Yamaha YZF-R125 Owners Manual: Specifications

Dimensions:

Overall length:

2015 mm (79.3 in)

Overall width:

660 mm (26.0 in)

Overall height:

1065 mm (41.9 in)

Seat height:

818 mm (32.2 in)

Wheelbase:

1355 mm (53.3 in)

Ground clearance:

155 mm (6.10 in)

Minimum turning radius:

3100 mm (122.0 in)

Weight:

With oil and fuel:

138.0 kg (304 lb)

Engine:

Engine type:

Liquid cooled 4-stroke, SOHC

Cylinder arrangement:

Forward-inclined single cylinder

Displacement:

124 cm³

Bore × stroke:

52.0 × 58.6 mm (2.05 × 2.31 in)

Compression ratio:

11.20 :1

Starting system:

Electric starter

Lubrication system:

Wet sump

Engine oil:

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 standard MA

Engine oil quantity:

Without oil filter element replacement:

0.95 L (1.00 US qt, 0.84 Imp.qt)

With oil filter element replacement:

1.00 L (1.06 US qt, 0.88 Imp.qt)

Cooling system:

Coolant reservoir capacity (up to the maximum 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:

Dry element

Fuel:

Recommended fuel:

Premium unleaded gasoline only

Fuel tank capacity:

13.8 L (3.65 US gal, 3.04 Imp.gal)

Fuel reserve amount:

1.6 L (0.42 US gal, 0.35 Imp.gal)

Fuel injection:

Throttle body:

ID mark:

5D71 00

Spark plug (s):

Manufacturer/model:

NGK/CR8E

Spark plug gap:

0.7-0.8 mm (0.028-0.031 in)

Clutch:

Clutch type:

Wet, multiple-disc

Transmission:

Primary reduction system:

Helical gear

Primary reduction ratio:

73/24 (3.042)

Secondary reduction system:

Chain drive

Secondary reduction ratio:

48/14 (3.429)

Transmission type:

Constant mesh 6-speed

Operation:

Left foot operation

Gear ratio:

1st:

34/12 (2.833)

2nd:

30/16 (1.875)

3rd:

30/22 (1.364)

4th:

24/21 (1.143)

5th:

22/23 (0.957)

6th:

21/25 (0.840)

Chassis:

Frame type:

Semi double cradle

Caster angle:

24.20

Trail:

86.1 mm (3.39 in)

Front tire:

Type:

Tubeless

Size:

100/80-17 M/C 52H

Manufacturer/model:

PIRELLI/SPORT DEMON

Manufacturer/model:

MICHELIN/PILOT SPORTY

Rear tire:

Type:

Tubeless

Size:

130/70-17 M/C 62H

Manufacturer/model:

PIRELLI/SPORT DEMON

Manufacturer/model:

MICHELIN/PILOT SPORTY

Loading:

Maximum load:

185 kg (408 lb)

(Total weight of rider, passenger, cargo and accessories)

Tire air pressure (measured on cold tires):

Loading condition:

0-90 kg (0-198 lb)

Front:

175 kPa (1.75 kgf/cm², 25 psi)

Rear:

200 kPa (2.00 kgf/cm², 29 psi)

Loading condition:

90-185 kg (198-408 lb)

Front:

175 kPa (1.75 kgf/cm², 25 psi)

Rear:

225 kPa (2.25 kgf/cm², 33 psi)

Front wheel:

Wheel type:

Cast wheel

Rim size:

17xMT2.75

Rear wheel:

Wheel type:

Cast wheel

Rim size:

17 x MT3.75

Front brake:

Type:

Single disc brake

Operation:

Right hand operation

Recommended fluid:

DOT 4

Rear brake:

Type:

Single disc brake

Operation:

Right foot operation

Recommended fluid:

DOT 4

Front suspension:

Type:

Telescopic fork

Spring/shock absorber type:

Coil spring/oil damper

Wheel travel:

130.0 mm (5.12 in)

Rear suspension:

Type:

Swingarm (monocross)

Spring/shock absorber type:

Coil spring/oil damper

Wheel travel:

125.0 mm (4.92 in)

Electrical system:

Ignition system:

TCI (digital)

Charging system:

AC magneto

Battery:

Model:

12N5.5-3B / YUASA

Voltage, capacity:

12 V, 5.5 Ah

Headlight:

Bulb type:

Halogen bulb

Bulb voltage, wattage × quantity:

Headlight:

12 V, 55 W × 2

Tail/brake light:

LED x 8

Front turn signal light:

12 V, 10.0 W × 2

Rear turn signal light:

12 V, 10.0 W × 2

Auxiliary light:

12 V, 5.0 W × 2

Meter lighting:

LED

Neutral indicator light:

LED

High beam indicator light:

LED

Turn signal indicator light:

LED

Coolant temperature warning light:

LED

Engine trouble warning light:

LED

Fuses:

Main fuse:

20.0 A

Headlight fuse:

15.0 A

Signaling system fuse:

7.5 A

Ignition fuse:

7.5 A

Radiator fan fuse:

5.0 A

    Storage
    Short-term Always store your motorcycle in a cool, dry place and, if necessary, protect it against dust with a porous cover. NOTICE Storing the motorcycle in a poorly ventilated room or c ...

    Consumer information
    ...

    Other materials:

    Checking the turn signal relay
    1. Check: Turn signal relay input voltage Out of specification →The wiring circuit from the main switch to the turn signal relay coupler is faulty and must be repaired. a. Connect the pocket tester (DC 20 V) to the turn signal relay terminal as shown. - Positive tester probe  b ...

    Replacing the rear brake pads
    NOTE: When replacing the brake pads, it is not necessary to disconnect the brake hose or disassemble the brake caliper. 1. Remove: Brake pads Brake pad spring NOTE: To remove the inner brake pad "1", push down on the brake caliper bracket so that there is space to remove the brake pa ...

    Replacing the fuses
    Replacing the fuses Fuse box Spare fuse Headlight fuse Signaling system fuse Ignition fuse Radiator fan fuse Main fuse The fuse box is located under the rider seat. If a fuse is blown, replace it as follows. Turn the key to "OFF" and turn off the electrical circuit i ...

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