Yamaha xj400 (1982-83)

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The Yamaha XJ 400 Seca was a motorcycle produced from 1982-83. It featured a four stroke, transverse four cylinder engine and had a capacity of 398cc. The bike was air cooled with a compression ratio of 9.7:1 and used a battery powered inductive ignition system. The engine was capable of producing 45 hp/32.8 kW at 10000 rpm and a maximum torque of 3.5 kgf-m/25.5 [email protected] 8000 rpm. It had a 6-speed transmission with a final drive chain. The front suspension featured 35mm telescopic forks and had a front wheel travel of 142mm/5.6in. The rear suspension was a single shock system with adjustable spring preload and had a rear wheel travel of 96mm/3.8in. The bike had a single disc 1 piston caliper front brake and a drum rear brake. The front tyre was 3.00-19 while the rear tyre was 110 90-18. It had a dry weight of 176kg/388lbs and a fuel capacity of 15 Litres/3.9 US gal. It was capable of reaching a top speed of 162.5 km/h/101 mph and could complete the standing 1/4 mile in 14.0 seconds, reaching a speed of 90.5 mph.

Technische Daten:

Make Model: Yamaha XJ 400 Seca

Jahr: 1982 - 83


Engine: Four stroke, transverse four cylinder. DOHC
Hubraum: 398 ccm / 24,2 cu-in
Bore x Stroke: 51 48.8 mm
Kühlsystem: Luftgekühlt
Verdichtungsverhältnis: 9,7:1
Induction: 2x 34mm Mikuni carburetor
Zündung: Batteriebetrieben, induktiv
Anfahren: Elektrisch
Max Power: 45 hp / 32.8 kW @ 10000 rpm
Max Torque: 3.5 kgf-m / 25 [email protected] 8000 rpm
Getriebe: 6-Gang
Endantrieb: Kette
Vorderradaufhängung: 35-mm-Teleskopgabel
Federweg Vorderrad: 142 mm / 5.6 in
Rear Suspension: Single shock, adjustable spring preload

Federweg Hinterrad: 96 mm / 3.8 in
Vordere Bremsen: Einscheibenbremse mit 1 Kolbenzange
Hintere Bremsen: Trommel
Front Tyre: 3.00-19
Rear Tyre: 110 90-18
Trockengewicht: 176 kg / 388 lbs
Kraftstoffkapazität: 15 Liter / 3.9 US gal
Standing 1/4 Mile: 14.0 sec / 90.5 mph
Top Speed: 162.5 km/h / 101 mph

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