
PERIODIC MAINTENANCE AND MINOR REPAIR
6-33
6
EAU42130
Troubleshooting charts
Starting problems or poor engine performanceEWA10840
s s
WARNING
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. 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.
1B9-F8199-E2.qxd 13/11/07 12:18 Página 74

PERIODIC MAINTENANCE AND MINOR REPAIR
6-34
6 Engine overheating
EWA10400
s s
WARNING
●Do not remove the radiator cap when the engine and radiator are hot. Scalding hot fluid and steam may be
blown out under pressure, which could cause serious injury. Be sure to wait until the engine has cooled.
●After removing the radiator cap retaining bolt, place a thick rag, like a towel, over the radiator cap, and then
slowly rotate the cap counterclockwise to the detent to allow any residual pressure to escape. When the his-
sing sound has stopped, press down on the cap while turning it counterclockwise, and then remove the cap.
Wait until the
engine has cooled.Check the coolant level in the
reservoir and radiator.
The coolant level
is OK.
The coolant level is low.
Check the cooling system
for leakage.
Have a Yamaha dealer checkand repair the cooling system.
Add coolant. (See NOTE.)
Start the engine. If the engine overheats again, have a
Yamaha dealer check and repair the cooling system.
There is
leakage.
There is
no leakage.
NOTE:
If coolant is not available, tap water can be temporarily used instead, provided that it is changed to the recommended
coolant as soon as possible.
1B9-F8199-E2.qxd 13/11/07 12:18 Página 75

After normal use
Remove dirt with warm water, a mild
detergent, and a soft, clean sponge,
and then rinse thoroughly with clean
water. Use a toothbrush or bottle-
brush for hard-to-reach areas. Stub-
born dirt and insects will come off
more easily if the area is covered with
a wet cloth for a few minutes before
cleaning.
After riding in the rain, near the sea or
on salt-sprayed roads
Since sea salt or salt sprayed on the
roads during winter are extremely
corrosive in combination with water,
carry out the following steps after
each ride in the rain, near the sea or
on salt-sprayed roads.
NOTE:
Salt sprayed on roads in the winter
may remain well into spring.
1. Clean the scooter with cold water
and a mild detergent after the
engine has cooled down.
ECA10790
CAUTION:
Do not use warm water since it
increases the corrosive action of
the salt.
2. Apply a corrosion protection
spray on all metal, including
chrome- and nickel-plated, surfa-
ces to prevent corrosion.
After cleaning
1. Dry the scooter with a chamois or
an absorbing cloth.
2. Use a chrome polish to shine
chrome, aluminum and stainless-
steel parts, including the exhaust
system. (Even the thermally indu-
ced discoloring of stainless-steel
exhaust systems can be removed
through polishing.)
3. To prevent corrosion, it is recom-
mended to apply a corrosion pro-
tection spray on all metal, inclu-
ding chrome- and nickel-plated,
surfaces.
4. Use spray oil as a universal clea-
ner to remove any remaining dirt.
5. Touch up minor paint damage
caused by stones, etc.6. Wax all painted surfaces.
7. Let the scooter dry completely
before storing or covering it.
EWA10940
s s
WARNING
●Make sure that there is no oil or
wax on the brakes or tires. If
necessary, clean the brake
discs and brake linings with a
regular brake disc cleaner or
acetone, and wash the tires
with warm water and a mild
detergent.
●Before operating the scooter
test its braking performance
and cornering behavior.
ECA10800
CAUTION:
●Apply spray oil and wax spa-
ringly and make sure to wipe
off any excess.
●Never apply oil or wax to any
rubber and plastic parts, but
treat them with a suitable care
product.
●Avoid using abrasive polishing
compounds as they will wear
away the paint.
SCOOTER CARE AND STORAGE
7-2
7
1B9-F8199-E2.qxd 13/11/07 12:18 Página 77

NOTE:
Consult a Yamaha dealer for advice
on what products to use.EAU36560
Storage
Short-term
Always store your scooter in a cool,
dry place and, if necessary, protect it
against dust with a porous cover.
ECA10820
CAUTION:
●Storing the scooter in a poorly
ventilated room or covering it
with a tarp, while it is still wet,
will allow water and humidity to
seep in and cause rust.
●To prevent corrosion, avoid
damp cellars, stables (because
of the presence of ammonia)
and areas where strong chemi-
cals are stored.
Long-term
Before storing your scooter for seve-
ral months:
1. Follow all the instructions in the
“Care” section of this chapter.
2. Fill up the fuel tank and add fuel
stabilizer (if available) to prevent
the fuel tank from rusting and the
fuel from deteriorating.3. Perform the following steps to
protect the cylinder, piston rings,
etc. from corrosion.
a. Remove the spark plug cap and
spark plug.
b. Pour a teaspoonful of engine oil
into the spark plug bore.
c. Install the spark plug cap onto
the spark plug, and then place
the spark plug on the cylinder
head so that the electrodes are
grounded. (This will limit sparking
during the next step.)
d. Turn the engine over several
times with the starter. (This will
coat the cylinder wall with oil.)
e. Remove the spark plug cap from
the spark plug, and then install
the spark plug and the spark plug
cap.EWA10950
s s
WARNING
To prevent damage or injury from
sparking, make sure to ground the
spark plug electrodes while turning
the engine over.
SCOOTER CARE AND STORAGE
7-3
7
1B9-F8199-E2.qxd 13/11/07 12:18 Página 78

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
8
1B9-F8199-E2.qxd 13/11/07 12:18 Página 82

INDEX
AAcceleration and deceleration ...................5-2
Air filter and V-belt case air filter
elements ................................................6-15
Anti-theft alarm (optional) ..........................3-9
Auxiliary light bulb, replacing ...................6-32
BBattery......................................................6-26
Brake fluid level, checking .......................6-21
Brake fluid, changing ...............................6-22
Brake lever, front ......................................3-10
Brake lever, rear .......................................3-11
Brake levers, lubricating ..........................6-23
Braking .......................................................5-3
CCables, checking and lubricating ............6-23
Care............................................................7-1
Catalytic converters .................................3-13
Centerstand and sidestand, checking
and lubricating .......................................6-24
Coolant.....................................................6-14
Coolant temperature gauge .......................3-5
Cowlings and panel, removing and
installing ...................................................6-7
DDimmer switch ...........................................3-9
Display, multi-function ...............................3-6
EEngine break-in ..........................................5-4
Engine oil .................................................6-10
Engine trouble warning light ......................3-3
FFinal transmission oil ...............................6-13
Front and rear brake lever free play.........6-20Front and rear brake pads, checking ......6-21
Front fork, checking .................................6-24
Fuel ..........................................................3-12
Fuel consumption, tips for reducing ..........5-3
Fuel gauge .................................................3-5
Fuel level warning light ..............................3-3
Fuel tank cap ...........................................3-11
Fuses, replacing .......................................6-27
HHandlebar switches ...................................3-9
Hazard switch ............................................3-9
Headlight bulb, replacing .........................6-29
High beam indicator light...........................3-3
Horn switch ................................................3-9
I
Identification numbers ...............................9-1
Ignition circuit cut-off system ..................3-18
Immobilizer system ....................................3-1
Immobilizer system indicator light .............3-3
Indicator and warning lights ......................3-3
KKey identification number ..........................9-1
LLicense plate light bulb, replacing ...........6-32
MMain switch/steering lock ..........................3-2
Matte color, caution ...................................7-4
Model label ................................................9-2
PParking .......................................................5-4
Part locations .............................................2-1
Periodic maintenance and lubrication
chart .........................................................6-3
Pre-operation check list .............................4-2
SSafe-riding points.......................................1-1
Safety information ......................................1-1
Seat ..........................................................3-14
Self-diagnosis device.................................3-4
Shock absorber assemblies, adjusting....3-17
Sidestand .................................................3-18
Spark plug, checking .................................6-9
Specifications.............................................8-1
Speedometer .............................................3-4
Start switch ................................................3-9
Starting off .................................................5-2
Starting the engine.....................................5-1
Steering, checking ...................................6-25
Storage.......................................................7-3
Storage compartment (front) ...................3-15
Storage compartment (rear) .....................3-16
Storage compartments ............................3-14
TTail/brake light bulb or rear turn signal
light bulb, replacing ...............................6-30
Throttle cable free play, adjusting ............6-17
Throttle grip and cable, checking and
lubricating ..............................................6-23
Tires .........................................................6-18
Tool kit ........................................................6-1
Troubleshooting .......................................6-32
Troubleshooting charts ............................6-33
Turn signal indicator lights .........................3-3
Turn signal light bulb (front), replacing ....6-30
Turn signal switch ......................................3-9
VValve clearance ........................................6-17
Vehicle identification number .....................9-1
1B9-F8199-E2.qxd 13/11/07 12:18 Página 85