2004 YAMAHA VERSITY 300 maintenance

PERIODIC MAINTENANCE AND MINOR REPAIR
6
EAU01144
Checking the wheel bearings
The front and rear wheel bearings must
be checked at the intervals specified in
the periodic maintenance and
lubrication chart. If there is play in the
wheel hub or if the wheel does not turn
smoothly, have a Yamaha dealer check
the wheel bearings.
EAU04464
Battery
The battery is located behind panel B.
(See page 6-9 for panel removal and
installation procedures.)
This scooter is equipped with a sealed-
type (MF) battery, which does not
require any maintenance. There is no
need to check the electrolyte or to add
distilled water.
1. Battery
To 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 discharge more
quickly if the scooter is equipped with
optional electrical accessories.
EW000116
•Electrolyte is poisonous and
dangerous since it contains
sulfuric acid, which causes
severe burns. Avoid any contact
with skin, eyes or clothing and
always shield your eyes when
working near batteries. In case
of contact, administer the
following FIRST AID.
•EXTERNAL: Flush with
plenty of water.
•INTERNAL: Drink large
quantities of water or milk
and immediately call a
physician.
WARNING
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PERIODIC MAINTENANCE AND MINOR REPAIR
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•EYES: Flush with water for
15 minutes and seek prompt
medical attention.
•Batteries produce explosive
hydrogen gas. Therefore, keep
sparks, flames, cigarettes, etc.,
away from the battery and
provide sufficient ventilation
when charging it in an enclosed
space.
•KEEP THIS AND ALL BATTE-
RIES OUT OF THE REACH OF
CHILDREN.To store the battery
1. If the scooter 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.EC000102
•Always keep the battery
charged. Storing a discharged
battery can cause permanent
battery damage.
•To charge a sealed-type (MF)
battery, a special (constant-vol-
tage) 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.
CAUTION:
1. Main fuse
2. Spare fuse
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EAUM0110
Replacing the fuses
The main fuse box is located behind
panel C. (See page 6-10 for panel
removal and installation procedures.)

PERIODIC MAINTENANCE AND MINOR REPAIR
6
1. Backup fuse
2. Headlight fuse
3. Radiator fan fuse
4. Signaling system fuse
5. Ignition fuse
6. Auxiliary DC jack fuse
7. Spare fuse (x2)
8. Fuse tongs
CAUTION:
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ZAUM0460
The fuse block, which contains the fu-
ses for the individual circuits, is located
in the storage compartment A. (See
page 3-12 for storage compartment
opening and closing procedures.)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.
Specified fuses:
Main fuse Box
Main fuse: 30 A
Fuse block
Backup fuse 3 A
Headlight fuse: 15 A
Radiator fan fuse: 15 A
Signaling system fuse: 15 A
Ignition fuse: 7.5 A
Auxiliary DC jack fuse: 3 A3. 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.
EC000103
Do not use a fuse of a higher
amperage rating than recommended
to avoid causing extensive damage
to the electrical system and possibly
a fire.

PERIODIC MAINTENANCE AND MINOR REPAIR
6
EAU04285
Replacing the headlight bulb
This scooter is equipped with a quartz
bulb headlight. If the headlight bulb
burns out, replace it as follows.
1. Remove cowling A together with
the headlight unit. (See page 6-7
for cowling removal and installa-
tion procedures.)
WARNING
1. Bulb cover
2. Headlight coupler
3. Remove the headlight bulb holder
by pushing it inward and turning
it counterclockwise, and then
remove the defective bulb.
EW000119
Headlight bulbs get very hot.
Therefore, keep flammable products
away from a lit headlight bulb, and
do not touch the bulb until it has
cooled down. 2. Disconnect the headlight coupler,
and then remove the bulb cover.
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1. Headlight bulb holder

PERIODIC MAINTENANCE AND MINOR REPAIR
6
CAUTION:4. Place a new headlight bulb into
position, and then secure it with
the bulb holder.EC000105
Do not touch the glass part of the
headlight bulb to keep it free from
oil, otherwise the transparency of the
glass, the luminosity of the bulb, and
the bulb life will be adversely
affected. Thoroughly clean off any
dirt and fingerprints on the headlight
bulb using a cloth moistened with
alcohol or thinner.
5. Install the headlight bulb cover,
and then connect the coupler.
6. Install the cowling together with
the headlight unit.7. Have a Yamaha dealer adjust the
headlight beam if necessary.
a. Do not touch the glass part of the bulb
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PERIODIC MAINTENANCE AND MINOR REPAIR
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EAUT0022*
Replacing a front turn signal
light bulb
1. Place the scooter on the
centerstand.
2. Remove cowling A. (See page
6-7 for cowling removal and ins-
tallation procedures.)
3. Remove the socket (together with
the bulb) by turning it
counterclockwise.
4. Remove the defective bulb by
pushing it in and turning it
counterclockwise.
5. Insert a new bulb into the socket,
push it in, and then turn it
clockwise until it stops.
6. Install the socket (together with
the bulb) by turning it clockwise.
7. Install the cowling.
1. Turn signal socket (x2)
EAUT0021*
Replacing the tail/brake light
bulb or a rear turn signal
light bulb
1. Place the scooter on the
centerstand.
2. Remove panel E. (See page
6-11 for panel removal and ins-
tallation procedures.)
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PERIODIC MAINTENANCE AND MINOR REPAIR
6
1. Turn signal socket (x2)
2. Tail/brake socket (x2)
3. Remove the socket (together with
the bulb) by turning it
counterclockwise.
4. Remove the defective bulb by
pushing it in and turning it
counterclockwise.
5. Insert a new bulb into the socket,
push it in, and then turn it
clockwise until it stops.
6. Install the socket (together with
the bulb) by turning it clockwise.
7. Install the panel.
1. Bulb socket
2. Screw
EAUM0062
Replacing the license plate
light bulb
1. Remove the license plate light
cover by removing the screw.
2. Remove the socket (together with
the bulb) by pulling it out.
3. Remove the defective bulb by
pulling it out.
4. Insert a new bulb into the socket.
5. Install the socket (together with
the bulb) by pushing it in.
6. Install the license plate light cover
by installing the screw.
EAU03087
Troubleshooting
Although Yamaha scooters 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
yourself. However, should your scoo-
ter require any repair, take it to a
Yamaha dealer, whose skilled
technicians have the necessary tools,
experience, and know-how to service
the scooter properly.
Use only genuine Yamaha replacement
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.
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PERIODIC MAINTENANCE AND MINOR REPAIR
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EAU01581
Troubleshooting charts
Starting problems or poor engine performanceEW000125
Keep away open flames and do not smoke while checking or working on the fuel system.
WARNING
Check the fuel level in
the fuel tank.
1. FuelThere is enough fuel.
There is no fuel.Check the compression.
Supply fuel.
The engine does not start.
Check the compression.
Operate the electric starter.
2. CompressionThere is compression.
There is no compression.Check the ignition.
Have a Yamaha dealer
check the vehicle.
Remove the spark plug
and check the electrodes.
3. IgnitionWipe off with a dry cloth and correct the
spark plug gap, or replace the spark plug.
Have a Yamaha dealer check the vehicle.
The engine does not start.
Have a Yamaha dealer
check the vehicle.
The engine does not start.
Check the battery.
Operate the electric starter.
4. BatteryThe engine turns over
quickly.
The engine turns over
slowly.The battery is good.
Check the battery lead connections,
and charge the battery if necessary.
Dry
WetOpen the throttle halfway and operate
the electric starter.
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