2002 YAMAHA MAJESTY 250 engine

7-4
SCOOTER CARE AND STORAGE
7
StorageStorageShort-term
Always store your scooter in a cool,
dry place and, if necessary, protect it
against dust with a porous cover.
ECA00015
cC8Storing 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.
8To 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 sever-
al months:
1. Follow all the instructions in the
“Care” section of this chapter.
2. Drain the carburetor float cham-
ber by loosening the drain bolt;
this will prevent fuel deposits
from building up. Pour the
drained fuel into the fuel tank.
3. Fill up the fuel tank and add fuel
stabilizer (if available) to prevent
the fuel tank from rusting and the
fuel from deteriorating.
4. Perform the following steps to
protect 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.
EWA00003
wTo prevent damage or injury from
sparking, make sure to ground the
spark plug electrodes while turn-
ing the engine over.
5SJ-28199-E0 1/24/02 6:14 PM Page 99

8-1
EAU01038
SPECIFICATIONS
8
SpecificationsSpecifications
Model YP250
Dimensions
Overall length 2,145 mm
Overall width 770 mm
Overall height 1,350 mm
Seat height 730 mm
Wheelbase 1,535 mm
Ground clearance 120 mm
Minimum turning radius 2,700 mm
Basic weight (with oil and full
fuel tank)170 kg
Engine
Engine type Liquid-cooled 4-stroke, SOHC
Cylinder arrangement Forward inclined single
cylinder
Displacement 249 cm
3
Bore ×Stroke 69.0 ×66.8 mm
Compression ratio 10:1
Starting system Electric starter
Lubrication system Wet sumpEngine oil
Type
Recommended engine oil
classification API Service SE, SF, SG type
or higher
cCBe sure to use motor oils that do not contain anti-friction
modifiers. Passenger car motor oils (often labeled “ENERGY
CONSERVING
II”) contain anti-friction additives which will
cause clutch and/or starter clutch slippage, resulting in
reduced component life and poor engine performance.
Quantity
Periodic oil change 1.2 L
Total amount (dry engine) 1.4 L
–10° 0° 10° 20° 30°
40°
SAE 10W/30
SAE 10W/40
SAE 20W/40
SAE 20W/50
–20°
SAE 15W/40 50°C
5SJ-28199-E0 1/24/02 6:14 PM Page 102

8-2
SPECIFICATIONS
8
Final gear case oil
Type Engine oil SAE 10W-30
(API SE)
Total amount 0.25 L
Radiator capacity
(including all routes)1.4 L
Air filterWet type element
Fuel
Type REGULAR UNLEADED
GASOLINE ONLY
Fuel tank capacity 12 L
Carburetor
Manufacturer TEIKEI
Model × quantity Y28V-1E × 1
Spark plug
Manufacturer/model NGK/DR8EA
Spark plug gap 0.6–0.7 mm
Clutch typeDry, centrifugal automatic
Transmission
Primary reduction system Helical gear
Primary reduction ratio 40/15 (2.666)
Secondary reduction system Helical gear
Secondary reduction ratio 38/15 (2.533)Transmission type V-belt automatic
Operation Centrifugal automatic type
Chassis
Frame type Steel tube underbone
Caster angle 28°
Trail 103 mm
Tires
Front
Type Tubeless
Size 110/90-12 64L
Manufacturer/ IRC/MB67
model MICHELIN/BOPPER
Rear
Type Tubeless
Size 130/70-12 62L
Manufacturer/ IRC/MB67
model MICHELIN/BOPPER
Maximum load* 185 kg
Air pressure (cold tire)
up to 90 kg load*
Front175 kPa (1.75 kgf/cm
2, 1.75 bar)
Rear200 kPa (2.00 kgf/cm2, 2.00 bar)
5SJ-28199-E0 1/24/02 6:14 PM Page 103

INDEX
F
Final transmission oil ............................6-18
Front and rear brake lever free play,
adjusting ............................................6-27
Front fork, checking ..............................6-32
Fuel ......................................................3-14
Fuel consumption, tips for reducing .......5-4
Fuel gauge .............................................3-4
Fuel tank cap ........................................3-13
Fuses, replacing ...................................6-36
H
Handlebar switches ..............................3-10
Dimmer switch ...................................3-10
Engine stop switch .............................3-12
Headlight variations ...........................3-11
Horn switch ........................................3-10
Pass switch ........................................3-10
Start switch ........................................3-12
Turn signal switch ..............................3-10
Headlight bulb, replacing ......................6-37
I
Identification numbers ............................9-1
Ignition circuit cut-off system ................3-21
Indicator lights ........................................3-2
High beam indicator light .....................3-2
Oil change indicator light .....................3-2
Turn signal indicator lights ...................3-2
K
Key identification number .......................9-1
L
License plate light bulb, replacing ........6-41
M
Main switch/steering lock .......................3-1
Model label .............................................9-2
P
Parking ...................................................5-5
Part locations ..........................................2-1
Periodic maintenance and lubrication
chart .....................................................6-3
Pre-operation check list ..........................4-1
R
Rider seat .............................................3-16
Rider seat, adjusting .............................3-17
S
Safe-riding points ...................................1-2
Shock absorber assemblies,
adjusting ............................................3-19
Sidestand .............................................3-20
Spark plug, checking ............................6-12
Specifications .........................................8-1
Speedometer ..........................................3-3
Starting off ..............................................5-2
Starting the engine .................................5-1
Steering, checking ................................6-33
Storage ...................................................7-4
Storage compartments .........................3-17
A
Acceleration and deceleration ................5-3
Air filter and V-belt case air filter
elements, cleaning .............................6-21
Air flow louver .......................................6-23
Anti-theft alarm (optional) .......................3-9
B
Battery ..................................................6-34
Battery cover removal ..........................6-34
Brake fluid level, checking ....................6-29
Brake fluid, changing ............................6-30
Brake lever, front ..................................3-12
Brake lever, rear ...................................3-13
Brake levers, lubricating .......................6-31
Braking ...................................................5-3
C
Cables, checking and lubricating ..........6-30
Care ........................................................7-1
Catalytic converter ................................3-15
Centerstand and sidestand, checking
and lubricating ...................................6-31
Conversion table ....................................8-5
Coolant .................................................6-19
Coolant temperature gauge ....................3-5
Cowlings and panel, removing and
installing ...............................................6-6
E
Engine break-in ......................................5-4
Engine oil ..............................................6-14
5SJ-28199-E0 1/24/02 6:14 PM Page 110