Yamaha XJ 400 Seca (1981)

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General information
Model:	Yamaha XJ 400 Seca
Year:	1981
Category:	Naked bike
Engine and transmission
Displacement:	398.00 ccm (24.29 cubic inches)
Engine type:	Four cylinder boxer
Stroke:	4
Power:	45.00
Torque:	33.90
Compression:	9.7:1
Bore x stroke:	51.0 x 48.8 mm (2.0 x 1.9 inches)
Fuel system:	Carburettor. 2x34 Mikuni
Fuel control:	DOHC
Ignition:	Battery Powered Inductive
Starter:	Electric
Cooling system:	Air
Gearbox:	6-speed
Transmission typefinal drive:	Chain
Physical measures and capacities
Dry weight:	176.0 kg (388.0 pounds)
Yamaha XJ 400 Seca dimensions and frame
Front suspension:	35mm Telescopic Forks
Front suspension travel:	142 mm (5.6 inches)
Rear suspension:	Single Adjustable Spring Preload
Rear suspension travel:	96 mm (3.8 inches)
Front tyre dimensions:	-19
Rear tyre dimensions:	110/90-18
Front brakes:	Single disc. 1 Piston Caliper
Rear brakes:	Expanding brake (drum brake)
Speed and acceleration
Top speed:	162.5 km/h (101.0 mph)
1/4 mile (0.4 km):	14.000 seconds
Power/weight ratio:	0.2557 HP/kg
Other specs
Color options:	Black

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