2016 YAMAHA MT-03 coolant level

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
Main switch/steering lock............... 3-1
Indicator lights and warning lights............................................ 3-2
Multi-function meter unit ................ 3-4
Handlebar switches ...................... 3-11
Clutch lever .................................. 3-12
Shift pedal .................................... 3-13
Brake lever.................................... 3-13
Brake pedal .................................. 3-13
ABS .............................................. 3-14
Fuel tank cap ................................ 3-15
Fuel ............................................... 3-15
Fuel tank breather hose and overflow hose ............................ 3-17
Catalytic converter ....................... 3-17
Seats ............................................ 3-18
Helmet holders ............................. 3-19
Storage compartment .................. 3-20
Adjusting the shock absorber
assembly ................................... 3-20
Luggage strap holders ................. 3-21
Sidestand ..................................... 3-21
Ignition circuit cut-off system ....... 3-22 For your safety – pre-operation
checks
............................................... 4-1
Operation an d important ri din g
points ................................................. 5-1
Starting the engine .......................... 5-1
Shifting ............................................ 5-2
Engine break-in ............................... 5-4
Parking ............................................ 5-4
Perio dic maintenance an d
a d justment ........................................ 6-1
Owner’s tool kit ............................... 6-2
Periodic maintenance chart for the emission control system ........ 6-3
General maintenance and lubrication chart ........................... 6-4
Checking the spark plugs ............... 6-8
Engine oil and oil filter cartridge...... 6-9
Coolant.......................................... 6-12
Replacing the air filter element and cleaning the check hose..... 6-13
Checking the throttle grip
free play ..................................... 6-15
Valve clearance ............................. 6-15
Tires .............................................. 6-15
Cast wheels................................... 6-17
Adjusting the clutch lever free play ..................................... 6-17
Checking the brake lever free play ..................................... 6-18 Brake light switches ..................... 6-19
Checking the front and rear
brake pads ................................ 6-19
Checking the brake fluid level ...... 6-20
Changing the brake fluid .............. 6-21
Drive chain slack........................... 6-21
Cleaning and lubricating the drive chain ................................. 6-23
Checking and lubricating the cables ........................................ 6-24
Checking and lubricating the
throttle grip and cable ............... 6-24
Checking and lubricating the brake and shift pedals............... 6-24
Checking and lubricating the brake and clutch levers ............. 6-25
Checking and lubricating the
sidestand................................... 6-26
Lubricating the swingarm pivots......................................... 6-26
Checking the front fork ................. 6-26
Checking the steering................... 6-27
Checking the wheel bearings ....... 6-27
Battery .......................................... 6-28
Replacing the fuses ...................... 6-29
Replacing the headlight bulb ........ 6-31
Auxiliary light ................................ 6-31
Tail/brake light .............................. 6-32
Replacing a turn signal light bulb ........................................... 6-32UB08E1E0.book Page 1 Friday, October 2, 2015 9:33 AM

Instrument and control functions
3-6
3
TIPThis fuel meter is equipped with a self-
diagnosis system. If a problem is de-
tected in the electrical circuit, the fol-
lowing cycle is repeated until the
malfunction is corrected: fuel level seg-
ments flash eight times, then go off for
approximately three seconds. If this
occurs, have a Yamaha dealer check
the electrical circuit.Coolant temperature meter
The coolant temperature meter indi-
cates the temperature of the coolant.
When the key is turned to “ ”, the dis-
play segments of the digital coolant
temperature meter will sweep once across the temperature range and then
return to “C” in order to test the electri-
cal circuit.
If the last segment on the right flashes,
stop the vehicle, then stop the engine,
and let the engine cool. (See page
6-37.)
NOTICE
ECA10022
Do not continue to operate the en-
g
ine if it is overheatin g.TIPThe coolant temperature varies with
changes in the weather and engine
load.
Transmission gear display
This display shows the selected gear.
The neutral position is indicated by “ ”
and by the neutral indicator light.
Multi-function display
1. Coolant temperature meter
1
1. Neutral indicator light “ ”
2. Transmission gear display
1. Multi-function display
1
2
MPH
km/h
km
1
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For your safety – pre-operation checks
4-1
4
EAU15599
Inspect your vehicle each time you use it to make sure the vehicle is in safe operating condition. Always follow the inspection
and maintenance procedures and schedules described in the Owner’s Manual.
WARNING
EWA11152
Failure to inspect or maintain the vehicle properly increases the possibility of an acci dent or equipment damag e.
Do not operate the vehicle if you fin d any pro blem. If a pro blem cannot be corrected b y the proce dures provi ded in
this manual, have the vehicle inspecte d b y a Yamaha dealer.Before using this vehicle, check the following points:
ITEM CHECKS PAGE
Fuel • Check fuel level in fuel tank.
• Refuel if necessary.
• Check fuel line for leakage.
• Check fuel tank breather hose and overflow hose for obstructions, cracks or
damage, and check hose connections. 3-15, 3-17
En gine oil • Check oil level in engine.
• If necessary, add recommended oil to specified level.
• Check vehicle for oil leakage. 6-9
Coolant • Check coolant level in reservoir.
• If necessary, add recommended coolant to specified level.
• Check cooling system for leakage. 6-12
Front brake • Check operation.
• If soft or spongy, have Yamaha dealer bleed hydraulic system.
• Check brake pads for wear.
• Replace if necessary.
• Check fluid level in reservoir.
• If necessary, add specified brake fluid to specified level.
• Check hydraulic system for leakage. 6-19, 6-20
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Periodic maintenance an d a djustment
6-6
6
21 *Front fork • Check operation and for oil leak-
age. √√√√
22 *Shock a
bsor ber as-
sem bly • Check operation and shock ab-
sorber for oil leakage. √√√√
23 En gine oil • Change. (See pages 3-4 and 6-9.)
√When the oil change indicator flashes
• Check oil level and vehicle for oil leakage. Every 5000 km (3000 mi)
√
24 En
gine oil filter car-
tri dg e •Replace.
√√√
25 *Coolin g system • Check coolant level and vehicle
for coolant leakage. √√√√√
• Change coolant. Every 3 years
26 *Front an
d rear
b rake switches • Check operation.
√√√√√√
27 Movin
g parts an d
ca bles • Lubricate.
√√√√√
28 *Throttle g rip • Check operation.
• Check throttle grip free play, and
adjust if necessary.
• Lubricate cable and grip housing. √√√√√
29 *Li
ghts, si gnals an d
switches • Check operation.
• Adjust headlight beam.
√√√√√√
NO. ITEM CHECK OR MAINTENANCE JOB
ODOMETER READING
ANNUAL
CHECK
1000 km
(600 mi) 10000 km
(6000 mi) 20000 km
(12000 mi) 30000 km
(18000 mi) 4000
0 km
(24000 mi)
UB08E1E0.book Page 6 Friday, October 2, 2015 9:33 AM

Periodic maintenance an d a djustment
6-12
6
EAU20071
CoolantThe coolant level should be checked
before each ride. In addition, the cool-
ant must be changed at the intervals
specified in the periodic maintenance
and lubrication chart.
EAU38176
To check the coolant level
1. Place the vehicle on a level sur- face and hold it in an upright posi-
tion.TIPThe coolant level must be
checked on a cold engine since
the level varies with engine tem-
perature.
 Make sure that the vehicle is posi-
tioned straight up when checking
the coolant level. A slight tilt to the
side can result in a false reading.2. Check the coolant level in the
coolant reservoir.TIPThe coolant should be between the
minimum and maximum level marks.
3. If the coolant is at or below theminimum level mark, remove the
coolant reservoir cover by remov-
ing the bolts, remove the coolant
reservoir cap, and then add cool-
ant to the maximum level mark.
WARNING! Remove only the coolant reservoir cap. Never at-
tempt to remove the ra diator
cap when the en gine is hot.
[EWA15162]
NOTICE: If coolant is not
availa ble, use distille d 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 dd ed 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]
1. Maximum level mark
2. Minimum level mark
3. Coolant reservoir
1
2
3
1. Bolt
2. Coolant reservoir cover
2
1
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Periodic maintenance an d a djustment
6-13
6
4. Install the reservoir cap, and theninstall the coolant reservoir cover
by installing the bolts.
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] EAUN1172
Replacin
g the air filter ele-
ment an d cleanin g the check
hoseThe air filter element should be re-
placed at the intervals specified in the
periodic maintenance and lubrication
chart. Replace the air filter element
more frequently if you are riding in un-
usually wet or dusty areas. In addition,
the air filter check hose must be fre-
quently checked and cleaned if neces-
sary.
To replace the air filter element
1. Remove the rider seat. (See page 3-18.)
2. Remove the left side panel bolts. 3. Remove the left side panel by re-
moving the lower projection on the
panel from the slot, and then re-
moving the upper projection as
shown.
1. Coolant reservoir capCoolant reservoir capacity (up to
the maximum level mark):0.25 L (0.26 US qt, 0.22 Imp.qt)
1
1. Left side panel
2. Bolt
1. Projection
1
2
1
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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