Page 19 of 116
3-2
INSTRUMENT AND CONTROL FUNCTIONS
3
EAU03733
.(Parking)
The steering is locked, and the tail-
light, license light and auxiliary light
are on, but all other electrical sys-
tems are off. The key can be
removed.
To turn the main switch to “
.”:
1. Turn the key to “LOCK”.
2. Slightly turn the key counter-
clockwise until it stops.
3. While still turning the key coun-
terclockwise, push it in until it
snaps into place.
ECA00043
cC
Do not use the parking position for
an extended length of time, other-
wise the battery may discharge.
EAU04901
ABS warning light “”ABS warning lightECA00019
cC
If the ABS warning light comes on
or flashes while riding, the ABS
may be defective. If this occurs,
have a Yamaha dealer check the
electrical circuit.
See page 3-13 for an explanation of
the ABS.
The electrical circuit of the warning
light can be checked by setting the
engine stop switch to “#” and turning
the key to “ON”.
The warning light should come on for
a few seconds, and then go off. If the
warning light does not come on or
remains on, have a Yamaha dealer
check the electrical circuit.
EAU03034
Indicator and warning lightsIndicator and warning lightsEAU04121
Turn signal indicator lights “4”
and “6”
Turn signal indicator lightsThe corresponding indicator light
flashes when the turn signal switch is
pushed to the left or right.
13
45
2
1. Left turn signal indicator light “4”
2. ABS warning light “”
3. High beam indicator light “&”
4. Oil change indicator light “
7”
5. Right turn signal indicator light “6”
5SJ-28199-E1 7/11/02 11:03 AM Page 17
Page 46 of 116
3
2
1
1. Start switch
2. Front brake lever
3. Rear brake lever
5-1
EAU00372
OPERATION AND IMPORTANT RIDING POINTS
5
EAU01118
w
8 8
Become thoroughly familiar
with all operating controls and
their functions before riding.
Consult a Yamaha dealer
regarding any control or func-
tion that you do not thorough-
ly understand.
8 8
Never start the engine or oper-
ate it in a closed area for any
length of time. Exhaust fumes
are poisonous, and inhaling
them can cause loss of con-
sciousness and death within a
short time. Always make sure
that there is adequate ventila-
tion.
8 8
For safety, always start the
engine with the centerstand
down.
EAU03616*
Starting the engineStarting the engineEC000046
cC
See page 5-4 for engine break-in
instructions prior to operating the
vehicle for the first time.
In order for the ignition circuit cut-off
system to enable starting, the side-
stand must be up.
EW000054
w
8 8
Before starting the engine,
check the function of the igni-
tion circuit cut-off system
according to the procedure
described on page 3-23.
8 8
Never ride with the sidestand
down.
1. Turn the key to “ON” and make
sure that the engine stop switch
is set to “#”.
ECA00068
cC
When the key is turned to “ON”,
the ABS warning light should
come on for a few seconds, and
then go off. If the ABS warning
light does not come on or remains
on, have a Yamaha dealer inspect
the electrical circuit.
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Page 49 of 116
5-4
OPERATION AND IMPORTANT RIDING POINTS
5
EAU04755
Tips for reducing fuel
consumption
Fuel consumption, tips for reducingFuel consumption depends largely on
your riding style. Consider the follow-
ing tips to reduce fuel consumption:
8Avoid high engine speeds during
acceleration.
8Avoid high engine speeds with
no load on the engine.
8Turn the engine off instead of let-
ting it idle for an extended length
of time (e.g., in traffic jams, at
traffic lights or at railroad cross-
ings).
EAU01128
Engine break-inEngine break-inThere is never a more important peri-
od in the life of your engine than the
period between 0 and 1,600 km. For
this reason, you should read the fol-
lowing material carefully.
Since the engine is brand new, do
not put an excessive load on it for the
first 1,600 km. The various parts in
the engine wear and polish them-
selves to the correct operating clear-
ances. During this period, prolonged
full-throttle operation or any condition
that might result in engine overheat-
ing must be avoided.
EAU04590
0–1,000 km
Avoid prolonged operation above
4,000 r/min.
1,000–1,600 km
Avoid prolonged operation above
5,000 r/min.
ECA00138
cC
After 1,000 km of operation, be
sure to replace the engine oil and
final transmission oil.
1,600 km and beyond
The vehicle can now be operated
normally.
ECA00137
cC
8
8
Keep the engine speed below
8,500 r/min.
8 8
If any engine trouble should
occur during the engine break-
in period, immediately have a
Yamaha dealer check the vehi-
cle.
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Page 104 of 116
8-1
EAU01038
SPECIFICATIONS
8
SpecificationsSpecificationsModel YP250A
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)177 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
cC
Do not use oils with a diesel specification of “CD” or oils of a
higher quality than specified. In addition, do not use oils
labeled “ENERGY CONSERVING II” or higher.
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
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