2012 YAMAHA MT-03 wheel

1
2
3
4
5
6
7
8
9
10
PERIODIC MAINTENANCE AND MINOR REPAIR
6-39
NOTE:
●If the drive chain is difficult to re-
move, remove the wheel axle first,
and then lift the wheel upward
enough to remove the drive chain
from the rear sprocket.
●The drive chain cannot be disas-
sembled.
7. While supporting the brake
caliper bracket, pull the wheel
axle out, and then remove the
wheel.
ECA11070CAUTION:
Do not apply the brake after the
wheel has been removed together
with the brake disc, otherwise the
brake pads will be forced shut.
EAU34430
To install the rear wheel
1. Install the wheel and the brake
caliper bracket by inserting the
wheel axle from the right-hand
side.
NOTE:
●Make sure that the retainer on the
swingarm is inserted into the slot
in the brake caliper bracket.
●Make sure that there is enough
space between the brake pads
before installing the wheel.
2. Install the drive chain onto the
rear sprocket.
3. Install the axle nut, and then low-
er the rear wheel so that it is on
the ground.
4. Adjust the drive chain slack. (See
page 6-23.)
5. Tighten the axle nut to the speci-
fied torque.
Tightening torque:
Axle nut:
150 Nm (15.0 m·kgf, 108 ft·lbf)
EAU25870
Troubleshooting
Although Yamaha motorcycles receive
a thorough inspection before shipment
from the factory, trouble may occur
during operation. Any problem in the
fuel, compression, or ignition systems,
for example, can cause poor starting
and loss of power.
The following troubleshooting charts
represent quick and easy procedures
for checking these vital systems your-
self. However, should your motorcycle
require any repair, take it to a Yamaha
dealer, whose skilled technicians have
the necessary tools, experience, and
know-how to service the motorcycle
properly.
Use only genuine Yamaha replace-
ment parts. Imitation parts may look
like Yamaha parts, but they are often
inferior, have a shorter service life and
can lead to expensive repair bills.

MOTORCYCLE CARE AND STORAGE
7-1
1
2
3
4
5
6
7
8
9
10
EAU26000
Care
While the open design of a motorcycle
reveals the attractiveness of the tech-
nology, it also makes it more vulnera-
ble. Rust and corrosion can develop
even if high-quality components are
used. A rusty exhaust pipe may go un-
noticed on a car, however, it detracts
from the overall appearance of a mo-
torcycle. Frequent and proper care
does not only comply with the terms of
the warranty, but it will also keep your
motorcycle looking good, extend its
life and optimize its performance.
Before cleaning
1. Cover the muffler outlet with a
plastic bag after the engine has
cooled down.
2. Make sure that all caps and cov-
ers as well as all electrical cou-
plers and connectors, including
the spark plug cap, are tightly in-
stalled.3. Remove extremely stubborn dirt,
like oil burnt onto the crankcase,
with a degreasing agent and a
brush, but never apply such prod-
ucts onto seals, gaskets, sprock-
ets, the drive chain and wheel
axles. Always rinse the dirt and
degreaser off with water.
Cleaning
ECA10770CAUTION:
●Avoid using strong acidic
wheel cleaners, especially on
spoked wheels. If such prod-
ucts are used on hard-to-re-
move dirt, do not leave the
cleaner on the affected area
any longer than instructed. Al-
so, thoroughly rinse the area
off with water, immediately dry
it, and then apply a corrosion
protection spray.
●Improper cleaning can damage
windshields, cowlings, panels
and other plastic parts. Use on-
ly a soft, clean cloth or sponge
with mild detergent and water
to clean plastic.
●Do not use any harsh chemical
products on plastic parts. Be
sure to avoid using cloths or
sponges which have been in
contact with strong or abrasive
cleaning products, solvent or
thinner, fuel (gasoline), rust re-
movers or inhibitors, brake flu-
id, antifreeze or electrolyte.
●Do not use high-pressure
washers or steam-jet cleaners
since they cause water seep-
age and deterioration in the fol-
lowing areas: seals (of wheel
and swingarm bearings, fork
and brakes), electric compo-
nents (couplers, connectors,
instruments, switches and
lights), breather hoses and
vents.

1
2
3
4
5
6
7
8
9
10
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
8-1
1
2
3
4
5
6
7
8
9
10
Engine oil:Type:
SAE10W30 or SAE10W40 or SAE15W40
or SAE20W40 or SAE20W50
Recommended engine oil grade:
API service SE, SF, SG type or higher
Engine oil quantity:
Without oil filter element replacement:
3.00 L (3.17 US qt) (2.64 Imp.qt)
With oil filter element replacement:
3.10 L (3.28 US qt) (2.72 Imp.qt)
Total amount (dry engine):
3.40 L (3.60 US qt) (2.99 Imp.qt)
Cooling system:Radiator capacity (including all routes):
1.0 L (1.05 US qt) (0.88 Imp.qt) (Radiator) +
0.25 L (0.26 US qt) (0.22 Imp.qt)
(Coolant reservoir)
Coolant reservoir capacity (up to the
maximum level mark):
0.25 L (0.26 US qt) (0.22 Imp.qt)
From low to full level:
0.15 L (0.16 US qt) (0.13 Imp.qt)
Air filter:Air filter element:
Oil-coated paper element
Fuel:Recommended fuel:
Premium unleaded gasoline only
Fuel tank capacity:
15.0 L (3.96 US gal) (3.30 Imp.gal)
Fuel reserve amount:
4.25 L (1.12 US gal) (0.93 Imp.gal)
Fuel injection:
Model:
297500-0390
Spark plug:Manufacturer/model:NGK/CR7EGap:
0.7-0.8 mm (0.028-0.032 in)
Clutch:Clutch type:
Wet, multiple-disc
Transmission:Primary reduction system:
Spur gear
Primary reduction ratio:
75/36 (2.083)
Secondary reduction system:
Chain drive
Secondary reduction ratio:
47/15 (3.133)
Transmission type:
Constant mesh 5-speed
Dimensions:Overall length:
2070 mm (81.49 in)
Overall width:
860 mm (33.85 in)
Overall height:
1115 mm (43.89 in)
Seat height:
805 mm (31.69 in)
Wheelbase:
1420 mm (55.90 in)
Ground clearance:
200 mm (7.87 in)
Minimum turning radius:
2225 mm (87.59 in)
Basic weight:With oil and fuel:
192 kg (423 lb)
195.2 kg (429 lb) (EU3 version)
Engine:Engine type:
Liquid cooled 4-stroke, SOHC
Cylinder arrangement:
Forward-inclined single cylinder
Displacement:
660.0 cm
3(40.27 cu.in)
Bore x stroke:
100.0 x 84.0 mm (3.94 x 3.31 in)
Compression ratio:
10.00 : 1
Starting system:
Electric starter
Lubrication system:
Dry sump
-20-10 0 1020304050°C
SAE 10W-30
SAE 10W-40
SAE 20W-40
SAE 20W-50
SAE 15W-40

1
2
3
4
5
6
7
8
9
10
SPECIFICATIONS
8-2
Operation:
Left foot operation
Gear ratio:
1
st:
30/12 (2.500)
2
nd:
26/16 (1.625)
3
rd:
23/20 (1.150)
4
th:
20/22 (0.909)
5
th:
20/26 (0.769)
Chassis:
Frame type:
Truss diamond
Caster angle:
26°
Trail:
97.0 mm (3.81 in)
Front tire:
Type:
Tubeless
Size:
120/70-ZR17M/C (58W),
120/70-R17M/C (58H)
Manufacturer/model:
DUNLOP D270F
PIRELLI SCORPION SYNC
Rear tire:
Type:
Tubeless
Size:
160/60-ZR17M/C (69W),
160/60-R17M/C (69H)Manufacturer/model:
DUNLOP D270
PIRELLI SCORPION SYNC
Load:
Maximum load:
186 kg (410 lb)
(Total weight of rider, passenger, cargo
and accessories)
Tire air pressure
(measured on cold tires):
Load:
Up to 90 kg (0-198 lb)
Front:
210 kPa (30 psi) (2.1 kgf/cm
3)
Rear:
230 kPa (33 psi) (2.3 kgf/cm
3)
Load:
90-186 kg (198-410 lb)
Front:
230 kPa (33 psi) (2.3 kgf/cm
3)
Rear:
250 kPa (36 psi) (2.5 kgf/cm
3)
High-speed riding:
Front:
210 kPa (30 psi) (2.1 kgf/cm
3)
Rear:
230 kPa (33 psi) (2.3 kgf/cm
3)
Front wheel:
Type:
Cast wheel
Rim size:
17M/C x MT3.50
Rear wheel:
Type:
Cast wheel
Rim size:
17M/C x MT5.00
Front brake:
Type:
Dual disc brake
Operation:
Right hand
Fluid:
DOT 4
Rear brake:
Type:
Single disc brake
Operation:
Right foot
Fluid:
DOT 4
Front suspension:
Type:
Telescopic fork
Spring/damper type:
Coil spring/oil damper
Wheel travel:
130 mm (5.12 in)
Rear suspension:
Type:
Swingarm
Spring/damper type:
Coil spring/gas-oil damper,
spring preload adjustable
Wheel travel:
120.0 mm (4.72 in)

1
2
3
4
5
6
7
8
9
10
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

INDEX
1
2
3
4
5
6
7
8
9
10
Checking operation procedure .....3-20
Immobilizer system............................3-1
Immobilizer system indicator light ......3-3
Indicator and warning lights ...............3-4
Coolant temperature warning
light .................................................3-4
Engine trouble warning light ...........3-4
Fuel level warning light...................3-4
High beam indicator light ................3-4
Immobilizer system indicator light...3-3
Neutral indicator light......................3-4
Turn signal indicator light................3-4
Indicator lights brightness
control mode...................................3-8
Instruments ........................................2-3
Instrument and control functions ........3-1
K
Key identification number...................9-1
Keys ...................................................3-1
L
License plate light bulb, replacing....6-36
Lubricating the brake and
clutch levers ..................................6-26
Lubricating the brake pedal..............6-26
Lubricating the cables......................6-25
Lubricating the drive chain ...............6-24
Lubricating the sidestand .................6-27
Lubricating the throttle grip and
cable .............................................6-25M
Main switch/steering lock ...................3-2
Model label.........................................9-2
Multi-function meter unit.....................3-5
Clock mode .....................................3-7
Indicator lights brightness
control mode...................................3-8
Odometer, tripmeter modes ............3-6
Self-diagnosis devices....................3-7
Tachometer .....................................3-6
N
Neutral indicator light.........................3-4
O
Odometer, tripmeter modes ...............3-6
Oil filter element...............................6-10
Operation and important riding
points ..............................................5-1
Owner’s tool kit..................................6-1
P
Panels, removing and installing .........6-6
Parking...............................................5-4
Pass switch ........................................3-9
Periodic maintenance and
lubrication chart ..............................6-2
Periodic maintenance and minor
repair...............................................6-1
Pre-operation check list .....................4-2
Pre-operation checks.........................4-1R
Rear wheel.......................................6-38
Installing........................................6-38
Removing......................................6-38
Record the identification numbers .....9-1
S
Safety information..............................1-1
Seats ................................................3-14
Self-diagnosis devices.......................3-7
Shift pedal ........................................3-10
Shifting ...............................................5-2
Shock absorber assembly
(adjusting).....................................3-16
Side suspension, lubricating............6-27
Sidestand.........................................3-18
Sidestand, checking and
lubricating.....................................6-27
Sidestand switch, checking ..............3-20
Spark plug, checking..........................6-6
Specifications .....................................8-1
Start switch.........................................3-9
Starting the engine.............................5-1
Steering, checking............................6-28
Steering lock ......................................3-2
Storage...............................................7-3
Supporting the motorcycle ...............6-36
T
Tachometer ........................................3-6
Tail/brake light bulb, replacing..........6-34
Throttle cable free play, adjusting ....6-15

1
2
3
4
5
6
7
8
9
10
INDEX
Throttle grip and cable, checking
and lubricating ..............................6-25
Tips for reducing fuel consumption ....5-3
Tires .................................................6-16
Air pressure ..................................6-16
Tire information .............................6-18
Tire inspection ..............................6-17
Tool kit ................................................6-1
Troubleshooting................................6-39
Troubleshooting charts .................6-40
Engine overheating .......................6-41
Turn signal indicator light ...................3-4
Turn signal light bulb, replacing .......6-35
Turn signal switch..............................3-9
V
Valve clearance ................................6-15
Vehicle identification number .............9-1
W
Warning lights ....................................3-4
Wheel bearings, checking ................6-29
Wheels, cast.....................................6-19