EAU25880
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.
6
PERIODIC MAINTENANCE AND MINOR REPAIR
6-23
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AAcceleration and deceleration ...................5-2
Adjusting the brake lever free play ..........6-15
Adjusting the carburetor ..........................6-12
Adjusting the rear shock absorber
assemblies ...............................................3-8
Air filter and V-belt case air filter
elements ................................................6-11
BBattery......................................................6-18
Battery voltage/fuel gauge .........................3-3
Braking .......................................................5-2
CCare............................................................7-1
Clock ..........................................................3-4
Controls and Instruments ..........................2-3
Coolant.....................................................6-10
Changing the brake fluid..........................6-16
Checking and lubricating the cables .......6-16
Checking and lubricating the centerstand
and sidestand ........................................6-17
Checking the brake fluid level .................6-15
Checking the front and rear brake pads..6-15
Checking the front fork ............................6-17
Checking the spark plug ............................6-6
Checking the steering ..............................6-17
Checking the throttle cable free play.......6-12
Checking the wheel bearings ..................6-18
EEngine oil ...................................................6-7
FFinal gear oil...............................................6-9
Front brake lever ........................................3-5
Front storage compartment .......................3-7Fuel ............................................................3-6
Fuel tank cap .............................................3-6
HHandlebar switches ...................................3-4
IIdentification numbers ...............................9-1
Indicator lights ...........................................3-1
LLeft view .....................................................2-1
MMain switch ................................................3-1
Model label ................................................9-2
OOwner’s tool kit ..........................................6-1
PParking .......................................................5-3
Periodic maintenance and lubrication
chart .........................................................6-2
Pre-operation check list .............................4-2
RRear brake lever .........................................3-6
Removing and installing cowlings and
panels ......................................................6-5
Replacing a front turn signal light bulb....6-21
Replacing the fuse ...................................6-20
Replacing the headlight bulb or a front
turn signal light bulb ..............................6-20
Replacing the license plate light bulb......6-21
Replacing the tail/brake light bulb or a
rear turn signal light bulb.......................6-22
Right view ..................................................2-2
SSeat ............................................................3-7
Sidestand ...................................................3-8Sidestand switch operation check ............3-9
Speedometer unit ......................................3-3
Starting a cold engine ................................5-1
Starting off .................................................5-2
Storage.......................................................7-3
Storage compartment ................................3-7
TTires .........................................................6-13
Troubleshooting .......................................6-23
Troubleshooting chart ..............................6-24
INDEX
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