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
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