The Yamaha XJ 750 Seca was a motorcycle made by Yamaha in 1982, based on the technology used on the sportier XJ 650 model. The bike was named after Laguna Seca Raceway, a Californian racetrack near Monterey, California.
Compared to the sportier XJ 650 model, the XJ 750 Seca was more like a chopper. The bike had an onboard computer that constantly monitored essential functions, such as side stand position, brake fluid, oil level, battery fluid, headlights, and brake lights.
In Germany, the manufacturer sold 3,181 units at an MSRP of $8,000, and in 1984, it was replaced by the Yamaha XJ 750 F.
In 1981, the Japanese motorcycle manufacturer launched the Yamaha XJ 750 Seca, a chopper-oriented motorcycle with the most technically advanced package.
In the visual department, the bike had standard features, such as a rectangular headlight with a smaller beneath, a one-piece dual seat with a passenger grab handle, a four-into-two exhaust system with a silencer on each side, and five double-spoke lightweight wheels.
The bike was built around a double-cradle steel frame with a telescopic fork on the front, offering 150 mm of travel, and side-mounted shock absorbers on the rear, providing 96 mm wheel travel.
As for the power figures, the 1981 Yamaha XJ 750 Seca had its soul brought to life by a 749cc four-stroke air-cooled four-cylinder engine that delivered an output power of 76 hp at 9,000 rpm and 66 Nm (49 lb-ft) torque at 7,500 rpm.
|engine specs||Type:||Yamaha lunched in 1981 one of the most technically advanced motorcycles of its time. Yamaha built the big XJ 750 Seca around a sweetheart of an engine, an enlarged version of 1980’s cruiser surprise, the 650 Maxim. The 750 version of the Seca was understr||Displacement:||749 cm3||Bore X Stroke:||2.5x2.2 in OR 64 mm||Compression Ratio:||9.2:1||Horsepower:||76/9000 KW(hp)/RPM||Torque:||49/7500 lb-ft/RPM OR 66/7500 Nm/RPM||Fuel System:||4x34mm Mikuni Carburetors|
|transmission specs||Gearbox:||5-Speed||Clutch:||Wet multi-plate||Primary Drive:||-||Final Drive:||Shaft|
|chassis specs||Frame:||Double cradle||Front Suspension:||Telescopic Forks||Rear Suspension:||Swing Arm||Front Brake:||Single 269mm Disc||Rear Brake:||Drum|
|dimension specs||Overall Length:||86.4 in OR 2195 mm||Overall Width:||-||Seat Height:||-||Weelbase:||56.9 in OR 1445 mm||Ground Clearance:||-||Weight:||531 lbs OR 241 kg||Fuel Capacity:||5 gallons OR 18.9 L|
|power system specs||Power pack:||-||Nominal Capacity:||-||Maximum Capacity:||-||Charger type:||-||Charging time (normal):||-||Charging time (quick):||-||Range:||-|