1980 Yamaha XJ 400 Seca technical specifications

Technical specifications

Model: XJ 400 Seca
Years: 1980-81
Engine: Four stroke, transverse four cylinder. DOHC
Capacity: 398 cc / 24.2 cu-in
Bore x Stroke: 51 х 48.8 mm
Cooling System: Air cooled
Compression Ratio: 9.7:1
Induction: 2x 34mm Mikuni carburetor
Ignition: Battery powered inductive
Starting: Electric
Max Power: 45 hp / 32.8 kW @ 10000 rpm
Max Torque: 3.5 kgf-m / 25 lb-ft@ 8000 rpm
Transmission: 6 Speed
Final Drive: Chain
Front Suspension: 35mm Telescopic forks
Front Wheel Travel: 142 mm / 5.6 in
Rear Suspension: Single shock, adjustable spring preload
Rear Wheel Travel: 96 mm / 3.8 in
Front Brakes: Single disc 1 piston caliper
Rear Brakes: Drum
Front Tyre: 3.00-19
Rear Tyre: 110 90-18
Dry Weight: 176 kg / 388 lbs
Fuel Capacity: 15 Litres / 3.9 US gal
Standing ¼ Mile: 14.0 sec / 90.5 mph
Top Speed: 162.5 km/h / 101 mph

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