engine YAMAHA VITY 125 2010 Owner's Guide

SCOOTER CARE AND STORAGE
7-4
7 3. Perform the following steps to pro-
tect 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 spark-
ing 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 elec-
trodes while turning the en-
gine over.
[EWA10951]
4. Lubricate all control cables and the
pivoting points of all levers and
pedals as well as of the side-
stand/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. Alterna-
tively, turn the wheels a little every
month in order to prevent the tires
from becoming degraded 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 ex-
cessively cold or warm place [less
than 0 °C (30 °F) or more than 30
°C (90 °F)]. For more information
on storing the battery, see page
6-23.
TIPMake any necessary repairs before
storing the scooter.
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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
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SPECIFICATIONS
8-3
8
Turn signal indicator light:
12 V, 1.7 W × 1
Engine trouble warning light:
12 V, 1.7 W × 1Fuses:Main fuse:
15.0 A
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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
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