catalytic converter YAMAHA VITY 125 2008 Owners Manual

TABLE OF CONTENTSSAFETY INFORMATION ..................1-1
Further safe-riding points ................1-4
DESCRIPTION ..................................2-1
Left view ..........................................2-1
Right view ........................................2-2
Controls and instruments.................2-3
INSTRUMENT AND CONTROL
FUNCTIONS.......................................3-1
Main switch/steering lock ................3-1
Keyhole cover .................................3-2
Indicator, indicator lights and
warning light ................................3-2
Speedometer unit ...........................3-3
Self-diagnosis device ......................3-4
Fuel gauge ......................................3-4
Anti-theft alarm (optional) ...............3-4
Handlebar switches ........................3-5
Front brake lever ............................3-5
Rear brake lever .............................3-6
Fuel tank cap ..................................3-6
Fuel .................................................3-7
Catalytic converters ........................3-8
Seat ................................................3-8
Helmet holders ...............................3-9
Storage compartments ...................3-9
Carrier ...........................................3-10
Luggage hook ...............................3-11
Sidestand ......................................3-11
Ignition circuit cut-off system ........3-12PRE-OPERATION CHECKS............. 4-1
Pre-operation check list .................. 4-2
OPERATION AND IMPORTANT
RIDING POINTS................................. 5-1
Starting the engine ......................... 5-1
Starting off ...................................... 5-2
Acceleration and deceleration ........ 5-3
Braking ........................................... 5-3
Tips for reducing fuel
consumption ............................... 5-4
Engine break-in .............................. 5-4
Parking ........................................... 5-5
PERIODIC MAINTENANCE AND
MINOR REPAIR................................. 6-1
Periodic maintenance and
lubrication chart .......................... 6-2
Removing and installing cowlings
and panels .................................. 6-6
Checking the spark plug ................. 6-8
Engine oil ....................................... 6-9
Final transmission oil .................... 6-11
Air filter and V-belt case air filter
elements ................................... 6-12
Checking the throttle cable free
play ........................................... 6-15
Valve clearance ............................ 6-15
Tires ............................................. 6-15
Cast wheels .................................. 6-17Checking the front brake lever
free play .................................... 6-17
Adjusting the rear brake lever
free play .................................... 6-18
Checking the front brake pads
and rear brake shoes ............... 6-18
Checking the front brake fluid
level .......................................... 6-19
Changing the brake fluid .............. 6-20
Checking and lubricating the
cables ....................................... 6-20
Checking and lubricating the
throttle grip and cable ............... 6-21
Lubricating the front and rear
brake levers .............................. 6-21
Checking and lubricating the
centerstand and sidestand ....... 6-22
Checking the front fork ................. 6-22
Checking the steering .................. 6-23
Checking the wheel bearings ....... 6-23
Battery ......................................... 6-23
Replacing the fuse ....................... 6-25
Replacing the headlight bulb ....... 6-25
Replacing a front turn signal
light bulb ................................... 6-26
Rear turn signal light and
tail/brake light ........................... 6-27
Replacing the auxiliary light
bulb ........................................... 6-27
Troubleshooting ........................... 6-28
Troubleshooting chart .................. 6-29U4P7E1E0.book Page 1 Wednesday, December 12, 2007 9:37 AM

INSTRUMENT AND CONTROL FUNCTIONS
3-8
3
EAU13443
Catalytic converters This vehicle is equipped with catalytic
converters in the exhaust system.
WARNING
EWA10860
The exhaust system is hot after op-
eration. Make sure that the exhaust
system has cooled down before do-ing any maintenance work.CAUTION:
ECA16490
The following precautions must be
observed to prevent a fire hazard or
other damages.

Use only unleaded gasoline.
The use of leaded gasoline will
cause unrepairable damage to
the catalytic converters.


Never park the vehicle near pos-
sible fire hazards such as grass
or other materials that easily
burn.


Do not allow the engine to idletoo long.
EAUT1502
Seat To open the seat
1. Place the scooter on the center-
stand.
2. Insert the key into the main switch,
and then turn it counterclockwise
to the first “OPEN” position. If the
main switch is in the “LOCK” posi-
tion, turn the key counterclockwise
to the second “OPEN” position.NOTE:Do not push inward when turning the
key from “OFF” to “OPEN” or from“LOCK” to “OPEN”.
3. Fold the seat up.To close the seat
1. Fold the seat down, and then push
it down to lock it in place.
2. Remove the key from the main
switch if the scooter will be left un-
attended.
NOTE:Make sure that the seat is properly se-cured before riding.
1. Seat open position
ON
OPEN
OPENP
U
S
HLOCKOFF
ON
OPEN
OPENP
U
S
HLOCKOFF
1
1
U4P7E1E0.book Page 8 Wednesday, December 12, 2007 9:37 AM

INDEXAAcceleration and deceleration................. 5-3
Air filter and V-belt case air filter
elements ............................................. 6-12
Anti-theft alarm (optional)........................ 3-4
Auxiliary light bulb, replacing ................ 6-27BBattery................................................... 6-23
Brake fluid, changing ............................ 6-20
Brake fluid level, checking .................... 6-19
Brake lever, front..................................... 3-5
Brake lever, rear ..................................... 3-6
Brake levers, lubricating........................ 6-21
Brake pads and shoes, checking .......... 6-18
Braking .................................................... 5-3CCables, checking and lubricating .......... 6-20
Care ........................................................ 7-1
Carrier ................................................... 3-10
Catalytic converters ................................ 3-8
Centerstand and sidestand,
checking and lubricating ..................... 6-22
Cowlings and panels,
removing and installing ......................... 6-6DDimmer switch ........................................ 3-5EEngine break-in ....................................... 5-4
Engine oil ................................................ 6-9
Engine trouble warning light.................... 3-3FFinal transmission oil ............................ 6-11
Front brake lever free play, checking .... 6-17
Front fork, checking .............................. 6-22Fuel......................................................... 3-7
Fuel consumption, tips for reducing........ 5-4
Fuel gauge.............................................. 3-4
Fuel tank cap .......................................... 3-6
Fuse, replacing ..................................... 6-25
HHandlebar switches ................................ 3-5
Headlight bulb, replacing ...................... 6-25
Helmet holders ....................................... 3-9
High beam indicator light ........................ 3-2
Horn switch ............................................. 3-5IIdentification numbers ............................ 9-1
Ignition circuit cut-off system ................ 3-12
Indicator, indicator lights and
warning light ......................................... 3-2KKeyhole cover ......................................... 3-2
Key identification number ....................... 9-1LLuggage hook ....................................... 3-11MMain switch/steering lock........................ 3-1
Matte color, caution ................................ 7-1
Model label ............................................. 9-2PParking ................................................... 5-5
Part locations .......................................... 2-1
Periodic maintenance and lubrication
chart ..................................................... 6-2
Pre-operation check list .......................... 4-2RRear brake lever free play, adjusting .... 6-18Rear turn signal light and tail/brake
light ..................................................... 6-27
SSafe-riding points .................................... 1-4
Safety information ................................... 1-1
Seat ......................................................... 3-8
Self-diagnosis device .............................. 3-4
Sidestand .............................................. 3-11
Spark plug, checking ............................... 6-8
Specifications .......................................... 8-1
Speedometer unit .................................... 3-3
Starting off ............................................... 5-2
Starting the engine .................................. 5-1
Start switch.............................................. 3-5
Steering, checking................................. 6-23
Storage.................................................... 7-3
Storage compartments ............................ 3-9TThrottle cable free play, checking ......... 6-15
Throttle grip and cable,
checking and lubricating ..................... 6-21
Tires ...................................................... 6-15
Troubleshooting .................................... 6-28
Troubleshooting chart ........................... 6-29
Turn signal indicator light ........................ 3-2
Turn signal light bulb (front),
replacing ............................................. 6-26
Turn signal switch ................................... 3-5VValve clearance..................................... 6-15
Vehicle identification number .................. 9-1WWheel bearings, checking ..................... 6-23
Wheels .................................................. 6-17
U4P7E1E0.book Page 1 Wednesday, December 12, 2007 9:37 AM