Page 18 of 114
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
cCDo not use the parking position for
an extended length of time, other-
wise the battery may discharge.
EAU03734
Oil change indicator light “
7
”
Oil change indicator lightThis indicator light comes on at the
initial 1,000 km and every 3,000 km
thereafter to indicate that the engine
oil should be changed.
If the engine oil is changed before the
oil change indicator comes on (i.e.
before the periodic oil change interval
has been reached), the indicator light
must be reset after the oil change for
the next periodic oil change to be
indicated at the correct time. (See
page 6-17 for the resetting proce-
dure.)
The electrical circuit of the indicator
light can be checked according to the
following procedure.
1. Set the engine stop switch to “#”
and turn the key to “ON”.
2. Check that the indicator comes
on for a few seconds and then
goes off.
3. If the indicator light does not
come on, have a Yamaha dealer
check the electrical circuit.
EAU00056
Indicator lightsIndicator lights
EAU04121
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.
EAU00063
High beam indicator light “&”High beam indicator lightThis indicator light comes on when
the high beam of the headlight is
switched on.
1
2
3
4
1. Left turn signal indicator light “4”
2. High beam indicator light “&”
3. Oil change indicator light “
7
”
4. Right turn signal indicator light “6”
5SJ-28199-E0 1/24/02 6:14 PM Page 17
Page 45 of 114
5-1
EAU00372
OPERATION AND IMPORTANT RIDING POINTS
5
EAU01118
w8Become 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.
8Never 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.
8For safety, always start the
engine with the centerstand
down.
EAU03843
Starting the engineStarting the engine
EC000046
cCSee 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
w8Before starting the engine,
check the function of the igni-
tion circuit cut-off system
according to the procedure
described on page 3-22.
8Never ride with the sidestand
down.
1. Turn the key to “ON” and make
sure that the engine stop switch
is set to “#”.
2. Close the throttle completely.
3. Start the engine by pushing the
start switch while applying the
front or rear brake.
3
2
1
1. Start switch
2. Front brake lever
3. Rear brake lever
5SJ-28199-E0 1/24/02 6:14 PM Page 44
Page 48 of 114
5-4
OPERATION AND IMPORTANT RIDING POINTS
5
EAU03093
Tips for reducing fuel
consumptionFuel consumption, tips for reducingFuel consumption depends largely on
your riding style. Consider the follow-
ing tips to reduce fuel consumption:
8Thoroughly warm up the engine.
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
cCAfter 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
cC8Keep the engine speed below
8,500 r/min.
8If any engine trouble should
occur during the engine break-
in period, immediately have a
Yamaha dealer check the vehi-
cle.
5SJ-28199-E0 1/24/02 6:14 PM Page 47
Page 103 of 114
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