2012 YAMAHA MT-03 warning

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INSTRUMENT AND CONTROL FUNCTIONS
3-7
Clock mode
1. Clock
2. “SELECT” button
3. “RESET” button
Turn the key to “ON”.
T
o set the clock
1. Push the “SELECT” button for at
least two seconds.
2. When the hour digits start flash-
ing, push the “RESET” button to
set the hours.
3. Push the “SELECT” button, and
the minute digits will start flash-
ing.
4. Push the “RESET” button to set
the minutes.
5. Push the “SELECT” button, and
then release it to start the clock.
Self-diagnosis devices
1. Engine trouble warning light “U”
2. Immobilizer system indicator light “ ”
This model is equipped with a self-diag-
nosis device for various electrical cir-
cuits. If any of those circuits are defec-
tive, the engine trouble warning light
will start flashing. If this occurs, have a
Yamaha dealer check the vehicle.
This model is also equipped with a
self-diagnosis device for the immobi-
lizer system.
Turn the key to "ON". If any of the im-
mobilizer system circuits are defec-
tive, the immobilizer system indicator
light will flash, and it will indicate an er-
ror code.
If this occurs, have a Yamaha dealer
check the vehicle. However, if the indi-
cator light slowly flashes five times,
and then quickly flashes two times re-
peatedly, this error could be caused by
signal interference. If this occurs, try
the following.
1. Use the code re-registering key to
start the engine.
NOTE:
Make sure there are no other immobi-
lizer keys close to the main switch,
and do not keep more than one immo-
bilizer key on the same key ring! Im-
mobilizer system keys may cause sig-
nal interference, which may prevent
the engine from starting.
2. If the engine starts, turn it off and
try starting the engine with the
standard keys.
3. If one or both of the standard keys
do not start the engine, take the
vehicle, the code re-registering
key and both standard keys to a
Yamaha dealer and have the
standard keys re-registered.

INSTRUMENT AND CONTROL FUNCTIONS
3-12
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To close the fuel tank cap
1. Push the fuel tank cap into posi-
tion with the key inserted in the
lock.
2. Turn the key counterclockwise to
the original position, remove it,
and then close the lock cover.
NOTE:
The fuel tank cap cannot be closed
unless the key is in the lock. In addi-
tion, the key cannot be removed if the
cap is not properly closed and locked.
EWA11090
WARNING0
Make sure that the fuel tank cap is
properly closed before riding.
EAU13210
Fuel
1. Fuel tank filler tube
2. Fuel level
Make sure that there is sufficient fuel
in the tank. Fill the fuel tank to the bot-
tom of the filler tube as shown.
EWA10880
WARNING0
• Do not overfill the fuel tank,
otherwise it may overflow when
the fuel warms up and expands.
• Avoid spilling fuel on the hot
engine.
ECA10070CAUTION:
Immediately wipe off spilled fuel
with a clean, dry, soft cloth, since
fuel may deteriorate painted sur-
faces or plastic parts.
EAU13390
Recommended fuel:
PREMIUM UNLEADED
GASOLINE ONLY
Fuel tank capacity:
15.0 L (3.96 US gal) (3.29 Imp.gal)
Fuel reserve amount (when the fuel
level warning light comes on):
4.25 L (1.12 US gal) (0.93 Imp.gal)

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INSTRUMENT AND CONTROL FUNCTIONS
3-13
EAUB1300
Fuel tank breather/overflow
hose
1. Fuel tank breather/overflow hose
2. Clamp
Before operating the motorcycle:
●Check the fuel tank breather/
overflow hose connection.
●Check the fuel tank breather/
overflow hose for cracks or dam-
age, and replace it if damaged.
●Make sure that the end of the fuel
tank breather/overflow hose is not
blocked, and clean it if necessary.
●Make sure that the end of the fuel
tank breather/overflow hose is
positioned inside of the clamp.
ECA11400CAUTION:
Use only unleaded gasoline. The
use of leaded gasoline will cause
severe damage to internal engine
parts, such as the valves and piston
rings, as well as to the exhaust sys-
tem.
Your Yamaha engine has been de-
signed to use premium unleaded
gasoline with a research octane num-
ber of 95 or higher. If knocking (or
pinging) occurs, use a gasoline of a
different brand. Use of unleaded fuel
will extend spark plug life and reduce
maintenance costs.
EAU13431
Catalytic converter
This model is equipped with a catalyt-
ic converter in the exhaust system.
EWA10860
WARNING0
The exhaust system is hot after op-
eration. Make sure that the exhaust
system has cooled down before do-
ing any maintenance work.

INSTRUMENT AND CONTROL FUNCTIONS
3-16
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10A. Distance (spring preload)
Adjust the spring preload as follows.
1. Loosen the locknut.
2. To increase the spring preload
and thereby harden the suspen-
sion, turn the adjusting nut in di-
rection (a). To decrease the
spring preload and thereby soften
the suspension, turn the adjusting
nut in direction (b).
NOTE:
●Use the special wrench included
in the owner's tool kit to make the
adjustment.
●The spring preload setting is de-
termined by measuring distance
A, shown in the illustration. The
longer distance A is, the lower the
spring preload; the shorter dis-
tance A is, the higher the spring
preload. With each complete turn
of the adjusting nut, distance A
changes by 1.5 mm (0.059 in).
●When measuring distance A, the
rear wheel must be raised off the
ground. (See page 6-36).
EAUB1330
Adjusting the shock
absorber assembly
1. Spring preload adjusting nut
2. Locknut
(a) Increasing the spring preload
(b) Decreasing the spring preload
This shock absorber assembly is
equipped with a spring preload adjust-
ing nut.
ECA10100
WARNING0
Never attempt to turn an adjusting
mechanism beyond the maximum
or minimum settings.

EAU15301
Sidestand
1. Sidestand
The sidestand is located on the left
side of the frame. Raise the sidestand
or lower it with your foot while holding
the motorcycle upright.
NOTE:
The built-in sidestand switch is part of
the ignition circuit cut-off system,
which cuts the ignition in certain situa-
tions. (See further down for an expla-
nation of the ignition circuit cut-off sys-
tem.)
INSTRUMENT AND CONTROL FUNCTIONS
3-18
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3. Tighten the locknut to the speci-
fied torque.
ECA11240CAUTION:
Always tighten the locknut against
the adjusting nut, and then tighten
the locknut to the specified torque.
EWA10220
WARNING0
This shock absorber contains high-
ly pressurized nitrogen gas. For
proper handling, read and under-
stand the following information be-
fore handling the shock absorber.
The manufacturer cannot be held
responsible for property damage or
personal injury that may result from
improper handling.
●Do not tamper with or attempt
to open the gas cylinder.
●Do not subject the shock ab-
sorber to an open flame or oth-
er high heat sources, otherwise
it may explode due to exces-
sive gas pressure.
●Do not deform or damage the
gas cylinder in any way, as this
will result in poor damping per-
formance.
●Always have a Yamaha dealer
service the shock absorber.
Tightening torque:
Locknut:
45 Nm (4.5 m·kgf, 32.5 ft·lbf)

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INSTRUMENT AND CONTROL FUNCTIONS
EWA10240
WARNING0
The vehicle must not be ridden
with the sidestand down, or if the
sidestand cannot be properly
moved up (or does not stay up),
otherwise the sidestand could con-
tact the ground and distract the
operator, resulting in a possible
loss of control. Yamaha’s ignition
circuit cut-off system has been de-
signed to assist the operator in ful-
filling the responsibility of raising
the sidestand before starting off.
Therefore, check this system regu-
larly as described below and have
a Yamaha dealer repair it if it does
not function properly.
3-19
EAU15311
Ignition circuit cut-off
system
The ignition circuit cut-off system
(comprising the sidestand switch,
clutch switch and neutral switch) has
the following functions.
●It prevents starting when the
transmission is in gear and the
sidestand is up, but the clutch
lever is not pulled.
●It prevents starting when the
transmission is in gear and the
clutch lever is pulled, but the side-
stand is still down.
●It cuts the running engine when
the transmission is in gear and
the sidestand is moved down.
Periodically check the operation of the
ignition circuit cut-off system accord-
ing to the following procedure.
EWA10250
WARNING0
If a malfunction is noted, have a
Yamaha dealer check the system
before riding.

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PRE-OPERATION CHECKS
4-1
EAU15591
The condition of a vehicle is the owner’s responsibility. Vital components can start to deteriorate quickly and unexpected-
ly, even if the vehicle remains unused (for example, as a result of exposure to the elements). Any damage, fluid leakage
or loss of tire air pressure could have serious consequences. Therefore, it is very important, in addition to a thorough vi-
sual inspection, to check the following points before each ride.
NOTE:
Pre-operation checks should be made each time the vehicle is used. Such an inspection can be accomplished in a very
short time; and the added safety it assures is more than worth the time involved.
EWA11150
WARNING0
If any item in the Pre-operation check list is not working properly, have it inspected and repaired before operat-
ing the vehicle.

EAU15950
EWA10270
WARNING0
Become thoroughly familiar
with all operating controls and
their functions before riding.
Consult a Yamaha dealer re-
garding any control or function
that you do not thoroughly un-
derstand.
Never start the engine or oper-
ate it in a closed area for any
length of time. Exhaust fumes
are poisonous, and inhaling
them can cause loss of con-
sciousness and death within a
short time. Always make sure
that there is adequate ventila-
tion.
Before starting out, make sure
that the sidestand is up. If the
sidestand is not raised com-
pletely, it could contact the
ground and distract the opera-
tor, resulting in a possible loss
of control.
EAUB1340
Starting the engine
In order for the ignition circuit cut-off
system to enable starting, one of the
following conditions must be met:
The transmission is in the neutral
position.
The transmission is in gear with
the clutch lever pulled and the
sidestand up.
EWA10290
WARNING0
Before starting the engine,
check the function of the igni-
tion circuit cut-off system ac-
cording to the procedure de-
scribed on page 3-20.
Never ride with the sidestand
down.
1. Turn the key to “ON” and make
sure that the engine stop switch
is set to “ ”.
ECAB0040CAUTION:
The following warning lights and in-
dicator lights should come on for a
few seconds, then go off.
Neutral indicator light
Turn signal indicator light
High beam indicator light
Engine trouble warning light
Coolant temperature warning
light
Fuel level warning light
Immobilizer system indicator
light
If a warning or indicator light does
not go off, see page 3-3 for the cor-
responding warning and indicator
light circuit check.
2. Shift the transmission into the
neutral position.
OPERATION AND IMPORTANT RIDING POINTS
5-1
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