Page 21 of 96
To lock the steering
1. Push
2. Turn
1. Turn the handlebars all the way to
the left.
2. Push the key in from the “OFF”
position, and then turn it to
“LOCK” while still pushing it.
3. Remove the key.T
o unlock the steering
1. Push
2. Turn
Push the key in, and then turn it to
“OFF” while still pushing it.
EAU10941
(Parking)
The steering is locked, and the tai-
llight, license plate light and auxiliary
lights are on. The hazard lights and
turn signal lights can be turned on,
but all other electrical systems are off.
The key can be removed.
The steering must be locked before
the key can be turned to “ ”.
ECA11020
Do not use the parking position for
an extended length of time, other-
wise the battery may discharge.
NOTICE
INSTRUMENT AND CONTROL FUNCTIONS
3-3
3
Page 30 of 96

EAU12350
Pass switch “ ”
Press this switch to flash the head-
light.
EAU12400
Dimmer switch “ / ”
Set this switch to “ ” for the high
beam and to “ ” for the low beam.
EAU12460
Turn signal switch “ / ”
To signal a right-hand turn, push this
switch to “ ”. To signal a left-hand
turn, push this switch to “ ”. When
released, the switch returns to the
center position. To cancel the turn
signal lights, push the switch in after it
has returned to the center position.
EAU12500
Horn switch “ ”
Press this switch to sound the horn.
EAU12721
Start switch “ ”
With the sidestand up, push this
switch while applying the front or rear
brake to crank the engine with the
starter. See page 5-1 for starting ins-
tructions prior to starting the engine.
EAU44710
The engine trouble warning light and
ABS warning light (ABS model only)
will come on when the key is turned
to “ON” and the start switch is pus-
hed, but this does not indicate a mal-
function.
EAU12733
Hazard switch “ ”
With the key in the “ON” or “ ” posi-
tion, use this switch to turn on the
hazard lights (simultaneous flashing
of all turn signal lights).
The hazard lights are used in case of
an emergency or to warn other drivers
when your vehicle is stopped where it
might be a traffic hazard.
ECA10061
Do not use the hazard lights for an
extended length of time with the
engine not running, otherwise the
battery may discharge.
EAU12900
Front brake lever
1. Front brake lever
The front brake lever is located on the
right handlebar grip. To apply the
front brake, pull this lever toward the
handlebar grip.
NOTICE
INSTRUMENT AND CONTROL FUNCTIONS
3-12
3
Page 47 of 96

Front
RearEAU16820
Tips for reducing fuel
consumption
Fuel consumption depends largely on
your riding style. Consider the follo-
wing tips to reduce fuel consumption:
Avoid high engine speeds during
acceleration.
Avoid high engine speeds with no
load on the engine.
Turn 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 cros-
sings).
EAU16830
Engine break-in
There is never a more important
period in the life of your engine than
the period between 0 and 1000 km
(600 mi). For this reason, you should
read the following material carefully.
Since the engine is brand new, do not
put an excessive load on it for the first
1000 km (600 mi). The various parts in
the engine wear and polish themsel-
ves to the correct operating clearan-
ces. During this period, prolonged
full-throttle operation or any condition
that might result in engine overhea-
ting must be avoided.
EAUS1840
0–500 km (0–300 mi)
Avoid prolonged operation above
5000 r/min.
500–1000 km (300–600 mi)
Avoid prolonged operation above
7500 r/min. NOTICE: After 1000
km (600 mi) of operation, be
sure to replace the engine oil,
final transmission oil and the
oil filter element.
[ECA12931]
OPERATION AND IMPORTANT RIDING POINTS
5-4
5
Page 87 of 96

Dimensions:Overall length:
YP125R 2201 mm (86.7 in)
YP125RA 2201 mm (86.7 in)
YP125R Sport 2201 mm (86.7 in)
YP125RA Business 2290 mm (90.2 in)
Overall width:
776 mm (30.6 in)
Overall height:
YP125R 1337 mm (52.6 in)
YP125RA 1337 mm (52.6 in)
YP125R Sport 1186 mm (46.7 in)
YP125RA Business 1378 mm (54.3 in)
Seat height:
792 mm (31.2 in)
Wheelbase:
1535 mm (60.4 in)
Ground clearance:
135 mm (5.31 in)
Minimum turning radius:
1805 mm (71.1 in)
Weight:With oil and fuel:
YP125R 173 Kg (381 lb)
YP125RA 176 Kg (388 lb)
YP125R Sport 174.5 Kg (385 lb)
YP125RA Business 183.2 Kg (404 lb)
Engine:Engine type:
Liquid cooled 4-stroke, SOHC
Cylinder arrangement:
Forward-inclined single cylinderDisplacement:
124 cm
3
Bore x stroke:
52.0 x 58.6 mm (2.05 x 2.31 in)
Compression ratio:
11.20 :1
Starting system:
Electric starter
Lubrication system:
Wet sump
Engine oil:Recommended brand:
YAMALUBE
Type:
SAE 10W-30, SAE 10W-40, SAE 15W-40,
SAE 20W-40 or SAE 20W-50
Recommended engine oil grade:
API service SG type or higher, JASO stan-
dard MA
Engine oil quantity:Without oil filter element replacement:
1.40 L (1.48 US qt, 1.23 Imp.qt)With oil filter element replacement:
1.50 L (1.59 US qt, 1.32 Imp.qt)
Final transmission oil:Type:
YAMALUBE 10W-40 or SAE 10W-30 type
SE motor oil
Quantity:
0.21 L (0.22 US qt, 0.18 Imp.qt)
Cooling system:Coolant reservoir capacity (up to the maxi-
mum level mark):
0.25 L (0.26 US qt, 0.22 Imp.qt)
Radiator capacity (including all routes):
1.00 L (1.06 US qt, 0.88 Imp.qt)
Air filter:Air filter element:
Oil-coated paper element
Fuel:Recommended fuel:
Regular unleaded gasoline only
Fuel tank capacity:
11.8 L (3.12 US gal, 2.60 Imp.gal)
Fuel reserve amount:
2.0 L (0.53 US gal, 0.44 Imp.gal)
Spark plug(s):Manufacturer/model:
NGK/CPR9EA-9
-20 -10 0
10 20 30
40
50 ˚C
SAE 10W-30
SAE 15W-40
SAE 20W-40
SAE 20W-50
SAE 10W-40
SAE 10W-50
SPECIFICATIONS
8-1
8