2016 YAMAHA MT-03 coolant

Periodic maintenance an d a djustment
6-37
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.
UB08E1E0.book Page 37 Friday, October 2, 2015 9:33 AM

Specifications
8-1
8
Dimensions:Overall length:2090 mm (82.3 in)
Overall width:
745 mm (29.3 in)
Overall height: 1035 mm (40.7 in)
Seat height: 780 mm (30.7 in)
Wheelbase:
1380 mm (54.3 in)
Ground clearance: 160 mm (6.30 in)
Minimum turning radius: 2.7 m (8.86 ft)Wei ght:Curb weight:
168 kg (370 lb)Engine:Combustion cycle:
4-stroke
Cooling system: Liquid cooled
Valve train: DOHC
Cylinder arrangement:
Inline
Number of cylinders: 2-cylinder
Displacement: 321 cm3
Bore × stroke:
68.0 × 44.1 mm (2.68 × 1.74 in) Compression ratio:
11.2 : 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:
1.80 L (1.90 US qt, 1.58 Imp.qt)
With oil filter removal: 2.10 L (2.22 US qt, 1.85 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):
0.96 L (1.01 US qt, 0.84 Imp.qt)Air filter:Air filter element:Oil-coated paper elementFuel:Recommended fuel:Regular unleaded gasoline (Gasohol [E10]
acceptable)
Fuel tank capacity: 14 L (3.7 US gal, 3.1 Imp.gal) Fuel reserve amount:
3.0 L (0.79 US gal, 0.66 Imp.gal)
Fuel injection:Throttle body:
ID mark: 2MS2 00Spark plu g(s):Manufacturer/model:
NGK/CR8E
Spark plug gap: 0.7–0.8 mm (0.028–0.031 in)Clutch:Clutch type:Wet, multiple-discDrivetrain:Primary reduction ratio:
3.043 (70/23)
Final drive: Chain
Secondary reduction ratio: 3.071 (43/14)
Transmission type:
Constant mesh 6-speed
Gear ratio: 1st:
2.500 (35/14)
2nd: 1.824 (31/17)
3rd: 1.348 (31/23)
4th:
1.087 (25/23)
5th: 0.920 (23/25)
UB08E1E0.book Page 1 Friday, October 2, 2015 9:33 AM

10-1
10
Index
AABS....................................................... 3-14
ABS warning light ................................... 3-3
Air filter element and check hose,
replacing and cleaning ....................... 6-13
Auxiliary light ........................................ 6-31BBattery .................................................. 6-28
Brake and clutch levers,
checking and lubricating .................... 6-25
Brake and shift pedals, checking and lubricating .................... 6-24
Brake fluid, changing............................ 6-21
Brake fluid level, checking.................... 6-20
Brake lever............................................ 3-13
Brake lever free play, checking ............ 6-18
Brake light switches ............................. 6-19
Brake pedal .......................................... 3-13CCables, checking and lubricating ......... 6-24
Care ........................................................ 7-1
Catalytic converter ............................... 3-17
Clutch lever........................................... 3-12
Clutch lever free play, adjusting ........... 6-17
Coolant ................................................. 6-12DDimmer switch...................................... 3-12
Drive chain, cleaning and lubricating ... 6-23
Drive chain slack .................................. 6-21EEngine break-in ...................................... 5-4
Engine oil and oil filter cartridge ............. 6-9
Engine serial number .............................. 9-1
Engine stop switch ............................... 3-12 Engine trouble warning light .................. 3-3
FFront and rear brake pads, checking ... 6-19
Front fork, checking ............................. 6-26
Fuel ...................................................... 3-15
Fuel tank breather hose and
overflow hose..................................... 3-17
Fuel tank cap........................................ 3-15
Fuses, replacing ................................... 6-29HHandlebar switches ............................. 3-11
Headlight bulb, replacing ..................... 6-31
Helmet holders ..................................... 3-19
High beam indicator light ....................... 3-2
Horn switch .......................................... 3-12IIdentification numbers ........................... 9-1
Ignition circuit cut-off system .............. 3-22
Indicator lights and warning lights ......... 3-2LLicense plate light bulb, replacing ....... 6-33
Luggage strap holders ......................... 3-21MMain switch/steering lock ...................... 3-1
Maintenance and lubrication, periodic... 6-4
Maintenance, emission control system ................................................. 6-3
Matte color, caution ............................... 7-1
Model label............................................. 9-1
Multi-function meter unit ........................ 3-4NNeutral indicator light ............................. 3-2OOil pressure warning light ...................... 3-2
PParking.................................................... 5-4
Part locations.......................................... 2-1
Pass switch........................................... 3-12SSafety information................................... 1-1
Seats ..................................................... 3-18
Shifting.................................................... 5-2
Shift pedal............................................. 3-13
Shift timing indicator light ....................... 3-3
Shock absorber assembly, adjusting ... 3-20
Sidestand.............................................. 3-21
Sidestand, checking and lubricating .... 6-26
Spark plugs, checking ............................ 6-8
Specifications ......................................... 8-1
Starting the engine ................................. 5-1
Start switch ........................................... 3-12
Steering, checking ................................ 6-27
Storage ................................................... 7-4
Storage compartment........................... 3-20
Supporting the motorcycle ................... 6-34
Swingarm pivots, lubricating ................ 6-26TTail/brake light ...................................... 6-32
Throttle grip and cable, checking and lubricating .................... 6-24
Throttle grip free play, checking ........... 6-15
Tires ...................................................... 6-15
Tool kit .................................................... 6-2
Troubleshooting .................................... 6-34
Troubleshooting charts ......................... 6-36
Turn signal indicator light ....................... 3-2
Turn signal light bulb, replacing............ 6-32
Turn signal switch ................................. 3-12
UB08E1E0.book Page 1 Friday, October 2, 2015 9:33 AM