2018 YAMAHA NIKEN coolant level

Periodic maintenance an d a djustment
6-14
6 2. With the vehicle in an upright posi-
tion, look at the coolant level in the
reservoir.
3. If the coolant is at or below the minimum level mark, remove the
coolant reservoir cap. WARNING!
Remove only the coolant reser-
voir cap. Never attempt to re-
move the ra diator cap when the
en gine is hot.
[EWA15162]
4. Add coolant to the maximum level
mark. NOTICE: If coolant is not
availa ble, use d istilled water or
soft tap water instea d. Do not
use har d water or salt water
since it is harmful to the en gine.
If water has been used instead
of coolant, replace it with cool-
ant as soon as possi ble, other-
wise the coolin g system will not
b e protecte d a gainst frost an d
corrosion. If water has been
a dde d to the coolant, have a
Yamaha dealer check the anti-
freeze content of the coolant as
soon as possi ble, otherwise the
effectiveness of the coolant will
b e re duce d.
[ECA10473]
5. Install the coolant reservoir cap.
EAU33032
Chan gin g the coolant
The coolant must be changed at the in-
tervals specified in the periodic main-
tenance and lubrication chart. Have a
Yamaha dealer change the coolant.
WARNING! Never attempt to remove the ra diator cap when the en gine is
hot.
[EWA10382]
1. Coolant reservoir
2. Maximum level mark
3. Minimum level mark
2
3
1
1. Coolant reservoir cap
1
UBD5E0E0.book Page 14 Wednesday, April 25, 2018 2:23 PM

Periodic maintenance an d a djustment
6-36
6 En
gine overheatin g
WARNING
EWAT1041
Do not remove the ra diator cap when the en gine an d ra diator are hot. Scal din g hot flui d an d steam may be
b lown out un der pressure, which coul d cause serious injury. Be sure to wait until the en gine has coole d.
 Place a thick ra g, like a towel, over the ra diator cap, an d then slowly rotate the cap counterclockwise to the
d etent to allow any resi dual pressure to escape. When the hissin g soun d has stoppe d, press d own on the cap
while turnin g it counterclockwise, an d then remove the cap.TIPIf coolant is not available, tap water can be temporarily used instead, provided that it is changed to the recommended cool-
ant as soon as possible.
Wait until the
engine has cooled.
Check the coolant level in the
reservoir and radiator.
The coolant level
is OK.The coolant level is low.
Check the cooling system
for leakage.
Have a Yamaha dealer checkand repair the cooling system.Add coolant. (See TIP.)
Start the engine. If the engine overheats again,
have a
Yamaha dealer check
and repair the cooling system.
There is
leakage.
There is
no leakage.
UBD5E0E0.book Page 36 Wednesday, April 25, 2018 2:23 PM

Specifications
8-1
8
Dimensions:Overall length:2150 mm (84.6 in)
Overall width:
885 mm (34.8 in)
Overall height: 1250 mm (49.2 in)
Seat height: 820 mm (32.3 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:
263 kg (580 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:
YAMALUBE
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:
Premium unleaded gasoline (Gasohol [E10]
acceptable)
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 00
Drivetrain: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
Manufacturer/model: BRIDGESTONE/A41R MLoa din g:Maximum load:
195 kg (430 lb)
UBD5E0E0.book Page 1 Wednesday, April 25, 2018 2:23 PM

10-1
10
Index
AABS....................................................... 3-20
ABS warning light ................................... 3-6
Air filter element.................................... 6-15
Auxiliary DC connector ......................... 3-34
Auxiliary DC jack .................................. 3-33BBattery .................................................. 6-29
Brake and clutch levers, checking and
lubricating........................................... 6-26
Brake and shift pedals, checking and lubricating........................................... 6-26
Brake fluid, changing............................ 6-23
Brake fluid level, checking.................... 6-21
Brake lever............................................ 3-20
Brake lever free play, checking ............ 6-19
Brake light switches ............................. 6-20
Brake pedal .......................................... 3-20CCables, checking and lubricating ......... 6-25
Canister ................................................ 6-11
Care ........................................................ 7-1
Catalytic converter ............................... 3-26
Clutch lever........................................... 3-18
Clutch lever free play, adjusting ........... 6-19
Coolant ................................................. 6-13
Coolant temperature warning light ......... 3-6
Cruise control indicator lights................. 3-5
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 ... 6-24
Drive chain slack .................................. 6-23
Drive mode switch ................................. 3-4
EEngine break-in ...................................... 5-3
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 ... 6-20
Front fork, adjusting ............................. 3-30
Front fork, checking ............................. 6-28
Fuel ...................................................... 3-24
Fuel consumption, tips for reducing ...... 5-3
Fuel tank cap........................................ 3-23
Fuel tank overflow hose ....................... 3-26
Fuses, replacing ................................... 6-31HHandlebar switches ............................... 3-3
Hazard switch ........................................ 3-4
Helmet holding cable ........................... 3-28
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 ...................... 3-2
Maintenance and lubrication, periodic... 6-5Maintenance, 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.................................................... 5-4
Part locations.......................................... 2-1QQuick shift system ................................ 3-19RRear view mirrors .................................. 3-30SSafety information................................... 1-1
Seats ..................................................... 3-27
SELECT switch ....................................... 3-4
Shift indicator light .................................. 3-7
Shifting.................................................... 5-2
Shift pedal............................................. 3-19
Shock absorber assembly, adjusting ... 3-31
Sidestand.............................................. 3-34
Sidestand, checking and lubricating .... 6-27
Spark plugs, checking .......................... 6-10
Specifications ......................................... 8-1
Stability bar ........................................... 6-33
Starting the engine ................................. 5-1
Steering bearings, lubricating ............... 6-29
Steering, checking ................................ 6-28
UBD5E0E0.book Page 1 Wednesday, April 25, 2018 2:23 PM