2018 YAMAHA MT-03 ignition system

Table of contents
Safety information ............................1-1
Description ........................................2-1
Left view ..........................................2-1
Right view........................................2-2
Controls and instruments ................2-3
Instrument an d 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.......................3-11
Clutch lever ...................................3-12
Shift pedal .....................................3-13
Brake lever ....................................3-13
Brake pedal ...................................3-14
ABS ...............................................3-14
Fuel tank cap.................................3-15
Fuel................................................3-16
Fuel tank overflow hose ................3-17
Catalytic converter ........................3-18
Seats .............................................3-18
Helmet holders ..............................3-20
Storage compartment ...................3-21
Adjusting the shock absorber assembly ....................3-21
Luggage strap holders ..................3-22
Sidestand ......................................3-23
Ignition circuit cut-off system........3-23
For your safety – pre-
operation checks ..............................4-1
Operation an d important
ri din g points ......................................5-1
Starting the engine ..........................5-2
Shifting ............................................5-3
Engine break-in ...............................5-4
Parking ............................................5-4
Perio dic maintenance
an d a djustment .................................6-1
Owner’s tool kit ...............................6-2
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
Coolant ......................................... 6-11
Replacing the air filter element and cleaning the check hose..... 6-13
Checking the throttle grip free play.............................. 6-14
Valve clearance ............................. 6-15
Tires .............................................. 6-15
Cast wheels .................................. 6-17
Adjusting the clutch
lever free play ............................ 6-18
Checking the brake lever free play ............................ 6-19
Brake light switches ...................... 6-19
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 ........................... 6-22
Cleaning and lubricating the drive chain ........................... 6-24
Checking and lubricating
the cables .................................. 6-24
Checking and lubricating the throttle grip and cable ......... 6-25
Checking and lubricating the brake and shift pedals ............... 6-25
Checking and lubricating the
brake and clutch levers ............. 6-26
Checking and lubricating the sidestand ............................. 6-26
Lubricating the swingarm pivots ........................ 6-27
Checking the front fork ................. 6-27
Checking the steering ................... 6-28
Checking the wheel bearings ....... 6-28
Battery .......................................... 6-29
Replacing the fuses ...................... 6-30
Replacing the headlight bulb ........ 6-32
Auxiliary light ................................. 6-33
Tail/brake light .............................. 6-33
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Instrument and control functions
3-1
3
EAU10462
Main switch/steerin g 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.
EAU62480 (on)
All electrical circuits are supplied with
power; the meter lighting, taillight, li-
cense plate light and auxiliary light
come on, and the engine can be start-
ed. The key cannot be removed.
TIP
The headlight comes on automatically
when the engine is started and stays
on until the key is turned to “ ”, even
if the engine stalls.
EAU54301 (off)
All electrical systems are off. The key
can be removed.
WARNING
EWA16371
Never turn the key to “ ” or “LOCK”
while the vehicle is movin g. Other-
wise the electrical systems will be
switched off, which may result in
loss of control or an acci dent.
EAU60863LOCK
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 “ ” 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
3-16
3
EAU13222
Fuel
Make sure there is sufficient gasoline in
the tank.
WARNING
EWA10882
Gasoline an d g asoline vapors are
extremely flamma ble. To avoi d fires
an d explosions an d to re duce the
risk of injury when refuelin g, follow
these instructions.
1. Before refueling, turn off the en- gine and be sure that no one is sit-
ting on the vehicle. Never refuel
while smoking, or while in the vi-
cinity of sparks, open flames, or
other sources of ignition such as
the pilot lights of water heaters
and clothes dryers.
2. Do not overfill the fuel tank. When refueling, be sure to insert the
pump nozzle into the fuel tank filler
hole. Stop filling when the fuel
reaches the bottom of the filler
tube. Because fuel expands when
it heats up, heat from the engine or
the sun can cause fuel to spill out
of the fuel tank. 3. Wipe up any spilled fuel immedi-
ately. NOTICE: Immediately
wipe off spille d fuel with a clean,
d ry, soft cloth, since fuel may
d eteriorate painte d surfaces or
plastic parts.
[ECA10072]
4. Be sure to securely close the fuel tank cap.
WARNING
EWA15152
Gasoline is poisonous an d can
cause injury or death. Han dle gaso-
line with care. Never siphon gasoline
b y mouth. If you shoul d swallow
some gasoline or inhale a lot of gas-
oline vapor, or get some gasoline in
your eyes, see your doctor imme di-
ately. If gasoline spills on your skin,
wash with soap an d water. If gaso-
line spills on your clothin g, chan ge
your clothes.
EAU79080
NOTICE
ECA11401
Use only unlea ded g asoline. The use
of lead ed g asoline will cause severe
d amag e to internal en gine parts,
such as the valves an d piston rin gs,
as well as to the exhaust system.
1. Fuel tank filler tube
2. Maximum fuel level
21
Recommen ded fuel:
Regular unleaded gasoline (Gasohol
[E10] acceptable)
Fuel tank capacity: 14 L (3.7 US gal, 3.1 Imp.gal)
Fuel reserve amount:
3.0 L (0.79 US gal, 0.66 Imp.gal)
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Instrument and control functions
3-23
3
EAU15306
Si destan d
The sidestand is located on the left
side of the frame. Raise the sidestand
or lower it with your foot while holding
the vehicle upright.
TIP
The built-in sidestand switch is part of
the ignition circuit cut-off system,
which cuts the ignition in certain situa-
tions. (See the following section for an
explanation of the ignition circuit cut-
off system.)
WARNING
EWA10242
The vehicle must not be ri dden with
the si destan d d own, or if the si de-
stan d cannot b e properly move d up
(or does not stay up), otherwise the
si destan d coul d contact the groun d
an d d istract the operator, resultin g
in a possib le loss of control.
Yamaha’s ig nition circuit cut-off
system has been desi gne d to assist
the operator in fulfillin g the respon-
si bility of raisin g the si destan d b e-
fore startin g off. Therefore, check
this system re gularly an d have a
Yamaha dealer repair it if it does not
function properly.
EAU66730
I g nition circuit cut-off system
The ignition circuit cut-off system
(comprising the sidestand switch,
clutch switch and neutral switch) has
the following functions.
z It prevents starting when the
transmission is in gear and the
sidestand is up, but the clutch le-
ver is not pulled.
z It prevents starting when the
transmission is in gear and the
clutch lever is pulled, but the side-
stand is still down.
z 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.
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For your safety – pre-operation checks
4-2
4
Throttle grip • Make sure that operation is smooth.
• Check throttle grip free play.
• If necessary, have Yamaha dealer adjust throttle grip
free play and lubricate cable and grip housing. 6-14,
6-25
Control ca bles • Make sure that operation is smooth.
• Lubricate if necessary.
6-24
Drive chain • Check chain slack.
• Adjust if necessary.
• Check chain condition.
• Lubricate if necessary. 6-22,
6-24
Wheels an d tires •Check for damage.
• Check tire condition and tread depth.
• Check air pressure.
• Correct if necessary. 6-15,
6-17
Brake an d shift pe dals • Make sure that operation is smooth.
• Lubricate pedal pivoting points if necessary. 6-25
Brake an d clutch le-
vers • Make sure that operation is smooth.
• Lubricate lever pivoting points if necessary.
6-26
Si destan d • Make sure that operation is smooth.
• Lubricate pivot if necessary. 6-26
Chassis fasteners • Make sure that all nuts, bolts and screws are properly
tightened.
• Tighten if necessary. —
Instruments, li ghts,
si gnals an d switches • Check operation.
• Correct if necessary.
—
Si destan d switch • Check operation of ignition circuit cut-off system.
• If system is not working correctly, have Yamaha dealer
check vehicle. 3-23
ITEM CHECKS PAGE
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Operation and important rid ing points
5-2
5
EAU67610
Startin g the en gine
In order for the ignition circuit cut-off
system to enable starting, one of the
following conditions must be met:
z The transmission is in the neutral
position.
z The transmission is in gear with
the clutch lever pulled and the
sidestand up.
See page 3-23 for more informa-
tion.
1. Turn the key to “ ” and make sure that the engine stop switch is
set to “ ”.
The engine trouble warning light
should come on for a few sec-
onds, then go off. NOTICE: If the
warnin g lig ht does not go off,
have a Yamaha dealer check its
electrical circuit.
[ECAT1121]
The ABS warning light should
come on when the main switch is
turned to “ON” and then go off af-
ter traveling at a speed 10 km/h (6
mi/h) or higher.
NOTICE
ECA17682
If the ABS warnin g lig ht does not
come on an d then g o off as ex-
plaine d a bove, see pa ge 3-2 for the
warnin g lig ht circuit check.
2. Shift the transmission into the
neutral position. The neutral indi-
cator light should come on. If not,
ask a Yamaha dealer to check the
electrical circuit.
3. Start the engine by pushing the start switch.
If the engine fails to start, release
the start switch, wait a few sec-
onds, and then try again. Each starting attempt should be as
short as possible to preserve the
battery. Do not crank the engine
more than 10 seconds on any one
attempt.
NOTICE
ECA11043
For maximum en
gine life, never ac-
celerate har d when the en gine is
col d!
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Periodic maintenance an d a djustment
6-31
6
5. Place the tray in its original posi-
tion, and then install the quick fas-
teners.
6. Install the passenger seat.
Fuse box 1 is located behind the center
cover. (See page 3-18.)
Fuse box 1
Fuse box 2 is located under the rider
seat. (See page 3-18.) Fuse
box 2
If a fuse is blown, replace it as follows. 1. Turn the key to “ ” and turn off the electrical circuit in question.
2. Remove the blown fuse, and then install a new fuse of the specified
amperage. WARNING! Do not
use a fuse of a hi gher ampera ge
ratin g than recommen ded to
avoi d causin g extensive dam-
a g e to the electrical system an d
possi bly a fire.
[EWA15132]
1. Fuse box 1
1. Ignition fuse
2. Signaling system fuse
3. ABS control unit fuse
4. Backup fuse (for clock)
5. Headlight fuse
6. Radiator fan motor fuse
7. Spare fuse
1
71
2
3
5
6
4
1. Fuse box 2
1. Spare fuse
2. ABS solenoid fuse
3. ABS motor fuse
1
123
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Periodic maintenance an d a djustment
6-32
6 3. Turn the key to “ ” and turn on
the electrical circuit in question to
check if the device operates.
4. If the fuse immediately blows again, have a Yamaha dealer
check the electrical system.
EAU68470
Replacin g the hea dlig ht bul b
This model is equipped with halogen
bulb headlight. If a headlight bulb
burns out, have a Yamaha dealer re-
place it and, if necessary, adjust the
headlight beam.
NOTICE
ECA17871
Hea dlig ht lens:
Do not affix any type of tinted film or
stickers to the head light lens.
Do not use a hea dlig ht bul b of a
wattag e higher than specified .
Specified fuses:
Main fuse: 30.0 A
Headlight fuse:
15.0 A
Signaling system fuse: 7.5 A
Ignition fuse: 15.0 A
Radiator fan motor fuse:
7.5 A
ABS motor fuse: 30.0 A
ABS solenoid fuse: 15.0 A
ABS control unit fuse:
7.5 A
Backup fuse: 7.5 A
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