse: 1.0 A
Specifie d fuses (fuse box 1):
Fuel injection system fuse: 25.0 A
ABS solenoid fuse: 20.0 A
Electronic throttle valve fuse:
7.5 A
Backup fuse: 7.5 A
Heater fuse: 10.0 A
Specifie d fuses (fuse box 2):
Signaling system fuse:
7.5 A
ABS control unit fuse:
5.0 A
Accessory fuse: 5.0 A
Ignition fuse: 15.0 A
Specifie d fuses (fuse box 3):
Hazard fuse: 7.5 A
Te r m i n a l f u s e 1 : 2.0 A
Te r m i n a l f u s e 2 :
2.0 A
Radiator fan motor fuse: 10.0 A × 2
Headlight fuse: 10.0 A
1. Auxiliary light
2. Headlight (low beam)
3. Headlight (high beam)
1
2
3
1
2
3
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Motorcycle care and stora ge
7-3
7 will
become slippery, which
coul d cause loss of control.
Thorou ghly clean the surfaces
of these parts before operatin g
the vehicle.
[EWA20650]
5. Treat rubber, vinyl, and unpainted plastic parts with a suitable care
product.
6. Touch up minor paint damage caused by stones, etc.
7. Wax all painted surfaces using a non-abrasive wax or use a detail
spray for motorcycles.
8. When finished cleaning, start the engine and let it idle for several
minutes to help dry any remaining
moisture.
9. If the headlight lens has fogged up, start the engine and turn on
the headlight to help remove the
moisture.
10. Let the vehicle dry completely be- fore storing or covering it.NOTICE
ECA26320
Do not apply wax to ru bber or
unpainte d plastic parts. 
Do not use a brasive polishin g
compoun ds as they will wear
away the paint.
 Apply sprays an d wax sparin gly.
Wipe off excess afterwar ds.
WARNING
EWA20660
Contaminants left on the b rakes or
tires can cause loss of control.  Make sure there is no lu bricant
or wax on the brakes or tires.
 If necessary, wash the tires with
warm water an d a mil d d eter-
g ent.
 If necessary, clean the brake
d iscs an d pa ds with brake
cleaner or acetone.
 Before ri din g at hi gher spee ds,
test the vehicle’s b raking per-
formance an d cornerin g b ehav-
ior.
EAU83472
Stora geAlways store the vehicle in a cool, dry
place. If necessary, protect it against
dust with a porous cover. Be sure the
engine and the exhaust system are
cool before covering the vehicle. If the
vehicle often sits for weeks at a time
between uses, the use of a quality fuel
stabilizer is recommended after each
fill-up.NOTICE
ECA21170
 Storin g the vehicle in a poorly
ventilate d room or coverin g it
with a tarp, while it is still wet,
will allow water an d humi dity to
seep in an d cause rust.
 To prevent corrosion, avoi d
d amp cellars, sta bles (b ecause
of the presence of ammonia)
an d areas where stron g chemi-
cals are store d.Lon g term stora ge
Before storing the vehicle long term (60
days or more):
UB5BE0E0.book Page 3 Friday, September 7, 2018 10:34 AM