
Periodic maintenance and adjustment
6-13
6
NOTICE
ECA20860
If the oil pressure warning light flick-
ers or remains on even if the oil level
is correct, immediately turn the en-
gine off and have a Yamaha dealer
check the vehicle.13. Turn the engine off, wait a few
minutes until the oil settles, and
then check the oil level and cor-
rect it if necessary.
EAUS1203
CoolantThe coolant level should be checked
regularly. In addition, the coolant must
be changed at the intervals specified in
the periodic maintenance chart.TIPIf genuine Yamaha coolant is not avail-
able, use an ethylene glycol antifreeze
containing corrosion inhibitors for alu-
minum engines and mix with distilled
water at a 1:1 ratio.
EAU20097
To check the coolant level
Since the coolant level varies with en-
gine temperature, check when the en-
gine is cold.
1. Park the vehicle on a level surface.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 radiator cap when the
engine is hot.
 [EWA15162]
Recommended coolant:
YAMALUBE coolant
Coolant quantity:
Coolant reservoir (max level mark):
0.25 L (0.26 US qt, 0.22 Imp.qt)
Radiator (including all routes):
1.60 L (1.69 US qt, 1.41 Imp.qt)
1. Coolant reservoir
2. Maximum level mark
3. Minimum level mark
123
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Periodic maintenance and adjustment
6-14
6 4. Add coolant to the maximum level
mark. NOTICE: If coolant is not
available, use distilled water or
soft tap water instead. Do not
use hard water or salt water
since it is harmful to the engine.
If water has been used instead
of coolant, replace it with cool-
ant as soon as possible, other-
wise the cooling system will not
be protected against frost and
corrosion. If water has been
added to the coolant, have a
Yamaha dealer check the anti-
freeze content of the coolant as
soon as possible, otherwise the
effectiveness of the coolant will
be reduced.
 [ECA10473]
5. Install the coolant reservoir cap.
EAU33032
Changing 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 radiator cap when the engine is
hot.
 [EWA10382]EAU60451
Replacing the air filter ele-
ment and cleaning the check 
hoseThe air filter element should be re-
placed at the intervals specified in the
periodic maintenance and lubrication
chart. Have a Yamaha dealer replace
the air filter element more frequently if
you are riding in unusually wet or dusty
areas. However, the air filter check
hose can be easily reached and should
be frequently checked and cleaned if
necessary.
To clean the air filter check hose
1. Remove the air filter check hose
under the air filter case.
1. Coolant reservoir cap
1
1. Air filter check hoseZAUM1348
1
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Periodic maintenance and adjustment
6-39
6Engine overheating
WARNING
EWA10401
Do not remove the radiator cap when the engine and radiator are hot. Scalding hot fluid and steam may be
blown out under pressure, which could cause serious injury. Be sure to wait until the engine has cooled.
After removing the radiator cap retaining bolt, place a thick rag, like a towel, over the radiator cap, and then
slowly rotate the cap counterclockwise to the detent to allow any residual pressure to escape. When the hiss-
ing sound has stopped, press down on the cap while turning it counterclockwise, and 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.
UBU3E1E0.book  Page 39  Monday, June 4, 2018  5:20 PM 

Specifications
8-1
8
Dimensions:Overall length:
2075 mm (81.7 in)
Overall width:
820 mm (32.3 in)
Overall height:
1130 mm (44.5 in)
Seat height:
835 mm (32.9 in)
Wheelbase:
1405 mm (55.3 in)
Ground clearance:
140 mm (5.51 in)
Minimum turning radius:
2.7 m (8.86 ft)Weight:Curb weight:
186 kg (410 lb)Engine:Combustion cycle:
4-stroke
Cooling system:
Liquid cooled
Valve train:
DOHC
Cylinder arrangement:
Inline
Number of cylinders:
2-cylinder
Displacement:
689 cm³
Bore × stroke:
80.0 × 68.6 mm (3.15 × 2.70 in)Compression ratio:
11.5 : 1
Starting system:
Electric starter
Lubrication system:
Wet sump
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:
2.30 L (2.43 US qt, 2.02 Imp.qt)
With oil filter removal:
2.60 L (2.75 US qt, 2.29 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):
1.60 L (1.69 US qt, 1.41 Imp.qt)Fuel:Recommended fuel:
Premium unleaded gasoline (Gasohol [E10] 
acceptable)
Fuel tank capacity:
14 L (3.7 US gal, 3.1 Imp.gal)
Fuel reserve amount:
2.7 L (0.71 US gal, 0.59 Imp.gal)
Spark plug(s):Manufacturer/model:
NGK/LMAR8A-9
Spark plug gap:
0.8–0.9 mm (0.031–0.035 in)Clutch:Clutch type:
Wet, multiple-discDrivetrain:Transmission type:
Constant mesh 6-speed
Gear ratio:
1st:
2.846 (37/13)
2nd:
2.125 (34/16)
3rd:
1.632 (31/19)
4th:
1.300 (26/20)
5th:
1.091 (24/22)
6th:
0.964 (27/28)Chassis:Frame type:
Diamond
Caster angle:
25.0 °
Trail:
90 mm (3.5 in)Front tire:Type:
Tubeless
UBU3E1E0.book  Page 1  Monday, June 4, 2018  5:20 PM 

10-1
10
Index
AABS....................................................... 3-14
ABS warning light ................................... 3-5
Air filter element and check hose, 
replacing and cleaning ....................... 6-14
Auxiliary DC connector ......................... 3-22
Auxiliary light bulb, replacing ............... 6-34BBattery .................................................. 6-29
Brake and clutch levers, checking and 
lubricating........................................... 6-26
Brake and shift pedals, checking and 
lubricating........................................... 6-25
Brake fluid, changing............................ 6-22
Brake fluid level, checking.................... 6-21
Brake lever............................................ 3-14
Brake lever free play, checking ............ 6-19
Brake light switches ............................. 6-20
Brake pedal .......................................... 3-14CCables, checking and lubricating ......... 6-25
Canister ................................................ 6-10
Care ........................................................ 7-1
Catalytic converter ............................... 3-18
Clutch lever........................................... 3-13
Clutch lever free play, adjusting ........... 6-18
Coolant ................................................. 6-13
Coolant temperature warning light ......... 3-4DData recording, vehicle........................... 9-2
Diagnostic connector ............................. 9-2
Dimmer switch...................................... 3-12
Drive chain, cleaning and lubricating ... 6-24
Drive chain slack .................................. 6-22
EEngine break-in ...................................... 5-4
Engine oil and oil filter cartridge........... 6-10
Engine serial number ............................. 9-1
Engine trouble warning light .................. 3-5FFront and rear brake pads, checking ... 6-20
Front fork, checking ............................. 6-28
Fuel ...................................................... 3-16
Fuel consumption, tips for reducing ...... 5-4
Fuel tank breather hose and overflow 
hose ................................................... 3-18
Fuel tank cap........................................ 3-15
Fuses, replacing ................................... 6-31HHandlebar switches ............................. 3-12
Hazard switch ...................................... 3-13
Headlight bulb, replacing ..................... 6-33
Helmet holding cable ........................... 3-19
High beam indicator light ....................... 3-4
Horn switch .......................................... 3-12IIdentification numbers ........................... 9-1
Ignition circuit cut-off system .............. 3-23
Immobilizer system ................................ 3-1
Immobilizer system indicator light ......... 3-5
Indicator lights and warning lights ......... 3-3LLicense plate light ................................ 6-36MMain switch/steering lock ...................... 3-2
Maintenance and lubrication, periodic... 6-5
Maintenance, emission control 
system ................................................. 6-3Matte color, caution................................ 7-1
Model label ............................................. 9-1
Multi-function meter unit ........................ 3-6
NNeutral indicator light ............................. 3-4OOil pressure warning light ....................... 3-4PParking.................................................... 5-5
Part locations.......................................... 2-1
Pass switch........................................... 3-12RRear suspension, lubricating ................ 6-27SSafety information................................... 1-1
Seat....................................................... 3-19
Shifting.................................................... 5-2
Shift pedal............................................. 3-13
Shock absorber assembly, adjusting ... 3-21
Sidestand.............................................. 3-22
Sidestand, checking and lubricating .... 6-27
Spark plugs, checking ............................ 6-9
Specifications ......................................... 8-1
Start/Engine stop switch ...................... 3-13
Starting the engine ................................. 5-1
Steering, checking ................................ 6-28
Storage ................................................... 7-3
Supporting the motorcycle ................... 6-36
Swingarm pivots, lubricating ................ 6-27TTail/brake light ...................................... 6-35
Throttle grip and cable, checking and 
lubricating ........................................... 6-25
Throttle grip free play, checking ........... 6-15
UBU3E1E0.book  Page 1  Monday, June 4, 2018  5:20 PM