Categories: Yamaha

Yamaha SR400SP (1993-97)

The Yamaha SR 400 motorcycle was produced from 1993-97 and had a four stroke, single cylinder, SOHC engine with 2 valves per cylinder, and a capacity of 399cc. It had a compression ratio of 8.5:1, was air cooled, and had a dry sump lubrication system. It used a BSR33 carburetor, had a CDI ignition, and was kick-started. The motorcycle had a max power of 27hp/17.1KW @ 7000rpm and a max torque of 27.4Nm/6.3kgf-m @ 6500rpm. It had a wet, multiple disc clutch and a 5-speed transmission with a final drive chain. The frame was made of steel double cradle, and it had a telescopic fork front suspension and dual shocks in the rear. The front wheel traveled 150mm/5.9in and the rear traveled 111mm/4.3in. It had a single front disc brake and a rear drum brake, with a 3.50-19 front tire and a 4.00-16 rear tire. The rake caster angle was 27o and had a 111mm/4.4in trail. The wheelbase was 1410mm/55.5in, the seat height was 790mm/30.9in, and the ground clearance was 130mm/5.1in. The wet weight was 174kg/384lbs and the fuel capacity was 12 Liters/3.2 gallons.


Technical specifications:

Make Model: Yamaha SR 400

Year: 1993 – 97

Engine: Four stroke, single cylinder, SOHC, 2 valves per cylinder.

Capacity: 399 cc / 24.3 cu-in



Bore x Stroke: 87 67.2 mm

Compression Ratio: 8.5:1

Cooling System: Air cooled

Oil Capacity: 2.4 Litres

Lubrication: Dry sump

Induction: BSR33 carburetor

Ignition: CDI

Starting: Kick

Max Power: 27 hp / 17.1 KW @ 7000 rpm

Max Torque: 27.4 Nm / 6.3 kgf-m @ 6500 rpm

Clutch: Wet, Multiple Disc

Transmission: 5 Speed

Final Drive: Chain


Frame: Steel Double Cradle

Front Suspension: Telescopic fork

Front Wheel Travel: 150 mm / 5.9 in

Rear Suspension: Dual shocks

Front Wheel Travel: 111 mm / 4.3 in

Front Brakes: Single disc

Rear Brakes: Drum

Front Tyre: 3.50-19

Rear Tyre: 4.00-16

Rake Caster Angle: 27 o


Trail: 111 mm / 4.4 in

Wheelbase: 1410 mm / 55.5 IN

Seat Height: 790 mm / 30.9 in

Ground Clearance: 130 mm / 5.1 in

Wet Weight: 174 kg / 384 lbs

Fuel Capacity: 12 Litres / 3.2 gal
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