Yamaha XJ400 Seca: history, specs, pictures
| Yamaha XJ400 Seca | |
| Manufacturer | |
|---|---|
| Also called | XJ 400 Seca |
| Production | 1981 |
| Class | Standard |
| Engine | four cylinder boxer, four-stroke |
| Bore / Stroke | 51.0mm x 48.8mm |
| Top Speed | 101 mph (162 km/h) |
| Horsepower | 43.99 HP (32.8 KW) @ 10000RPM |
| Torque | 25.0 ft/lbs (33.9 Nm) @ 8000RPM |
| Fuel System | carburetor. 2x34 mikuni |
| Ignition | battery powered inductive |
| Transmission | Gear box: 6-speed Final Drive: chain |
| Suspension | Front: 35mm telescopic forks Rear: single adjustable spring preload |
| Brakes | Front: single disc. 1 piston caliper Rear: expanding brake (drum brake) |
| Front Tire | -19 |
| Rear Tire | 110/90-18 |
| Weight | 388.01 pounds (176.0 Kg) (dry), |
| Recommended Oil | Yamalube 10w-40 |
| Manuals | Service Manual |
The Yamaha XJ400 Seca was a four cylinder boxer, four-stroke standard produced by Yamaha in 1981. It could reach a top speed of 101 mph (162 km/h). Max torque was 25.0 ft/lbs (33.9 Nm) @ 8000 RPM. Claimed horsepower was 43.99 HP (32.8 KW) @ 10000 RPM.
Engine[edit | edit source]
The engine was a air cooled four cylinder boxer, four-stroke. A 51.0mm bore x 48.8mm stroke result in a displacement of just 398.0 cubic centimeters. Fuel was supplied via a double overhead cams/twin cam (dohc).
Drive[edit | edit source]
The bike has a 6-speed transmission.
Chassis[edit | edit source]
It came with a -19 front tire and a 110/90-18 rear tire. Stopping was achieved via single disc. 1 piston caliper in the front and a expanding brake (drum brake) in the rear. The front suspension was a 35mm telescopic forks while the rear was equipped with a single adjustable spring preload. The bike weighed just 388.01 pounds (176.0 Kg).