1. Auxiliary light bulb
4. Insert a new bulb into the socket.
5. Install the socket (together with
the bulb) by pushing it in.
6. Install the cowling.
EAU25881
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 sys-
tems, for example, can cause poor
starting and loss of power.
The following troubleshooting charts
represent quick and easy procedures
for checking these vital systems your-
self. However, should your scooter
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 replace-
ment 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.
EWA15141
s s
WARNING
When checking the fuel system, do
not smoke, and make sure there
are no open flames or sparks in the
area, including pilot lights from
water heaters or furnaces. Gasoli-
ne or gasoline vapors can ignite or
explode, causing severe injury or
property damage.
PERIODIC MAINTENANCE AND ADJUSTMENT
6-32
6
1B9-F8199-E3.QXD 21/10/08 13:43 Página 74
EAU42131
Troubleshooting charts
Starting problems or poor engine performance
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
We tOperate the electric starter.
PERIODIC MAINTENANCE AND ADJUSTMENT
6-33
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Chassis:Frame type:
Steel tube underbone
Caster angle:
28.00 degree
Trail:
100.0 mm (3.94 in)
Front tire:Type:
Tubeless
Size:
120/70-15 M/C 56S(Michelin -
Continental)
120/70-15 M/C 56P(Pirelli)
Manufacturer/model:
Michelin/GoldStandard
Manufacturer/model:
Continental/ContiTwist TL
Manufacturer/model:
Pirelli/GTS23
Rear tire:Type:
Tubeless
Size:
140/70-14 M/C 68S(Michelin -
Continental)
140/70-14 M/C 68P(Pirelli)
Manufacturer/model:
Michelin/GoldStandard
Manufacturer/model:
Continental/ContiTwist TL
Manufacturer/model:
Pirelli/GTS24
Loading:Maximum load:
189 kg (417 lb)
(Total weight of rider, passenger, cargo
and accessories)
Tire air pressure (measured on cold
tires):
Loading condition:
0-90 kg
Front:
190 kPa (28 psi) (1.90 kgf/cm
2) (1.90 bar)
Rear:
220 kPa (32 psi) (2.20 kgf/cm
2) (2.20 bar)
Loading condition:
90 kg - maximum load
Front:
210 kPa (30 psi) (2.10 kgf/cm
2) (2.10 bar)
Rear:
250 kPa (36 psi) (2.50 kgf/cm
2) (2.50 bar)
High-speed riding:
Front:
210 kPa (30 psi) (2.10 kgf/cm
2) (2.10 bar)
Rear:
250 kPa (36 psi) (2.50 kgf/cm
2) (2.50 bar)
Front wheel:Wheel type:
Cast wheel
Rim size:
15 x MT3.5
Rear wheel:Wheel type:
Cast wheel
Rim size:
14 x MT3.75
Front brake:Type:
Single 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:
94.0 mm (3.70 in)
Rear suspension:Spring/shock absorber type:
Coil spring/oil damper
Wheel travel:
83.0 mm (3.27 in)
Electrical system:Ignition system:
Transistorized coil ignition (digital)
Charging system:
AC magneto
Battery:Model:
YTX9-BS
SPECIFICATIONS
8-2
8
1B9-F8199-E3.QXD 21/10/08 13:43 Página 82
Voltage, capacity:
12 V, 8.0 Ah
Headlight:Bulb type:
Halogen bulb
Bulb voltage, wattage x quantity:Headlight:
12 V, 35 W/35.0 W x 2
Tail/brake light:
12 V, 21.0 W/5.0 W x 2
Front turn signal light:
12 V, 10.0 W x 2
Rear turn signal light:
12 V, 10.0 W x 2
Auxiliary light:
12 V, 5.0 W x 2
License plate light:
12 V, 5.0 W x 1
Meter lighting:
LED
High beam indicator light:
LED x 1
Turn signal indicator light:
LED x 2
Engine trouble warning light:
LED x 1
Immobilizer system indicator light:
LED x 1
Fuses:Main fuse:
30.0 A
Headlight fuse:
15.0 ASignaling system fuse:
15.0 A
Ignition fuse:
10.0 A
Radiator fan fuse:
10.0 A
ECU (Electronic Control Unit) fuse:
5.0 A
Backup fuse:
5.0 A
SPECIFICATIONS
8-3
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AAcceleration and deceleration ...................5-3
Air filter and V-belt case air filter
elements ................................................6-14
Anti-theft alarm (optional) ..........................3-9
Auxiliary light bulb, replacing ...................6-31
BBattery......................................................6-24
Brake fluid level, checking .......................6-20
Brake fluid, changing ...............................6-21
Brake lever, front ......................................3-10
Brake lever, rear .......................................3-10
Brake levers, lubricating ..........................6-22
Braking .......................................................5-3
CCables, checking and lubricating ............6-21
Care............................................................7-1
Catalytic converters .................................3-13
Centerstand and sidestand, checking
and lubricating .......................................6-22
Coolant.....................................................6-13
Coolant temperature gauge .......................3-5
Cowlings and panel, removing and
installing ...................................................6-6
DDimmer switch ...........................................3-9
Display, multi-function ...............................3-6
EEngine break-in ..........................................5-4
Engine oil ...................................................6-9
Engine trouble warning light ......................3-4
FFinal transmission oil ...............................6-12
Front and rear brake lever free play.........6-19Front and rear brake pads, checking ......6-19
Front fork, checking .................................6-23
Front storage compartment .....................3-16
Fuel ..........................................................3-12
Fuel consumption, tips for reducing ..........5-4
Fuel gauge .................................................3-5
Fuel level warning light ..............................3-4
Fuel tank cap ...........................................3-11
Fuses, replacing .......................................6-26
HHandlebar switches ...................................3-9
Hazard switch ..........................................3-10
Headlight bulb, replacing .........................6-28
High beam indicator light...........................3-3
Horn switch ................................................3-9
IIdentification numbers ...............................9-1
Ignition circuit cut-off system ..................3-19
Immobilizer system ....................................3-1
Immobilizer system indicator light .............3-4
Indicator and warning lights ......................3-3
KKey identification number ..........................9-1
LLicense plate light bulb, replacing ...........6-31
MMain switch/steering lock ..........................3-2
Maintenance and lubrication, periodic ......6-3
Maintenance, emission control system .....6-2
Matte color, caution ...................................7-1
Model label ................................................9-2
PParking .......................................................5-5
Part locations .............................................2-1Periodic maintenance and lubrication
chart .........................................................6-2
RRear storage compartment ......................3-17
SSafe-riding points.......................................1-5
Safety information ......................................1-1
Seat ..........................................................3-14
Securing bracket ......................................3-14
Shock absorber assemblies, adjusting....3-18
Sidestand .................................................3-18
Spark plug, checking .................................6-8
Specifications.............................................8-1
Speedometer .............................................3-5
Start switch ................................................3-9
Starting off .................................................5-2
Starting the engine.....................................5-1
Steering, checking ...................................6-24
Storage.......................................................7-3
Storage compartments ............................3-15
TTail/brake light bulb or rear turn signal
light bulb, replacing ...............................6-29
Throttle cable free play, adjusting ............6-15
Throttle grip and cable, checking and
lubricating ..............................................6-22
Tires .........................................................6-16
Tool kit ........................................................6-1
Troubleshooting .......................................6-32
Troubleshooting charts ............................6-33
Turn signal indicator lights .........................3-3
Turn signal light bulb (front), replacing ....6-29
Turn signal switch ......................................3-9
INDEX
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