2020 YAMAHA MT-03 engine

Table of contents
Safety information............................1-1
Description........................................2-1
Left view ..........................................2-1
Right view........................................2-2
Controls and instruments ................2-3
Instrument and control functions....3-1
Main switch/steering lock ...............3-1
Indicator lights and warning
lights ............................................3-2
Multi-function meter unit .................3-4
Handlebar switches.......................3-10
Clutch lever ...................................3-11
Shift pedal .....................................3-12
Brake lever ....................................3-12
Brake pedal ...................................3-13
ABS ...............................................3-13
Fuel tank cap.................................3-14
Fuel................................................3-15
Fuel tank overflow hose ................3-16
Catalytic converter ........................3-17
Seats .............................................3-17
Helmet holders ..............................3-19
Storage compartment ...................3-20
Adjusting the shock absorber
assembly....................................3-20
Luggage strap holders ..................3-21
Sidestand ......................................3-22
Ignition circuit cut-off system........3-22
For your safety – pre-operation
checks...............................................4-1
Operation and important riding
points.................................................5-1
Engine break-in ...............................5-1
Starting the engine ..........................5-2
Shifting ............................................5-3
Tips for reducing fuel
consumption ................................5-4
Parking ............................................5-5
Periodic maintenance and
adjustment........................................6-1
Tool kit.............................................6-2Periodic maintenance charts .......... 6-3
Periodic maintenance chart for
the emission control system........ 6-3
General maintenance and
lubrication chart........................... 6-4
Checking the spark plugs ............... 6-7
Canister........................................... 6-8
Engine oil and oil filter cartridge ..... 6-8
Why Yamalube .............................. 6-11
Coolant ......................................... 6-12
Replacing the air filter element
and cleaning the check hose..... 6-13
Checking the throttle grip
free play ..................................... 6-15
Valve clearance ............................. 6-15
Tires .............................................. 6-16
Cast wheels .................................. 6-18
Adjusting the clutch lever
free play ..................................... 6-18
Checking the brake lever
free play ..................................... 6-19
Brake light switches ...................... 6-20
Checking the front and rear
brake pads................................. 6-20
Checking the brake fluid level....... 6-21
Changing the brake fluid............... 6-22
Drive chain slack ........................... 6-23
Cleaning and lubricating the
drive chain ................................. 6-24
Checking and lubricating the
cables ........................................ 6-25
Checking and lubricating the
throttle grip and cable ............... 6-25
Checking and lubricating the
brake and shift pedals ............... 6-26
Checking and lubricating the
brake and clutch levers ............. 6-26
Checking and lubricating the
sidestand ................................... 6-27
Lubricating the swingarm pivots... 6-27
Checking the front fork ................. 6-28
Checking the steering ................... 6-28
Checking the wheel bearings ....... 6-29
Battery .......................................... 6-29
Replacing the fuses ...................... 6-31
Vehicle lights ................................. 6-33
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Safety information
1-2
1Many accidents involve inexperi-
enced operators. In fact, many op-
erators who have been involved in
accidents do not even have a cur-
rent motorcycle license.
• Make sure that you are qualified
and that you only lend your mo-
torcycle to other qualified oper-
ators.
• Know your skills and limits.
Staying within your limits may
help you to avoid an accident.
• We recommend that you prac-
tice riding your motorcycle
where there is no traffic until you
have become thoroughly famil-
iar with the motorcycle and all of
its controls.
Many accidents have been
caused by error of the motorcycle
operator. A typical error made by
the operator is veering wide on a
turn due to excessive speed or un-
dercornering (insufficient lean an-
gle for the speed).
• Always obey the speed limit and
never travel faster than warrant-
ed by road and traffic condi-
tions.
• Always signal before turning or
changing lanes. Make sure that
other motorists can see you.
The posture of the operator and
passenger is important for proper
control.
• The operator should keep both
hands on the handlebar and
both feet on the operator foot-
rests during operation to main-
tain control of the motorcycle.• The passenger should always
hold onto the operator, the seat
strap or grab bar, if equipped,
with both hands and keep both
feet on the passenger footrests.
Never carry a passenger unless
he or she can firmly place both
feet on the passenger footrests.
Never ride under the influence of
alcohol or other drugs.
This motorcycle is designed for
on-road use only. It is not suitable
for off-road use.
Protective Apparel
The majority of fatalities from motorcy-
cle accidents are the result of head in-
juries. The use of a safety helmet is the
single most critical factor in the pre-
vention or reduction of head injuries.
Always wear an approved helmet.
Wear a face shield or goggles.
Wind in your unprotected eyes
could contribute to an impairment
of vision that could delay seeing a
hazard.
The use of a jacket, heavy boots,
trousers, gloves, etc., is effective
in preventing or reducing abra-
sions or lacerations.
Never wear loose-fitting clothes,
otherwise they could catch on the
control levers, footrests, or wheels
and cause injury or an accident.
Always wear protective clothing
that covers your legs, ankles, and
feet. The engine or exhaust sys-
tem become very hot during or af-
ter operation and can cause
burns.
A passenger should also observe
the above precautions.
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Safety information
1-3
1 Avoid Carbon Monoxide Poisoning
All engine exhaust contains carbon
monoxide, a deadly gas. Breathing
carbon monoxide can cause head-
aches, dizziness, drowsiness, nausea,
confusion, and eventually death.
Carbon Monoxide is a colorless, odor-
less, tasteless gas which may be
present even if you do not see or smell
any engine exhaust. Deadly levels of
carbon monoxide can collect rapidly
and you can quickly be overcome and
unable to save yourself. Also, deadly
levels of carbon monoxide can linger
for hours or days in enclosed or poorly
ventilated areas. If you experience any
symptoms of carbon monoxide poi-
soning, leave the area immediately, get
fresh air, and SEEK MEDICAL TREAT-
MENT.
Do not run engine indoors. Even if
you try to ventilate engine exhaust
with fans or open windows and
doors, carbon monoxide can rap-
idly reach dangerous levels.
Do not run engine in poorly venti-
lated or partially enclosed areas
such as barns, garages, or car-
ports.
Do not run engine outdoors where
engine exhaust can be drawn into
a building through openings such
as windows and doors.
Loading
Adding accessories or cargo to your
motorcycle can adversely affect stabil-
ity and handling if the weight distribu-
tion of the motorcycle is changed. To
avoid the possibility of an accident, use
extreme caution when adding cargo or
accessories to your motorcycle. Useextra care when riding a motorcycle
that has added cargo or accessories.
Here, along with the information about
accessories below, are some general
guidelines to follow if loading cargo to
your motorcycle:
The total weight of the operator, pas-
senger, accessories and cargo must
not exceed the maximum load limit.
Operation of an overloaded vehicle
could cause an accident.
When loading within this weight limit,
keep the following in mind:
Cargo and accessory weight
should be kept as low and close to
the motorcycle as possible. Se-
curely pack your heaviest items as
close to the center of the vehicle
as possible and make sure to dis-
tribute the weight as evenly as
possible on both sides of the mo-
torcycle to minimize imbalance or
instability.
Shifting weights can create a sud-
den imbalance. Make sure that
accessories and cargo are se-
curely attached to the motorcycle
before riding. Check accessory
mounts and cargo restraints fre-
quently.
• Properly adjust the suspension
for your load (suspension-ad-
justable models only), and
check the condition and pres-
sure of your tires.
• Never attach any large or heavy
items to the handlebar, front
fork, or front fender. These
items, including such cargo as
Maximum load:
160 kg (353 lb)
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Safety information
1-5
1 operator and may limit control
ability, therefore, such accesso-
ries are not recommended.
Use caution when adding electri-
cal accessories. If electrical ac-
cessories exceed the capacity of
the motorcycle’s electrical sys-
tem, an electric failure could re-
sult, which could cause a
dangerous loss of lights or engine
power.
Aftermarket Tires and Rims
The tires and rims that came with your
motorcycle were designed to match
the performance capabilities and to
provide the best combination of han-
dling, braking, and comfort. Other
tires, rims, sizes, and combinations
may not be appropriate. See page 6-16
for tire specifications and for informa-
tion on servicing and replacing your
tires.
Transporting the Motorcycle
Be sure to observe following instruc-
tions before transporting the motorcy-
cle in another vehicle.
Remove all loose items from the
motorcycle.
Check that the fuel cock (if
equipped) is in the off position and
that there are no fuel leaks.
Shift the transmission into gear
(for models with a manual trans-
mission).
Secure the motorcycle with tie-
downs or suitable straps that are
attached to solid parts of the mo-
torcycle, such as the frame or up-
per front fork triple clamp (and not,
for example, to rubber-mountedhandlebars or turn signals, or
parts that could break). Choose
the location for the straps carefully
so the straps will not rub against
painted surfaces during transport.
The suspension should be com-
pressed somewhat by the tie-
downs, if possible, so that the mo-
torcycle will not bounce exces-
sively during transport.
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Description
2-1
2
EAU63371
Left view
12345
9
10876
1. Coolant reservoir (page 6-12)
2. Main fuse (page 6-31)
3. Tool kit (page 6-2)
4. Passenger seat lock (page 3-17)
5. Storage compartment (page 3-20)
6. Shock absorber assembly spring preload adjusting ring (page 3-20)
7. Shift pedal (page 3-12)
8. Engine oil drain bolt (page 6-8)
9. Engine oil filter cartridge (page 6-8)
10.Canister (page 6-8)
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Description
2-2
2
EAU63391
Right view
12
10 9 8 7 6345
1. Fuse box (page 6-31)
2. Battery (page 6-29)
3. Fuel tank cap (page 3-14)
4. Auxiliary light
5. Headlight (page 6-33)
6. Engine oil filler cap (page 6-8)
7. Engine oil level check window (page 6-8)
8. Brake pedal (page 3-13)
9. Rear brake light switch (page 6-20)
10.Rear brake fluid reservoir (page 6-21)
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Instrument and control functions
3-1
3
EAU10462
Main switch/steering lock
The main switch/steering lock controls
the ignition and lighting systems, and is
used to lock the steering. The various
positions are described below.
EAU85040ON
All electrical circuits are supplied with
power and the vehicle lights are turned
on. The engine can be started. The key
cannot be removed.
TIP
To prevent battery discharge, do
not leave the key in the on position
without the engine running.
The headlight comes on automat-
ically when the engine is started.
EAU10662OFF
All electrical systems are off. The key
can be removed.
WARNING
EWA10062
Never turn the key to “OFF” or
“LOCK” while the vehicle is moving.
Otherwise the electrical systems will
be switched off, which may result in
loss of control or an accident.
EAU1068BLOCK
The steering is locked and all electrical
systems are off. The key can be re-
moved.
To lock the steering
1. Turn the handlebars all the way to
the left.
2. With the key in the “OFF” position,
push the key in and turn it to
“LOCK”.
3. Remove the key.
TIP
If the steering will not lock, try turning
the handlebars back to the right slight-
ly.
To unlock the steering
ON
OFF
LOCK
1. Push.
2. Turn.
1. Push.
2. Turn.
12
12
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Instrument and control functions
3-2
3From the “LOCK” position, push the
key in and turn it to “OFF”.
EAU4939H
Indicator lights and warning
lights
EAU11032Turn signal indicator lights “ ”
and“”
Each indicator light will flash when its
corresponding turn signal lights are
flashing.
EAU11061Neutral indicator light “ ”
This indicator light comes on when the
transmission is in the neutral position.
EAU11081High beam indicator light “ ”
This indicator light comes on when the
high beam of the headlight is switched
on.
EAU85091Oil pressure warning light “ ”
This warning light comes on when the
engine oil pressure is low.
1. Engine trouble warning light “ ”
2. Oil pressure warning light “ ”
3. Left turn signal indicator light “ ”
4. Neutral indicator light “ ”
5. Shift indicator light “ ”
6. Right turn signal indicator light “ ”
7. High beam indicator light “ ”
8. Anti-lock Brake System (ABS) warning
light “ ”
8
MPH
MPG mile
123 4 5 67
ABS
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