Page 68 of 84
PERIODIC MAINTENANCE AND MINOR REPAIR
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9of contact, administer the fol-
lowing FIRST AID.
EXTERNAL: Flush with plenty
of water.
INTERNAL: Drink large quan-
tities of water or milk and im-
mediately call a physician.
EYES: Flush with water for 15
minutes and seek prompt
medical attention.
Batteries produce explosive hy-
drogen gas. Therefore, keep
sparks, flames, cigarettes, etc.,
away from the battery and pro-
vide sufficient ventilation when
charging it in an enclosed
space.
KEEP THIS AND ALL BATTER-
IES OUT OF THE REACH OF
CHILDREN.
To store the battery
1. If the vehicle 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 morethan two months, check it at least
once a month and fully charge it if
necessary.
3. Fully charge the battery before in-
stallation.
4. After installation, make sure that
the battery leads are properly con-
nected to the battery terminals.
CAUTION:
ECA10630
Always keep the battery
charged. Storing a discharged
battery can cause permanent
battery damage.
To charge a sealed-type (MF)
battery, a special (constant-volt-
age) 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 charg-
er, have a Yamaha dealer
charge your battery.
EAU23513
Replacing the fuses
The main fuse box is located beside the
battery and can be accessed as fol-
lows:
1. Open the seat. (See page 3-13.)
2. Remove the battery cover. (See
page 6-27.)
3. Disconnect the negative battery
lead, and then lift the battery as
shown.
The fuse box, which contains the fuses
for the individual circuits, is located un-
1. Main fuse
2. Spare main fuse
3. Negative battery lead
4. Fuse box
5. Parking lighting fuse
3
2
4
51
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PERIODIC MAINTENANCE AND MINOR REPAIR
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9
der the battery cover and can be ac-
cessed as follows.
1. Open the seat. (See page 3-13.)
2. Remove the battery cover.
If a fuse is blown, replace it as follows.
1. Turn the key to “OFF” and turn off
the electrical circuit in question.
2. Remove the blown fuse, and then
install a new fuse of the specified
amperage.
CAUTION:
ECA10640
Do not use a fuse of a higher amper-
age rating than recommended to
avoid causing extensive damage to
the electrical system and possibly a
fire.
3. Turn the key to “ON” and turn on
the electrical circuit in question to
1. Signaling system fuse
2. Headlight fuse
3. Ignition fuse
4. Radiator fan fuse
5. Electronic fuel injection fuse
6. Backup fuse (for odometer and clock)
7. Spare fuse
7
123456
Specified fuses:
Main fuse:
30.0 A
Headlight fuse:
15.0 A
Signaling system fuse:
20.0 A
Ignition fuse:
10.0 A
Parking lighting fuse:
10.0 A
Radiator fan fuse:
15.0 A
Electronic fuel injection fuse:
10.0 A
Backup fuse:
10.0 A
Page 72 of 84
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EAU25911
Troubleshooting charts
Starting problems or poor engine
performance
WARNING
EWA10840
Keep away open flames and do not smoke while checking or working on the fuel system.
Check the fuel level in
the fuel tank.1. Fuel
There 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. Compression
There is compression.
There is no compression.
Check the ignition.
Have a Yamaha dealer
check the vehicle.
Remove the spark plugs
and check the electrodes.3. Ignition
Wipe off with a dry cloth and correct the
spark plug gaps, or replace the spark plugs.
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. Battery
The engine turns over
quickly.
The engine turns over
slowly.
The battery is good.Check the battery lead connections,
and charge the battery if necessary.
DryWet
Open the throttle halfway and operate
the electric starter.
Page 77 of 84
SCOOTER CARE AND STORAGE
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9
WARNING
EWA10950
To prevent damage or injury from
sparking, make sure to ground the
spark plug electrodes while turning
the engine over.
5. Lubricate all control cables and the
pivoting points of all levers and
pedals as well as of the sidestand/
centerstand.
6. Check and, if necessary, correct
the tire air pressure, and then lift
the scooter so that both of its
wheels are off the ground. Alterna-
tively, turn the wheels a little every
month in order to prevent the tires
from becoming degraded in one
spot.
7. Cover the muffler outlet with a
plastic bag to prevent moisture
from entering it.
8. Remove the battery and fully
charge it. Store it in a cool, dry
place and charge it once a month.
Do not store the battery in an ex-
cessively cold or warm place[less than 0 °C (30 °F) or more
than 30 °C (90 °F)]. For more in-
formation on storing the battery,
see page 6-27.
NOTE:
Make any necessary repairs before
storing the scooter.
Page 79 of 84
SPECIFICATIONS
8-2
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89
Operation:
Centrifugal automatic type
Chassis:
Frame type:
Diamond
Caster angle:
28.0 °
Trail:
95.0 mm (3.74 in)
Front tire:
Type:
Tubeless
Size:
120/70R-14M/C 55H
Manufacturer/model:
DUNLOP/D252F
Manufacturer/model:
BRIDGESTONE/TH01F
Rear tire:
Type:
Tubeless
Size:
160/60R-15M/C 67H
Manufacturer/model:
DUNLOP/D252
Manufacturer/model:
BRIDGESTONE/TH01R
Loading:
Maximum load:
190 kg (419 lb)
* (Total weight of rider, passenger, cargo
and accessories)
Tire air pressure (measured on cold
tires):
Loading condition:
0–90 kg (0–198 lb)
Front:
225 kPa (33 psi) (2.25 kgf/cm
2
)
Rear:
250 kPa (36 psi) (2.50 kgf/cm
2
)
Loading condition:
90–190 kg (198–419 lb)
Front:
225 kPa (33 psi) (2.25 kgf/cm
2
)
Rear:
280 kPa (41 psi) (2.80 kgf/cm
2
)
Front wheel:
Wheel type:
Cast wheel
Rim size:
14M/C x MT3.50
Rear wheel:
Wheel type:
Cast wheel
Rim size:
15M/C x MT5.00
Front brake:
Type:
Dual disc brake
Operation:
Right hand operation
Recommended fluid:
DOT 4
Rear brake:
Type:
Single disc brake
Operation:
Left hand operation
Recommended fluid:
DOT 4
Front suspension:
Type:
Telescopic fork
Spring/shock absorber type:
Coil spring/oil damper
Wheel travel:
120.0 mm (4.72 in)
Rear suspension:
Type:
Swingarm
Spring/shock absorber type:
Coil spring/gas-oil damper
Wheel travel:
117.0 mm (4.61 in)
Electrical system:
Ignition system:
Transistorized coil ignition (digital)
Charging system:
A.C. magneto
Battery:
Model:
GT9B-4
Voltage, capacity:
12 V, 8.0 Ah
