Yamaha SR125 (1992-03)

The Yamaha SR125 was produced from 1992 to 2003, featuring a four-stroke, single-cylinder engine with an OHV and two valves. It has a displacement of 125cc and a compression ratio of 10.0:1. The Teikei Y24P/1 carburetor provides induction, while CDI supplies ignition.

Electric starting makes it easy to get going, and the motorcycle reaches a top power output of 12 hp at 8,500 rpm and 9.8 Nm of torque at 8,000 rpm. A five-speed transmission and chain final drive allow riders to shift gears efficiently.

Telescopic forks and dual shocks are used in the front and rear suspensions respectively, and they offer 120mm of wheel travel in the front and 78mm in the rear. The front of the SR125 is stopped by a single 237mm disc brake, while a 130mm drum brake is used at the rear.

The 3.00-17 front tire and 3.00-16 rear tire travel on a wheelbase of 1285mm, and the motorcycle provides a seat height of 745mm, making it comfortable for riders of various heights. It weighs 103kg and holds 10 litres of fuel in its tank, providing a range of around 60 miles on a single tank.

Technical specifications:

Make Model: Yamaha SR 125

Year: 1992 – 03
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