Yamaha SR400SP (1998-03)

The Yamaha SR400SP motorcycle was produced from 1998 to 2003. It is powered by a 399cc, four-stroke, single-cylinder, SOHC engine with a compression ratio of 8.5:1. The engine is cooled by air and equipped with a BSR33 carburetor and CDI ignition. With a maximum power output of 27 hp and torque of 27.4 Nm, it has a wet, multiple-disc clutch and a five-speed transmission with chain final drive. The motorcycle has a steel double cradle frame, front telescopic fork suspension, and dual shock rear suspension. The front wheel travel is 150 mm, and the rear wheel travel is 111 mm. The front brake is a single disc, and the rear brake is a drum. The front tire is 3.50-19 and the rear tire is 4.00-16, with a wheelbase of 1410 mm and a seat height of 790 mm. The ground clearance is 130 mm, and the wet weight is 174 kg. The motorcycle has a fuel capacity of 12 liters.

Technical specifications:

Make Model: Yamaha SR 400

Year: 1998 – 03
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