2012 YAMAHA MT-03 brake

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PERIODIC MAINTENANCE AND MINOR REPAIR
EAU23200
Checking and lubricating
the sidestand
The operation of the sidestand should
be checked before each ride, and the
sidestand pivot and metal-to-metal
contact surfaces should be lubricated
if necessary.
EWA10730
WARNING0
If the sidestand does not move up
and down smoothly, have a Yamaha
dealer check or repair it.
EAUB1240
Lubricating the side
suspension
The pivoting points of the side suspen-
sion must be lubricated at the intervals
specified in the periodic maintenance
and lubrication chart.
Recommended lubricant:
Lithium-soap-based grease
(all-purpose grease)
Recommended lubricant:
Swingarm pivots:
Bearing grease
Other pivoting points:
Lithium-soap-based grease
EAU23271
Checking the front fork
The condition and operation of the
front fork must be checked as follows
at the intervals specified in the period-
ic maintenance and lubrication chart.
To check the condition
EWA10750
WARNING0
Securely support the motorcycle so
that there is no danger of it falling
over.
Check the inner tubes for scratches,
damage and excessive oil leakage.
To check the operation
1. Place the motorcycle on a level
surface and hold it in an upright
position.
2. While applying the front brake,
push down hard on the handle-
bars several times to check if the
front fork compresses and re-
bounds smoothly.
6-27

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)

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PERIODIC MAINTENANCE AND MINOR REPAIR
6-37
To service the rear wheel
Raise the rear wheel off the ground by
using a motorcycle stand or, if a mo-
torcycle stand is not available, by plac-
ing a jack either under each side of the
frame in front of the rear wheel or un-
der each side of the swingarm.EAU24360
Front wheelEAU34390
To remove the front wheel
EWA10820
WARNING0
●It is advisable to have a Yama-
ha dealer service the wheel.
●Securely support the motorcy-
cle so that there is no danger of
it falling over.
1. Front wheel axle pinch bolt
2. Wheel axle bolt
3. Brake caliper bolts
4. Brake hose holder bolt
1. Lift the front wheel off the ground
according to the procedure on
page 6-36.
2. Loosen the front wheel axle pinch
bolt, then the wheel axle and the
brake caliper bolts.
3. Remove the brake hose holder on
each side by removing the bolts.
4. Remove the brake caliper on
each side by removing the bolts.
ECA11050CAUTION:
Do not apply the brake after the
brake calipers have been removed,
otherwise the brake pads will be
forced shut.
5. Pull the wheel axle out, and then
remove the wheel.
EAU24860
To install the front wheel
1. Lift the wheel up between the fork
legs.
2. Insert the wheel axle.
3. Lower the front wheel so that it is
on the ground.

PERIODIC MAINTENANCE AND MINOR REPAIR
6-38
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EAU25080
Rear wheelEAU25311
To remove the rear wheelEWA10820
WARNING0
●It is advisable to have a Yama-
ha dealer service the wheel.
●Securely support the motorcy-
cle so that there is no danger of
it falling over.
1. Wheel axle nut
2. Drive chain slack adjusting bolt
3. Locknut
4. Drive chain
1. Wheel axle
2. Brake caliper bracket
1. Loosen the axle nut.
2. Lift the rear wheel off the ground
according to the procedure on
page 6-36.
3. Remove the axle nut.
4. Loosen the locknut on each side
of the swingarm.
5. Turn the drive chain slack adjust-
ing bolts fully in direction (a) and
push the wheel forward.
6. Remove the drive chain from the
rear sprocket.
4. Install the brake calipers by in-
stalling the bolts.
NOTE:
Make sure that there is enough space
between the brake pads before in-
stalling the brake calipers onto the
brake discs.
5. Install the brake hose holders by
installing the bolts.
6. Tighten the wheel axle, the front
wheel axle pinch bolt and the
brake caliper bolts to the speci-
fied torques.
Tightening torques:
Wheel axle:
72 Nm (7.2 m·kgf, 52 ft·lbf)
Front wheel axle pinch bolt:
14 Nm (1.4 m·kgf, 10 ft·lbf)
Brake caliper bolt:
40 Nm (4.0 m·kgf, 29 ft·lbf)
7. Push down hard on the handlebar
several times to check for proper
fork operation.

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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
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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.

MOTORCYCLE CARE AND STORAGE
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EWA10930
WARNING0
●Make sure that there is no oil or
wax on the brakes or tires. If
necessary, clean the brake
discs and brake linings with a
regular brake disc cleaner or
acetone, and wash the tires
with warm water and a mild de-
tergent.
●Before operating the motorcy-
cle test its braking perfor-
mance and cornering behavior.
ECA10800CAUTION:
●Apply spray oil and wax spar-
ingly and make sure to wipe off
any excess
●Never apply oil or wax to any
rubber and plastic parts, but
treat them with a suitable care
product.
●Avoid using abrasive polishing
compounds as they will wear
away the paint.
NOTE:
Consult a Yamaha dealer for advice
on what products to use.
EAUM1900
Storage
Short-term
Always store your motorcycle in a cool,
dry place and, if necessary, protect it
against dust with a porous cover.
ECA10810CAUTION:
●Storing the motorcycle in a
poorly ventilated room or cov-
ering it with a tarp, while it is
still wet, will allow water and
humidity to seep in and cause
rust.
●To prevent corrosion, avoid
damp cellars, stables (because
of the presence of ammonia)
and areas where strong chemi-
cals are stored.