Model Yamaha XJ 400 Seca is a type of motorcycle Naked, produced by Yamaha. This 1981 model.
Engine size 398.00 ccm (24.29 cubic inches), engine type Four cylinder boxer, four-stroke, – valves per cylinder, 6-speed gearbox, and transmission the type Chain.
Fuel system – Carburettor. 2×34 Mikuni. In the motorcycle Yamaha XJ 400 Seca 1981 uses a cooling system of the type Air.
Full speed Yamaha XJ 400 Seca – 162.5 km/h (101.0 mph).
Acceleration from 0 to 100 km/h – -.
Fuel tank volume -, and a reserve of -. Fuel consumption averaged -.
Front brake – Single disc. 1 Piston Caliper, -; rear brake – Expanding brake (drum brake), -. Stock tire sizes are -19 on the front, and 110/90-18 on the rear.
More technical specifications for Yamaha XJ 400 Seca 1981, see below.
Specs Yamaha XJ 400 Seca 1981
| Brand | Yamaha |
|---|---|
| Model | Yamaha XJ 400 Seca |
| Year | 1981 |
| Displacement | 398.00 ccm (24.29 cubic inches) |
| Engine type | Four cylinder boxer, four-stroke |
| Power | 45.00 HP (32.8 kW)) @ 10000 RPM |
| Compression | 9.7:1 |
| Fuel system | Carburettor. 2×34 Mikuni |
| Engine details | – |
| Max RPM | – |
| Cooling system | Air |
| Bore x stroke | 51.0 x 48.8 mm (2.0 x 1.9 inches) |
| Torque | 33.90 Nm (3.5 kgf-m or 25.0 ft.lbs) @ 8000 RPM |
| Ignition | Battery Powered Inductive |
| Starter | Electric |
| Oil capacity | – |
| Lubrication system | – |
| Valves per cylinder | – |
| Exhaust system | – |
| Gearbox | 6-speed |
| Transmission type, final drive | Chain |
| Clutch | – |
| Driveline | – |
| Fuel consumption | – |
| Fuel control | Double Overhead Cams/Twin Cam (DOHC) |
| Fuel capacity | – |
| Reserve fuel capacity | – |
| Wheels | – |
| Front tyre | -19 |
| Rear tyre | 110/90-18 |
| Front brakes | Single disc. 1-piston caliper |
| Front brakes diameter | – |
| Rear brakes | Expanding brake (drum brake) |
| Rear brakes diameter | – |
| Wheelbase | – |
| Weight incl. oil, gas, etc | – |
| Dry weight | 176.0 kg (388.0 pounds) |
| Power/weight ratio | 0.2557 HP/kg |
| Seat height | – |
| Overall height | – |
| Overall length | – |
| Overall width | – |
| Carrying capacity | – |
| Ground clearance | – |
| Alternate seat height | – |
| Trail | – |
| Front suspension | 35mm Telescopic Forks |
| Rear suspension | Single Adjustable Spring Preload |
| Rake (fork angle) | – |
| Front wheel travel | 142 mm (5.6 inches) |
| Rear wheel travel | 96 mm (3.8 inches) |
| Front percentage of weight | – |
| Rear percentage of weight | – |
| Top speed | 162.5 km/h (101.0 mph) |
| 0-100 km/h (0-62 mph) | – |
| 1/4 mile (0.4 km) | 14.000 seconds |
| Color options | Black |
| Seat | – |
| Frame type | – |
| Instruments | – |
| Emission details | – |
| Electrical | – |
| Light | – |
| Comments | – |
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