2010 YAMAHA VITY 125 fuel cap

TABLE OF CONTENTSSAFETY INFORMATION ..................1-1
Further safe-riding points ................1-5
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 .................3-10
Carrier ...........................................3-11
Luggage hook ...............................3-11
Sidestand ......................................3-11
Ignition circuit cut-off system ........3-12FOR YOUR SAFETY –
PRE-OPERATION CHECKS............. 4-1
OPERATION AND IMPORTANT
RIDING POINTS................................. 5-1
Starting the engine ......................... 5-1
Starting off ...................................... 5-2
Acceleration and deceleration ........ 5-2
Braking ........................................... 5-3
Tips for reducing fuel
consumption ............................... 5-3
Engine break-in .............................. 5-4
Parking ........................................... 5-4
PERIODIC MAINTENANCE AND
ADJUSTMENT................................... 6-1
Periodic maintenance chart for
the emission control system ....... 6-2
General maintenance and
lubrication chart .......................... 6-3
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 ........................................... 6-14
Valve clearance ............................ 6-15
Tires ............................................. 6-15Cast wheels ................................. 6-17
Checking the front brake lever
free play .................................... 6-17
Adjusting the rear brake lever
free play .................................... 6-17
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 ......... 6-20
Lubricating the front and rear
brake levers .............................. 6-21
Checking and lubricating the
centerstand and sidestand ....... 6-21
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 ........................... 6-28U4P7E2E0.book Page 1 Thursday, August 20, 2009 9:44 AM

DESCRIPTION
2-2
2
EAU10420
Right view
1
3
2
4
5
9
8
7
6
1. Carrier (page 3-11)
2. Grab bar (page 5-2)
3. Fuel tank cap (page 3-6)
4. Rear storage compartment (page 3-10)
5. Helmet holder (page 3-9)
6. Front storage compartment (page 3-10)
7. Luggage hook (page 3-11)
8. Spark plug (page 6-8)9. Engine oil filler cap (page 6-9)U4P7E2E0.book Page 2 Thursday, August 20, 2009 9:44 AM

INSTRUMENT AND CONTROL FUNCTIONS
3-6
3
EAU12950
Rear brake lever The rear brake lever is located on the
left handlebar grip. To apply the rear
brake, pull this lever toward the handle-
bar grip.
EAU45391
Fuel tank cap To remove the fuel tank cap
1. Open the seat. (See page 3-8.)
2. Open the fuel tank cap lid.
3. Turn the fuel tank cap counter-
clockwise and pull it off.
To install the fuel tank cap
1. Insert the fuel tank cap into the
tank opening and turn it clockwise
until the“” marks on the cap
and tank are aligned.
2. Close the fuel tank cap lid.
3. Close the seat.
WARNING
EWA11091
Make sure that the fuel tank cap is
properly closed after filling fuel.
Leaking fuel is a fire hazard.
1. Rear brake lever
1
1. Fuel tank cap lid
2. Fuel tank cap
2
1
U4P7E2E0.book Page 6 Thursday, August 20, 2009 9:44 AM

INSTRUMENT AND CONTROL FUNCTIONS
3-7
3
EAU13221
Fuel Make sure there is sufficient gasoline in
the tank.
WARNING
EWA10881
Gasoline and gasoline vapors are
extremely flammable. To avoid fires
and explosions and to reduce the
risk of injury when refueling, follow
these instructions.1. Before refueling, turn off the en-
gine and be sure that no one is sit-
ting on the vehicle. Never refuel
while smoking, or while in the vi-
cinity of sparks, open flames, or
other sources of ignition such as
the pilot lights of water heaters and
clothes dryers.
2. Do not overfill the fuel tank. When
refueling, be sure to insert the
pump nozzle into the fuel tank filler
hole. Stop filling when the fuel
reaches the bottom of the filler
tube. Because fuel expands when
it heats up, heat from the engine or
the sun can cause fuel to spill out
of the fuel tank.3. Wipe up any spilled fuel immedi-
ately. NOTICE: Immediately wipe
off spilled fuel with a clean, dry,
soft cloth, since fuel may deteri-
orate painted surfaces or plastic
parts.
[ECA10071]
4. Be sure to securely close the fuel
tank cap.
WARNING
EWA15151
Gasoline is poisonous and can
cause injury or death. Handle gaso-
line with care. Never siphon gaso-
line by mouth. If you should swallow
some gasoline or inhale a lot of gas-
oline vapor, or get some gasoline in
your eyes, see your doctor immedi-ately. If gasoline spills on your skin,
wash with soap and water. If gaso-
line spills on your clothing, change
your clothes.
EAU33520
NOTICE
ECA11400
Use only unleaded gasoline. The use
of leaded gasoline will cause severe
damage to internal engine parts,
such as the valves and piston rings,
as well as to the exhaust system.Your Yamaha engine has been de-
signed to use regular unleaded gaso-
line with a research octane number of
91 or higher. If knocking (or pinging) oc-
curs, use a gasoline of a different brand
or premium unleaded fuel. Use of un-
leaded fuel will extend spark plug life
and reduce maintenance costs.
1. Fuel tank filler tube
2. Maximum fuel level
2 1
Recommended fuel:
REGULAR UNLEADED GASO-
LINE ONLY
Fuel tank capacity:
5.5 L (1.45 US gal, 1.21 Imp.gal)
U4P7E2E0.book Page 7 Thursday, August 20, 2009 9:44 AM

SPECIFICATIONS
8-1
8
Dimensions:Overall length:
1860 mm (73.2 in)
Overall width:
670 mm (26.4 in)
Overall height:
1045 mm (41.1 in)
Seat height:
730 mm (28.7 in)
Wheelbase:
1250 mm (49.2 in)
Ground clearance:
95 mm (3.74 in)
Minimum turning radius:
1900 mm (74.8 in)Weight:With oil and fuel:
110.0 kg (243 lb)Engine:Engine type:
Air cooled 4-stroke, SOHC
Cylinder arrangement:
Forward-inclined single cylinder
Displacement:
125 cm³
Bore × stroke:
51.5 × 60.0 mm (2.03 × 2.36 in)
Compression ratio:
9.50 :1
Starting system:
Electric starter
Lubrication system:
Wet sump
Engine oil:Recommended brand:
YAMALUBE
Type:
SAE 10W-30, 10W-40, 10W-50, 15W-40,
20W-40 or 20W-50
Recommended engine oil grade:
API service SG type or higher, JASO
standard MA
Engine oil quantity:
Periodic oil change:
1.00 L (1.06 US qt, 0.88 Imp.qt)Final transmission oil:Type:
SAE 85W-140(GL5)
Quantity:
0.13 L (0.14 US qt, 0.11 Imp.qt)Air filter:Air filter element:
Oil-coated paper element
Fuel:Recommended fuel:
Regular unleaded gasoline only
Fuel tank capacity:
5.5 L (1.45 US gal, 1.21 Imp.gal)Fuel injection:Throttle body:
ID mark:
4P72 00Spark plug (s):Manufacturer/model:
NGK/CR7E
Spark plug gap:
0.7–0.8 mm (0.028–0.031 in)Clutch:Clutch type:
Dry, centrifugal automaticTransmission:Primary reduction system:
Helical gear
Primary reduction ratio:
40/15 (2.667)
Secondary reduction system:
Spur gear
Secondary reduction ratio:
38/13 (2.923)
Transmission type:
V-belt automatic
Operation:
Centrifugal automatic typeChassis:Frame type:
Steel tube backbone
-20 -10 0
10 20 30
40
50 ˚C
SAE 10W-30
SAE 15W-40SAE 20W-40SAE 20W-50
SAE 10W-40SAE 10W-50
U4P7E2E0.book Page 1 Thursday, August 20, 2009 9:44 AM

INDEXAAcceleration and deceleration................. 5-2
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 ................................................... 3-11
Catalytic converters ................................ 3-8
Centerstand and sidestand,
checking and lubricating ..................... 6-21
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........ 5-3
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 ......................................... 3-2LLuggage hook ....................................... 3-11MMain switch/steering lock........................ 3-1
Maintenance and lubrication, periodic .... 6-3
Maintenance, emission control system... 6-2
Matte color, caution ................................ 7-1
Model label ............................................. 9-1PParking ................................................... 5-4
Part locations .......................................... 2-1RRear brake lever free play, adjusting .... 6-17
Rear turn signal light and tail/brake
light..................................................... 6-27
SSafe-riding points .................................... 1-5
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 .......................... 3-10TThrottle cable free play, checking ......... 6-14
Throttle grip and cable,
checking and lubricating ..................... 6-20
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
U4P7E2E0.book Page 1 Thursday, August 20, 2009 9:44 AM