Yamaha SR125 (1982-86)

The Yamaha SR 125 was a popular motorcycle produced from 1982-86. It featured a four stroke, single cylinder engine with a capacity of 125 cc and a compression ratio of 10.0:1. The TEIKEI Y24P/1 carburetor and CDI ignition contributed to its maximum power output of 12 hp at 8500 rpm, with a maximum torque of 9.8 Nm at 8000 rpm. The motorcycle had a 5-speed transmission and chain final drive, with a front suspension of telescopic forks and a rear suspension of dual shocks. Braking was achieved through a single 237mm disc in the front and a 130mm drum at the rear. The motorcycle’s weight was 103 kg and fuel capacity was 10 litres.

---

Technical specifications:

Make Model: Yamaha SR 125

Year: 1982 – 86

Engine: Four stroke, single cylinder. OHV, 2 valve

Capacity: 125 cc / 7.6 cu-in

Bore x Stroke: 57 X 48.8 mm

Cooling System: Air cooled

Compression Ratio: 10.0:1

Induction: TEIKEI Y24P/1 carburetor

Ignition: CDI

Starting: Electric

Max Power: 12 hp / 8.8 kW @ 8500 rpm

Max Torque: 9.8 Nm @ 8000 rpm

Transmission: 5 Speed

Final Drive: Chain

Front Suspension: Telescopic forks

Front Wheel Travel: 120 mm / 4.5 in

Rear Suspension: Dual shocks

Rear Wheel Travel: 78 mm / 3.0 in

Front Brakes: Single 237mm disc

Rear Brakes: 130mm drum

Front Tyre: 3.00-17

Rear Tyre: 3.00-16

Wheelbase: 1285 mm / 50.5 in

Seat Height: 745 mm / 29.3 in

Dry Weight: 103 kg / 22.7 lbs

Fuel Capacity: 10 Litres / 2.6 US gal