Page 17 of 96

Instrument and control functions
3-3
3
WARNING
EWA10062
Never turn the key to “OFF” or
“LOCK” while the vehicle is moving.
Otherwise the electrical systems will
be switched off, which may result in
loss of control or an accident.
EAU10686LOCK
The steering is locked and all electrical
systems are off. The key can be re-
moved.
To lock the steering
1. Turn the handlebars all the way to
the left.
2. With the key in the “OFF” position,
push the key in and turn it to
“LOCK”.
3. Remove the key.
TIP
If the steering will not lock, try turning
the handlebars back to the right slight-
ly.
To unlock the steering
1. Insert the key.
2.
tion, push the key in and turn it to
EAU59680 (Parking)
The hazard lights and turn signal lights
can be turned on, but all other electri-
cal systems are off. The key can be re-
moved.
The steering must be locked before the
key can be turned to “ ”.
NOTICE
ECA20760
Using the hazard or turn signal lights
for an extended length of time may
cause the battery to discharge.
U2DME2E0.book Page 3 Tuesday, June 30, 2015 11:38 AM
Page 29 of 96
Instrument and control functions
3-15
3
NOTICE
ECA10062
Do not use the hazard lights for an
extended length of time with the en-
gine not running, otherwise the bat-
tery may discharge.
EAUM3720Trip/info switch “TRIP/INFO”
This switch is used to make setting and
display changes in the multi-function
meter unit. See page 3-6 for more in-
formation.
EAU12902
Front brake lever
The front brake lever is located on the
right side of the handlebar. To apply
the front brake, pull this lever toward
the throttle grip.
1. Front brake lever
U2DME2E0.book Page 15 Tuesday, June 30, 2015 11:38 AM
Page 46 of 96

Operation and important riding points
5-5
5
EAU16821
Tips for reducing fuel con-
sumption
Fuel consumption depends largely on
your riding style. Consider the follow-
ing 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 traf-
fic lights or at railroad crossings).
EAU16831
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 fol-
lowing 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 themselves
to the correct operating clearances.
During this period, prolonged full-throt-
tle operation or any condition that
might result in engine overheating
must be avoided.
EAUS1841
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.
[ECA12932]
1000 km (600 mi) and beyond
The vehicle can now be operated nor-
mally.
NOTICE
ECA10311
Keep the engine speed out of
the tachometer red zone.
If any engine trouble should oc-
cur during the engine break-in
period, immediately have a
Yamaha dealer check the vehi-
cle.
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Page 89 of 96

Specifications
8-1
8
Dimensions:
Overall length:
2160 mm (85.0 in)
Overall width:
790 mm (31.1 in)
Overall height:
1385 mm (54.5 in)
Seat height:
785 mm (30.9 in)
Wheelbase:
1525 mm (60.0 in)
Ground clearance:
125 mm (4.92 in)
Minimum turning radius:
2500 mm (98.4 in)
Weight:
Curb weight:
169 kg (373 lb) (YP125R)
173 kg (381 lb) (YP125RA)
Engine:
Engine type:
Liquid cooled 4-stroke, SOHC
Cylinder arrangement:
Single cylinder
Displacement:
124 cm³
Bore × stroke:
52.0 × 58.6 mm (2.05 × 2.31 in)
Compression ratio:
11.2 : 1
Starting system:
Electric starter
Lubrication system:
Wet sump
Engine oil:
Recommended brand:
YAMALUBE
Type:
SAE 10W-30, 10W-40, 15W-40, 20W-40 or
20W-50Recommended engine oil grade:
API service SG type or higher, JASO
standard 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)
Coolant quantity:
Coolant reservoir (up to the maximum level
mark):
0.32 L (0.34 US qt, 0.28 Imp.qt)
Radiator (including all routes):
1.10 L (1.16 US qt, 0.97 Imp.qt)
Air filter:
Air filter element:
Oil-coated paper element
Fuel:
Recommended fuel:
Premium unleaded gasoline (Gasohol (E10)
acceptable)
Fuel tank capacity:
13.2 L (3.48 US gal, 2.90 Imp.gal)
Fuel reserve amount:
2.5 L (0.66 US gal, 0.55 Imp.gal)
Fuel injection:
Throttle body:
ID mark:
1B91 00
Spark plug(s):
Manufacturer/model:
NGK/CPR9EA-9
–20 –10 0
1020 30 40 50 C 10 30 50 70 90 110 0 130 F
SAE 10W-30
SAE 15W-40
SAE 20W-40
SAE 20W-50
SAE 10W-40
SAE 10W-50
U2DME2E0.book Page 1 Tuesday, June 30, 2015 11:38 AM