2012 YAMAHA MT-03 battery

PERIODIC MAINTENANCE AND MINOR REPAIR
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EAU25921Troubleshooting charts
Starting problems or poor engine performance
WARNING0
Keep away open flames and do not smoke while checking or working on the fuel system.
1. Fuel
2. Compression
3. Ignition
4. Battery
Check the fuel level in the
fuel tank.
Operate the electric
starter.
Remove the spark plug
and check the electrodes.
Operate the electric
starter.
There is enough
fuel.
There is
compression.
Wet.
The engine turns
over quickly.
There is no fuel.
There is no
compression.
Dry.
The engine turns
over slowly.
Check the
compression.
Check the ignition.
Wipe off with a dry cloth and correct
the spark plug gap, or replace the
spark plug.
The battery is good.
Have a Yamaha dealer check the
vehicle.
Check the battery lead connections,
and charge the battery if necessary.
Open the throttle halfway and
operate the electric starter.
The engine does not start.
Check the battery.
The engine does
not start. Have a
Yamaha dealer
check the vehicle.
Supply fuel.
Have a Yamaha dealer check
the vehicle.
The engine does not start.
Check the compression.
6-40

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MOTORCYCLE CARE AND STORAGE
7-4
Long-term
Before storing your motorcycle for
several months:
1. Follow all the instructions in the
“Care” section of this chapter.
2. Fill up the fuel tank and add fuel
stabilizer (if available) to prevent
the fuel tank from rusting and the
fuel from deteriorating.
3. Perform the following steps to
protect the cylinder, piston rings,
etc. from corrosion.
a. Remove the spark plug cap
and spark plug.
b. Pour a teaspoonful of engine
oil into the spark plug bore.
c. Install the spark plug cap onto
the spark plug, and then place
the spark plug on the cylinder
head so that the electrodes
are grounded. (This will limit
sparking during the next
step.)
d. Turn the engine over several
times with the starter. (This
will coat the cylinder wall with
oil.)e. Remove the spark plug cap
from the spark plug, and then
install the spark plug and the
spark plug cap.
EWA10950
WARNING0
To prevent damage or injury from
sparking, make sure to ground the
spark plug electrodes while turning
the engine over.
4. Lubricate all control cables and
the pivoting points of all levers
and pedals as well as of the side-
stand/centerstand.
5. Check and, if necessary, correct
the tire air pressure, and then lift
the motorcycle so that both of its
wheels are off the ground. Alter-
natively, turn the wheels a little
every month in order to prevent
the tires from becoming degraded
in one spot.
6. Cover the muffler outlets with
plastic bags to prevent moisture
from entering them.
7. Remove the battery and fully
charge it. Store it in a cool, dry
place and charge it once a month.
Do not store the battery in an ex-
cessively cold or warm place [less
than 0 °C (30 °F) or more than 30
°C (90 °F)]. For more information
on storing the battery, see
page 6-31.
NOTE:
Make any necessary repairs before
storing the motorcycle.

SPECIFICATIONS
8-3
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Electrical system:
Ignition system:
Transistorized coil ignition (digital)
Charging system:
A.C. magneto
Battery:
Model:
GT9B-4
Voltage, capacity:
12 V, 8 Ah
Headlight:
Bulb type:
Halogen bulb
Bulb voltage, wattage x quantity:
Headlight:
12 V, 55 W/60 W x 1
Auxiliary light:
12 V, 3 W x 1
Tail/brake light:
12 V, 5 W/21 W x 1
Front turn signal light:
12 V, 10 W x 2
Rear turn signal light:
12 V, 10 W x 2
Meter lighting:
LED (backlight)
Neutral indicator light:
LED
Turn signal indicator light:
LED
High beam indicator light:
LED
Fuel level warning light:
LEDCoolant temperature warning light:
LED
Engine trouble warning light:
LED
Immobilizer system indicator light:
LED
Fuses:Main fuse:
30 A
Headlight fuse:
20 A
Signaling system fuse:
10 A
Ignition fuse:
10 A
Parking lighting 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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INDEX
A
Air filter element, cleaning the
check hoses ..................................6-13
Air filter element, replacing ..............6-13
Anti-theft alarm (optional)...................3-8
Auxiliary light bulb, replacing ...........6-34
B
Battery ..............................................6-29
To access the battery....................6-29
To charge the battery....................6-30
To store the battery.......................6-31
Brake and clutch levers,
checking and lubricating ...............6-26
Brake fluid ........................................6-22
Changing......................................6-22
Checking fluid level.......................6-21
Brake lever .......................................3-11
Brake pads, checking.......................6-20
Brake pedal......................................3-11
Lubricating....................................6-26
C
Cables, checking and lubricating .....6-25
Care and storage...............................7-1
Cast wheels......................................6-19
Catalytic converter...........................3-13
Checking and lubricating the
brake and clutch levers.................6-26
Checking and lubricating the
brake pedal...................................6-26Checking and lubricating the
cables ...........................................6-25
Checking and lubricating the
sidestand......................................6-27
Checking and lubricating the
throttle grip and cable ...................6-25
Checking the sidestand switch.........3-20
Clock mode ........................................3-7
Clutch lever ......................................3-10
Clutch lever free play, adjusting .......6-19
Consumer information........................9-1
Controls and instruments ...................2-3
Function ..........................................3-1
Coolant.............................................6-12
Coolant temperature warning light .....3-4
D
Description .........................................2-1
Controls and instrument .................2-3
Left view..........................................2-1
Right view .......................................2-2
Dimmer switch....................................3-9
Drive chain, cleaning and
lubricating.....................................6-24
Drive chain slack ..............................6-23
Adjusting.......................................6-23
Checking.......................................6-23
E
Engine break-in ..................................5-3
Engine idling speed, adjusting .........6-14
Engine oil and oil filter element ..........6-8Engine oil filter element....................6-10
Engine stop switch.............................3-9
Engine trouble warning light...............3-4
F
Front fork, checking.........................6-27
Front wheel......................................6-37
Installing........................................6-37
Removing......................................6-37
Fuel ..................................................3-12
Fuel consumption, tips for reducing ...5-3
Fuel level warning light......................3-4
Fuel tank breather/overflow hose.....3-13
Fuel tank cap ....................................3-11
Fuses, replacing...............................6-31
H
Handlebar switches............................3-9
Dimmer switch................................3-9
Engine stop switch..........................3-9
Hazard switch ...............................3-10
Horn switch .....................................3-9
Pass switch .....................................3-9
Start switch .....................................3-9
Turn signal switch...........................3-9
Headlight bulb, replacing .................6-33
High beam indicator light ...................3-4
Horn switch ........................................3-9
I
Identification numbers........................9-1
Idling speed, adjusting .....................6-14
Ignition circuit cut-off system............3-19