2003 YAMAHA TW125 key

3-13
INSTRUMENT AND CONTROL FUNCTIONS
3
With the engine turned off:
1. Move the sidestand down.
2. Make sure that the engine stop switch is set to “
#”.
3. Turn the key to “ON”.
4. Shift the transmission into the neutral position.
5. Push the start switch.
Does the engine start?
The neutral switch may be defective.
The motorcycle should not be ridden until
checked by a Yamaha dealer.
With the engine still running:
6. Move the sidestand up.
7. Keep the clutch lever pulled.
8. Shift the transmission into gear.
9. Move the sidestand down.
Does the engine stall?
After the engine has stalled:
10. Move the sidestand up.
11. Keep the clutch lever pulled.
12. Push the start switch.
Does the engine start?
The sidestand switch may be defective.
The motorcycle should not be ridden until
checked by a Yamaha dealer.
The clutch switch may be defective.
The motorcycle should not be ridden until
checked by a Yamaha dealer.
NO
NOTE:
This check is most reliable if performed with
a warmed-up engine.
YES
YES NO
The system is OK. The motorcycle can be ridden.
YES NO
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5-1
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OPERATION AND IMPORTANT RIDING POINTS
5
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8Become thoroughly familiar
with all operating controls and
their functions before riding.
Consult a Yamaha dealer
regarding any control or func-
tion that you do not thorough-
ly understand.
8Never start the engine or oper-
ate it in a closed area for any
length of time. Exhaust fumes
are poisonous, and inhaling
them can cause loss of con-
sciousness and death within a
short time. Always make sure
that there is adequate ventila-
tion.
8Before starting out, make sure
that the sidestand is up. If the
sidestand is not raised com-
pletely, it could contact the
ground and distract the opera-
tor, resulting in a possible loss
of control.
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Starting a cold engine
In order for the ignition circuit cut-off
system to enable starting, one of the
following conditions must be met:
8The transmission is in the neutral
position.
8The transmission is in gear with
the clutch lever pulled and the
sidestand up.
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8Before starting the engine,
check the function of the igni-
tion circuit cut-off system
according to the procedure
described on page 3-13.
8Never ride with the sidestand
down.
1. Turn the fuel cock lever to “ON”.
2. Turn the key to “ON” and make
sure that the engine stop switch
is set to “#”.
3. Shift the transmission into the
neutral position.
NOTE:
When the transmission is in the neu-
tral position, the neutral indicator light
should be on, otherwise have a
Yamaha dealer check the electrical
circuit.
ONFUEL
RES
OFF
1ON
1. Arrow mark positioned over “ON”
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5-5
OPERATION AND IMPORTANT RIDING POINTS
5
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Parking
When parking, stop the engine,
remove the key from the main switch,
and then turn the fuel cock lever to
“OFF”.
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8Since the engine and exhaust
system can become very hot,
park in a place where pedestri-
ans or children are not likely
to touch them.
8Do not park on a slope or on
soft ground, otherwise the
motorcycle may overturn.
RES
ONFUEL
OFF
1
1. Arrow mark positioned over “OFF”
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6-33
PERIODIC MAINTENANCE AND MINOR REPAIR
6To charge the battery
Have a Yamaha dealer charge the
battery as soon as possible if it
seems to have discharged. Keep in
mind that the battery tends to dis-
charge more quickly if the motorcycle
is equipped with optional electrical
accessories.
To store the battery
1. If the motorcycle will not be used
for more than one month,
remove the battery, fully charge
it, and then place it in a cool, dry
place.
2. If the battery will be stored for
more than two months, check it
at least once a month and fully
charge it if necessary.
3. Fully charge the battery before
installation.
4. After installation, make sure that
the battery leads are properly
connected to the battery termi-
nals.
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8Always keep the battery
charged. Storing a discharged
battery can cause permanent
battery damage.
8To charge a sealed-type (MF)
battery, a special (constant-
voltage) battery charger is
required. Using a conventional
battery charger will damage
the battery. If you do not have
access to a sealed-type (MF)
battery charger, have a
Yamaha dealer charge your
battery.
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Replacing the fuse
The fuse holder is located behind
panel B. (See page 6-6 for panel
removal and installation procedures.)
If the fuse is blown, replace it as fol-
lows.
1. Turn the key to “OFF” and turn
off all electrical circuits.
2. Remove the blown fuse, and
then install a new fuse of the
specified amperage.
1 2
1. Fuse
2. Spare fuse
Specified fuse: 20 A
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6-34
PERIODIC MAINTENANCE AND MINOR REPAIR
6
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Do not use a fuse of a higher
amperage rating than recommend-
ed to avoid causing extensive
damage to the electrical system
and possibly a fire.
3. Turn the key to “ON” and turn on
the electrical circuits to check if
the devices operate.
4. If the fuse immediately blows
again, have a Yamaha dealer
check the electrical system.
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Replacing the headlight bulb
This motorcycle is equipped with a
quartz bulb headlight. If the headlight
bulb burns out, replace it as follows.
1. Remove the headlight unit by
removing the screws.
1
1. Screw (×2)
2. Disconnect the headlight cou-
pler, and then remove the bulb
cover.
1
2
1. Headlight coupler
2. Bulb cover
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9-1
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CONSUMER INFORMATION
9
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Identification numbers
Record the key identification number,
vehicle identification number and
model label information in the spaces
provided below for assistance when
ordering spare parts from a Yamaha
dealer or for reference in case the
vehicle is stolen.
1. KEY IDENTIFICATION
NUMBER:
2. VEHICLE IDENTIFICATION
NUMBER:
3. MODEL LABEL INFORMATION:
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Vehicle identification number
The vehicle identification number is
stamped into the steering head pipe.
Record this number in the space pro-
vided.
NOTE:
The vehicle identification number is
used to identify your motorcycle and
may be used to register your motor-
cycle with the licensing authority in
your area.
1
1. Vehicle identification number
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Key identification number
The key identification number is
stamped into the key.
Record this number in the space pro-
vided and use it for reference when
ordering a new key.
1
1. Key identification number
1
6
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