light YAMAHA MT-03 2012 Owner's Manual

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OPERATION AND IMPORTANT RIDING POINTS
ECA10260CAUTION:
●Even with the transmission in
the neutral position, do not
coast for long periods of time
with the engine off, and do not
tow the motorcycle for long
distances. The transmission is
properly lubricated only when
the engine is running. Inade-
quate lubrication may damage
the transmission.
●Always use the clutch while
changing gears to avoid dam-
aging the engine, transmission,
and drive train, which are not
designed to withstand the
shock of forced shifting.
EAU16810
Tips for reducing fuel
consumption
Fuel consumption depends largely on
your riding style. Consider the follow-
ing tips to reduce fuel consumption:
●Shift up swiftly, and avoid high en-
gine speeds during acceleration.
●Do not rev the engine while shift-
ing down, and avoid high engine
speeds with no load on the en-
gine.
●Turn the engine off instead of let-
ting it idle for an extended length
of time (e.g., in traffic jams, at traf-
fic lights or at railroad crossings).
EAU16841
Engine break-in
There is never a more important peri-
od in the life of your engine than the
period between 0 and 1600 km (1000
mi). For this reason, you should read
the following material carefully.
Since the engine is brand new, do not
put an excessive load on it for the first
1600 km (1000 mi). The various parts
in the engine wear and polish them-
selves to the correct operating clear-
ances. During this period, prolonged
full-throttle operation or any condition
that might result in engine overheating
must be avoided.
5-3

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PERIODIC MAINTENANCE AND MINOR REPAIR
6-56-5
NO. ITEM CHECK OR MAINTENANCE JOBODOMETER READING (x 1,000 km)
110203040
ANNUAL
CHECK
• Check the air cut-off valve, reed valve, and hose
for damage.
• Check fuel hoses for cracks or damage.
• Check the screw clamp for looseness.
• Check operation.
• Adjust headlight beam. Air induction system
Muffler and exhaust
pipe
Lights, signals and
switches 28
✻
29✻
30✻
EAU18670
NOTE:
●The air filter needs more frequent service if you are riding in unusually wet or dusty areas.
●Hydraulic brake service
●Regularly check and, if necessary, correct the brake fluid level.
●Every two years replace the internal components of the brake master cylinders and calipers, and change the brake
fluid.
●Replace the brake hoses every four years and if cracked or damaged.√√√√ √
√√√√√
√√√√√ √

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PERIODIC MAINTENANCE AND MINOR REPAIR
2. Remove the spark plug as shown,
with the spark plug wrench includ-
ed in the owner’s tool kit.
To check the spark plug
1. Check that the porcelain insulator
around the center electrode of the
spark plug is a medium-to-light
tan (the ideal color when the vehi-
cle is ridden normally).
NOTE:
If the spark plug shows a distinctly dif-
ferent color, the engine could be defec-
tive. Do not attempt to diagnose such
problems yourself. Instead, have a
Yamaha dealer check the vehicle.
2. Check the spark plug for elec-
trode erosion and excessive car-
bon or other deposits, and re-
place it if necessary.
6-7
Specified spark plug:
CR7E (NGK)
Spark plug gap:
0.7-0.8 mm (0.028-0.032 in)
Tightening torque:
Spark plug:
12.5 Nm (1.25 m·kgf, 9.0 ft·lbf)
To install the spark plug
1. Measure the spark plug gap with
a wire thickness gauge and, if
necessary, adjust the gap to
specification.
1. Spark plug gap

2.
plug gasket and its mating sur-
face, and then wipe of
from the spark plug threads.
3.
spark plug wrench, and then tight-
en it to the specified torque.
NOTE:
If 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.
4. Install the spark plug cap.

PERIODIC MAINTENANCE AND MINOR REPAIR
EAUB1350
Engine oil and oil filter
element
The engine oil level should be checked
before each ride. In addition, the oil must
be changed and the oil filter element re-
placed at the intervals specified in the pe-
riodic maintenance and lubrication chart.To check the engine oil level
1. Place the vehicle on a level surface
and hold it in an upright position.NOTE:
Make sure that the vehicle is posi-
tioned straight up when checking the
oil level. A slight tilt to the side can re-
sult in a false reading.
2. Start the engine, warm it up for
10-15 minutes, let it continue to
idle for 20-30 seconds, and then
turn it off.
3. Wait a few minutes until the oil
settles, remove the oil filler cap,
wipe the dipstick clean, insert it
back into the oil filler hole (without
screwing it in), and then remove it
again to check the oil level.
1. Engine oil filler cap
2. Maximum level mark
3. Minimum level mark
EWAB0010
WARNING0
The exhaust pipes are very hot dur-
ing and following operation. To pre-
vent burns when removing the oil
filler cap, use extra care not to
touch the exhaust pipes.
NOTE:
●The engine oil tank is located in
front of the frame.
●The engine oil should be between
the minimum and maximum level
marks.
6-8
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PERIODIC MAINTENANCE AND MINOR REPAIR
EAU20070
Coolant
The coolant level should be checked
before each ride. In addition, the
coolant must be changed at the inter-
vals specified in the periodic mainte-
nance and lubrication chart.
EAU20090
To check the coolant level
1. Place the vehicle on a level sur-
face and hold it in an upright posi-
tion.
NOTE:
●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.
NOTE:
The coolant should be between the
minimum and maximum level marks.
1. Coolant reservoir
2. Maximum level mark
3. Minimum level mark
4. Reservoir cap
3. If the coolant is at or below the
minimum level mark, open the
reservoir cap, add coolant to the
maximum level mark, and then
close the reservoir cap.
ECA10470CAUTION:
●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
coolant as soon as possible,
otherwise the engine may not
be sufficiently cooled and the
cooling system will not be pro-
tected against frost and corro-
sion.
●If water has been added to the
coolant, have a Yamaha dealer
check the antifreeze content of
the coolant as soon as possi-
ble, otherwise the effective-
ness of the coolant will be re-
duced.
6-12
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Coolant reservoir capacity:
0.25 L (0.26 US qt) (0.22 Imp.qt)

PERIODIC MAINTENANCE AND MINOR REPAIR
1. Parking lighting fuse
2. Signaling system fuse
3. Headlight fuse
4. Ignition fuse
5. Electronic fuel injection fuse
6. Radiator fan fuse
7. Backup fuse
8. Reserve fuses
The main fuse is located under the fu-
el tank. (See page 6-31.)
The fuse box which contains the fuses
for the individual circuits is located un-
der the rider seat. (See page 3-15.)
If a fuse is blown, replace it as follows.
1. Turn the key to “OFF” and turn off
the electrical circuit in question.
2. Remove the blown fuse, and then
install a new fuse of the specified
amperage.
ECA10640CAUTION:
Do not use a fuse of a higher am-
perage rating than recommended
to avoid causing extensive damage
to the electrical system and possi-
bly a fire.
3. Turn the key to “ON” and turn on
the electrical circuit in question to
check if the device operates.
4. If the fuse immediately blows
again, have a Yamaha dealer
check the electrical system.
6-32
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Specified fuses:
Main fuse:
30 A
Fuse box:
Parking lighting fuse:
10 A
Signaling system fuse:
10 A
Headlight fuse:
20 A
Ignition fuse:
10 A
Electronic fuel injection fuse:
10 A
Radiator fan fuse:
7.5 A
Fuel injection system fuse:
10 A
Backup fuse (for odometer,
clock and immobilizer):
10 A

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PERIODIC MAINTENANCE AND MINOR REPAIR
EAUB1360
Replacing the headlight bulb
1. Headlight coupler
2. Headlight bulb cover
1. Headlight bulb holder
2. Headlight bulb
This model is equipped with a quartz
bulb headlight. If the headlight bulb
burns out, replace it as follows.
1. Turn the handlebar to the left side
to access the headlight coupler.
2. Disconnect the headlight coupler,
and then remove the bulb cover.
3. Unhook the headlight bulb holder,
and then remove the defective
bulb.
EWA10790
WARNING0
Headlight bulbs get very hot. There-
fore, keep flammable products
away from a lit headlight bulb, and
do not touch the bulb until it has
cooled down.
4. Place a new headlight bulb into
position, and then secure it with
the bulb holder.
1. Do not touch this areaECA10650CAUTION:
Take care not to damage the fol-
lowing parts:
●Headlight bulb
•Do not touch the glass part
of the headlight bulb to keep
it free from oil, otherwise the
transparency of the glass,
the luminosity of the bulb,
and the bulb life will be ad-
versely affected. Thoroughly
clean off any dirt and finger-
prints on the headlight bulb
using a cloth moistened with
alcohol or thinner.
6-33

PERIODIC MAINTENANCE AND MINOR REPAIR
●Headlight lens
•Do not affix any type of tinted
film or stickers to the head-
light lens.
•Do not use a headlight bulb
of a wattage higher than
specified.
5. Install the headlight bulb cover,
and then connect the coupler.
6. Have a Yamaha dealer adjust the
headlight beam if necessary.
EAUB1380
Replacing an auxiliary
light bulb
1. Auxiliary light socket
2. Auxiliary light bulb
If the auxiliary light bulb burns out, re-
place it as follows.
1. Turn the handlebar to the right or
left side to access the auxiliary
light socket.
2. Remove the auxiliary light socket
(together with the bulb) by pulling it.
3. Remove the defective bulb by
pulling it out.
4. Insert a new bulb into the socket.
5. Install the auxiliary light socket
(together with the bulb) by push-
ing it in.
EAUB1370
Replacing the tail/brake
light bulb
1. Tail/brake light bulb cover
2. Cover bolts
1. Tail/brake light socket
2. Tail/brake light bulb
6-34
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PERIODIC MAINTENANCE AND MINOR REPAIR
1. Remove the tail/brake light bulb
cover by removing the bolts.
2. Remove the socket (together with
the bulb) by turning it counter-
clockwise.
3. Remove the defective bulb by
pushing it in and turning it coun-
terclockwise.
4. Insert a new bulb into the socket,
push it in, and then turn it clock-
wise until it stops.
5. Install the socket (together with
the bulb) by turning it clockwise.
6. Place the tail/brake light bulb
cover in its original position, insert
the bolts and then tighten them to
the specified torque.EAU24202
Replacing a turn signal
light bulb
1. Screw
2. Turn signal light lens
3. Turn signal light bulb
1. Remove the turn signal light lens
by removing the screw.
2. Remove the defective bulb by
pushing it in and turning it coun-
terclockwise.
3. Insert a new bulb into the socket,
push it in, and then turn it clock-
wise until it stops.
4. Install the lens by installing the
screw.
ECA11190CAUTION:
Do not overtighten the screw, oth-
erwise the lens may break.
6-35
Tightening torque:
Tail/brake light bulb cover bolt:
10 Nm (1.0 m·kgf, 7.2 ft·lbf)

PERIODIC MAINTENANCE AND MINOR REPAIR
EAUB1410
Replacing the license plate
light bulb
1. Reinforcement plate
2. Bulb socket
3. License plate light bulb
1. Remove the reinforcement plate
by removing the bolts and nuts.
2. Remove the license plate light
bulb socket by pulling it out.
NOTE:
When removing the license plate light
bulb socket, be careful not to pull too
hard.
EAU24350
Supporting the motorcycle
Since this model is not equipped with
a centerstand, follow these precau-
tions when removing the front and rear
wheel or performing other mainte-
nance requiring the motorcycle to
stand upright. Check that the motorcy-
cle is in a stable and level position be-
fore starting any maintenance. A
strong wooden box can be placed un-
der the engine for added stability.
To service the front wheel
1. Stabilize the rear of the motorcy-
cle by using a motorcycle stand
or, if an additional motorcycle
stand is not available, by placing
a jack under the frame in front of
the rear wheel.
2. Raise the front wheel off the
ground by using a motorcycle
stand.
6-36
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3. Remove the defective bulb by
pulling it out of the socket.
4. Insert a new bulb into the socket.
5. Install the bulb socket by pushing
it in.
6. Install the reinforcement plate in
the original position, and then
tighten bolts and nuts to the spec-
ified torque.
Tightening torque:
Reinforcement plate nut:
7 Nm (0.7 m·kgf, 5.1 ft·lbf)
Reinforcement plate bolt (centre):
10 Nm (1.0 m·kgf, 7.2 ft·lbf)
Reinforcement plate bolt (upper):
10 Nm (1.0 m·kgf, 7.2 ft·lbf)