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Yamaha XJ 400 Seca - 1981 Specifications and Reviews

1981
3 stars Average rating: 3 from 1 votes
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General information

CategoryNaked bike
Year1981
ModelYamaha XJ 400 Seca

Engine and Transmission Specifications

Transmission typefinal driveChain
Gearbox6-speed
Cooling systemAir
StarterElectric
IgnitionBattery Powered Inductive
Fuel controlDOHC
Fuel systemCarburettor. 2x34 Mikuni
Bore x stroke51.0 x 48.8 mm (2.0 x 1.9 inches)
Compression9.7:1
Torque33.90
Power45.00
Stroke4
Engine typeFour cylinder boxer
Capacity:398.00 ccm (24.29 cubic inches)

Physical measures and capacities

Dry weight176.0 kg (388.0 pounds)
 
 

Yamaha XJ 400 Seca dimensions and frame

Rear brakesExpanding brake (drum brake)
Front brakesSingle disc. 1 Piston Caliper
Rear tyre dimensions110/90-18
Front tyre dimensions-19
Rear suspension travel96 mm (3.8 inches)
Rear suspensionSingle Adjustable Spring Preload
Front suspension travel142 mm (5.6 inches)
Front suspension35mm Telescopic Forks

Speed and acceleration

Power/weight ratio0.2557 HP/kg
1/4 mile (0.4 km)14.000 seconds
Top speed162.5 km/h (101.0 mph)

Other specs

Color optionsBlack

Rider Reviews

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