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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
Page 90 of 96

Specifications
8-2
8
Spark plug gap:
0.8–0.9 mm (0.031–0.035 in)
Clutch:
Clutch type:
Dry, centrifugal automatic
Transmission:
Primary reduction ratio:
(1.000)
Final drive:
Gear
Secondary reduction ratio:
41/14 × 44/13 (9.912)
Transmission type:
V-belt automatic
Operation:
Centrifugal automatic type
Chassis:
Frame type:
Underbone
Caster angle:
28.00 °
Trail:
100 mm (3.9 in)
Front tire:
Type:
Tubeless
Size:
120/70-15 M/C 56P(METZELER)-
56S(MICHELIN)
Manufacturer/model:
METZELER / FEELFREE
Manufacturer/model:
MICHELIN / CITYGRIP
Rear tire:
Type:
Tubeless
Size:
140/70-14 M/C 68P(METZELER)-
68S(MICHELIN)
Manufacturer/model:
METZELER / FEELFREE
Manufacturer/model:
MICHELIN / CITYGRIP
Loading:
Maximum load:
181 kg (399 lb) (YP125RA)
185 kg (408 lb) (YP125R)
(Total weight of rider, passenger, cargo
and accessories)
Tire air pressure (measured on cold
tires):
Loading condition:
0–90 kg (0–198 lb)
Front:
190 kPa (1.90 kgf/cm², 28 psi)
Rear:
220 kPa (2.20 kgf/cm², 32 psi)
Loading condition:
90–181 kg (198–399 lb) (YP125RA)
90–185 kg (198–408 lb) (YP125R)
Loading condition:
90 kg - maximum load
Front:
210 kPa (2.10 kgf/cm², 30 psi)
Rear:
250 kPa (2.50 kgf/cm², 36 psi)
Front wheel:
Wheel type:
Cast wheel
Rim size:
15 x MT3.5
Rear wheel:
Wheel type:
Cast wheel
Rim size:
14 x MT3.75
Front brake:
Type:
Single disc brake
Operation:
Right hand operation
Specified brake fluid:
DOT 4
Rear brake:
Type:
Single disc brake
Operation:
Left hand operation
Specified brake fluid:
DOT 4
Front suspension:
Type:
Telescopic fork
Spring/shock absorber type:
Coil spring/oil damper
Wheel travel:
110 mm (4.3 in)
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Page 92 of 96
Consumer information
9-1
9
EAU40793
Identification numbers
Record the vehicle identification num-
ber and model label information in the
spaces provided below for assistance
when ordering spare parts from a
Yamaha dealer or for reference in case
the vehicle is stolen.
VEHICLE IDENTIFICATION NUMBER:
MODEL LABEL INFORMATION:
EAU26411Vehicle identification number
The vehicle identification number is
stamped into the frame.
TIP
The vehicle identification number is
used to identify your vehicle and may
be used to register it with the licensing
authority in your area.
EAU26461Model label
The model label is affixed to the loca-
tion shown. Record the information on
this label in the space provided. This
information will be needed when order-
ing spare parts from a Yamaha dealer.
1. Vehicle identification number
ZAUM0683
1
1. Model label
U2DME2E0.book Page 1 Tuesday, June 30, 2015 11:38 AM