2016 YAMAHA MT-03 check engine light

Operation and important ri din g points
5-2
5
NOTICE
ECA17682
If the ABS warnin g li ght does not
come on an d then go off as ex-
plaine d a bove, see pa ge 3-2 for the
warnin g li ght circuit check.2. Shift the transmission into the
neutral position. The neutral indi-
cator light should come on. If not,
ask a Yamaha dealer to check the
electrical circuit.
3. Start the engine by pushing the start switch.
If the engine fails to start, release
the start switch, wait a few sec-
onds, and then try again. Each
starting attempt should be as
short as possible to preserve the
battery. Do not crank the engine
more than 10 seconds on any one
attempt.NOTICE
ECA11043
For maximum en gine life, never ac-
celerate har d when the en gine is
col d!
EAU16673
Shiftin gShifting gears lets you control the
amount of engine power available for
starting off, accelerating, climbing hills,
etc.
The gear positions are shown in the il-
lustration.TIPTo shift the transmission into the neu-
tral position, press the shift pedal down
repeatedly until it reaches the end of its
travel, and then slightly raise it.
NOTICE
ECA10261
Even with the transmission in
the neutral position, d o not
coast for lon g period s of time
with the en gine off, an d d o not
tow the motorcycle for lon g d is-
tances. The transmission is
properly lu bricated only when
the en gine is runnin g. Ina de-
quate lu brication may d amage
the transmission.
 Always use the clutch while
chan gin g g ears to avoi d d am-
a g in g the en gine, transmission,
an d d rive train, which are not
d esi gne d to withstan d the
shock of force d shiftin g.
EAU16682
To start out an d accelerate
1. Pull the clutch lever to disengage the clutch.
2. Shift the transmission into first gear. The neutral indicator light
should go out.
3. Open the throttle gradually, and at the same time, release the clutch
lever slowly.
1. Shift pedal
2. Neutral position
1
1 2
2 3 4 5 6N
UB08E1E0.book Page 2 Friday, October 2, 2015 9:33 AM

Periodic maintenance an d a djustment
6-8
6
EAU19643
Checkin g the spark plug sThe spark plugs are important engine
components, which should be
checked periodically, preferably by a
Yamaha dealer. Since heat and depos- its will cause any spark plug to slowly
erode, they should be removed and
checked in accordance with the peri-
odic maintenance and lubrication
chart. In addition, the condition of the
spark plugs can reveal the condition of
the engine.
The porcelain insulator around the
center electrode of each spark plug
should be a medium-to-light tan (the
ideal color when the vehicle is ridden
normally), and all spark plugs installed
in the engine should have the same
color. If any spark plug shows a dis-
tinctly different color, the engine could
be operating improperly. Do not at-
tempt to diagnose such problems
yourself. Instead, have a Yamaha deal-
er check the vehicle.
If a spark plug shows signs of elec-
trode erosion and excessive carbon or
other deposits, it should be replaced. Before installing a spark plug, the
spark plug gap should be measured
with a wire thickness gauge and, if
necessary, adjusted to specification.
Clean the surface of the spark plug
gasket and its mating surface, and
then wipe off any grime from the spark
plug threads.
TIPIf a torque wrench is not available
when installing a spark plug, a good
estimate of the correct torque is 1/4–
1/2 turn past finger tight. However, the
spark plug should be tightened to the
specified torque as soon as possible.
Specified
spark plu g:
NGK/CR8E
1. Spark plug gap
Spark plu g g ap:
0.7–0.8 mm (0.028–0.031 in)
Ti ghtenin g torque:
Spark plug: 13 Nm (1.3 m·kgf, 9.4 ft·lbf)
UB08E1E0.book Page 8 Friday, October 2, 2015 9:33 AM

Periodic maintenance an d a djustment
6-9
6
EAUN1150
En gine oil an d oil filter car-
tri dgeThe engine oil level should be checked
before each ride. In addition, the oil
must be changed and the oil filter car-
tridge replaced at the intervals speci-
fied in the periodic maintenance and
lubrication chart.
To check the en gine oil level
1. Place the vehicle on a level sur- face and hold it in an upright posi-
tion. A slight tilt to the side can
result in a false reading.
2. Start the engine, warm it up for several minutes, and then turn it
off.
3. Wait a few minutes until the oil set- tles, and then check the oil level
through the engine oil level check
window located at the bottom-
right side of the crankcase.TIPThe engine oil should be between the
minimum and maximum level marks.
4. If the engine oil is below the mini-mum level mark, add sufficient oil
of the recommended type to raise
it to the correct level.
To chan ge the en gine oil (with or
without oil filter cartri dge replace-
ment) 1. Place the vehicle on a level sur- face.
2. Start the engine, warm it up for several minutes, and then turn it
off.
3. Place an oil pan under the engine to collect the used oil. 4. Remove the cowling by removing
the bolts.
5. Remove the engine oil filler cap, the engine oil drain bolt and its
gasket to drain the oil from the
crankcase.1. Engine oil filler cap
2. Engine oil level check window
3. Maximum level mark
4. Minimum level mark
3
4
1
2
1. Cowling
2. Bolt
1. Engine oil drain bolt
2. Gasket
1
2
12
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Periodic maintenance an d a djustment
6-11
6
10. Refill with the specified amount ofthe recommended engine oil, and
then install and tighten the oil filler
cap.
TIPBe sure to wipe off spilled oil on any
parts after the engine and exhaust sys-
tem have cooled down.NOTICE
ECA11621
In or der to prevent clutch slip-
pa ge (since the en gine oil also
lu bricates the clutch), do not
mix any chemical additives. Do
not use oils with a diesel speci-
fication of “CD” or oils of a hi gh-
er quality than specifie d. In
a ddition, do not use oils la beled
“ENERGY CONSERVING II” or
hi gher.
 Make sure that no forei gn mate-
rial enters the crankcase.11. Install the cowling by installing the bolts.
12. Start the engine, and then let it idle for several minutes while checking
it for oil leakage. If oil is leaking,
immediately turn the engine off
and check for the cause.
TIPAfter the engine is started, the engine
oil pressure warning light should go off.NOTICE
ECA20860
If the oil pressure warnin g lig ht flick-
ers or remains on even if the oil level
is correct, imme diately turn the en-
g ine off an d have a Yamaha d ealer
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.
1. Engine oil drain bolt
2. GasketTightenin g torque:
Engine oil drain bolt: 20 Nm (2.0 m·kgf, 14 ft·lbf)
Recommen ded en gine oil:
See page 8-1.
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)
2
1
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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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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
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