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
When checking the fuel system, do
not smoke, and make sure there
are no open flames or sparks in thearea, including pilot lights from
water heaters or furnaces. Gasoli-
ne or gasoline vapors can ignite or
explode, causing severe injury or
property damage.
WARNING
PERIODIC MAINTENANCE AND ADJUSTMENT
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PERIODIC MAINTENANCE AND ADJUSTMENT
6-31
6
Engine overheatingEWA10400
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, a\
nd 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.
TIP
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.
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 TIP.)
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.
WARNING
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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.
EWA10941
Contaminants on the brakes or
tires can cause loss of control.
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
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.
TIP
Consult a Yamaha dealer for
advice on what products to use.
Washing, rainy weather or humid
climates can cause the headlight
lens to fog. Turning the headlight
on for a short period of time will
help remove the moisture from
the lens.
EAU36561
Storage
Short-term
Always store your scooter in a cool,
dry place and, if necessary, protect it
against dust with a porous cover.
ECA10820
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.
NOTICE
NOTICE
WARNING
SCOOTER CARE AND STORAGE
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3. Perform the following steps toprotect 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. WARNING!
To prevent damage or injury
from sparking, make sure
to ground the spark plug
electrodes while turning the
engine over.
[EWA10951]
4. Lubricate all control cables and the pivoting points of all levers and pedals as well as of the
sidestand/centerstand.
5. Check and, if necessary, correct the tire air pressure, and then lift
the scooter so that both of its
wheels are off the ground. Alter-
natively, turn the wheels a little
every month in order to prevent
the tires from becoming degra-
ded in one spot.
6. Cover the muffler outlet with a plastic bag to prevent moisture
from entering it.
7. 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 excessively cold or warm pla-
ce [less than 0 °C (30 °F) or more
than 30 °C (90 °F)]. For more
information on storing the bat-
tery, see page 6-24.
TIP
Make any necessary repairs before
storing the scooter.
SCOOTER CARE AND STORAGE
7-4
7
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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: 12 V, 2.0 W x 3
High beam indicator light: 12 V, 1.4 W x 1
Turn signal indicator light: 12 V, 1.4 W x 2
Engine trouble warning light: 12 V, 1.4 W x 1
Immobilizer system indicator light: LED
Fuses:Main fuse:30.0 A
Headlight fuse: 15.0 A
Signaling system fuse: 10.0 A
Ignition fuse: 10.0 A
Radiator fan fuse: 7.5 A
Hazard fuse: 10.0 A
ECU fuse: 5.0 A
Backup fuse: 5.0 A
SPECIFICATIONS
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AAcceleration and deceleration ...................5-2
Air filter and V-belt case air filter elements ................................................6-15
Auxiliary light bulb, replacing ...................6-28
BBattery......................................................6-24
Brake fluid level, checking .......................6-20
Brake fluid, changing ...............................6-21
Brake lever, front ......................................3-12
Brake lever, rear .......................................3-12
Brake levers, lubricating ..........................6-21
Braking .......................................................5-3
CCare............................................................7-1
Catalytic converters .................................3-14
Centerstand and sidestand, checking and lubricating .......................................6-22
Coolant.....................................................6-13
Cowling and panel, removing and installing ...................................................6-8
DDimmer switch .........................................3-11
EEngine break-in ..........................................5-4
Engine oil .................................................6-10
Engine trouble warning light ......................3-4
FFinal transmission oil ...............................6-12
Front and rear brake lever free play.........6-18
Front and rear brake pads, checking ......6-19
Front fork, checking .................................6-23
Fuel ..........................................................3-13
Fuel consumption, tips for reducing ..........5-3 Fuel tank cap ...........................................3-12
Fuses, replacing .......................................6-25
HHandlebar switches .................................3-11
Hazard switch ..........................................3-11
Headlight bulb, replacing .........................6-26
High beam indicator light...........................3-4
Horn switch ..............................................3-11
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 ......................3-4
KKey identification number ..........................9-1
LLicense plate light bulb, replacing ...........6-28
MMain switch/steering lock ..........................3-2
Maintenance and lubrication, periodic ......6-4
Maintenance, emission control system .....6-3
Matte color, caution ...................................7-1
Model label ................................................9-2
Multi-function display ................................3-6
PParking .......................................................5-4
Part locations .............................................1-5
Pass switch ..............................................3-11
SSafe-riding points.......................................1-5
Safety information ......................................1-1
Seat ..........................................................3-15
Securing bracket ......................................3-15Shock absorber assemblies, adjusting....3-18
Sidestand .................................................3-18
Spark plug, checking .................................6-9
Specifications.............................................7-3
Speedometer .............................................3-5
Start switch ..............................................3-11
Starting off .................................................5-2
Starting the engine.....................................5-1
Steering, checking ...................................6-23
Storage.......................................................7-3
Storage compartments ............................3-16
TTachometer ................................................3-5
Tail/brake light bulb or rear turn signal
light bulb, replacing ...............................6-27
Throttle cable free play, checking ............6-16
Throttle grip and cable, checking and lubricating ..............................................6-21
Tires .........................................................6-16
Tool kit ........................................................6-2
Troubleshooting .......................................6-29
Troubleshooting charts ............................6-30
Turn signal indicator lights .........................3-4
Turn signal light bulb (front), replacing ................................................6-27
Turn signal switch ....................................3-11
VValve clearance ........................................6-16
Vehicle identification number .....................9-1
WWheel bearings, checking........................6-24
Wheels .....................................................6-18
INDEX
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