Yamaha XJ 750 Seca

Yamaha XJ 750 Seca

The 1982 Yamaha XJ 750 Seca is a stylish and Supersport motorcycle with Air cooled, 748cc, Inline-4, DOHC and 81.44 HP (59.9 kW) @ 9000 rpm.

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Model year
1982
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Make
Yamaha
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Engine Power
81.44 HP (59.9 kW) @ 9000 rpm
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Top Speed
126.76 mph

Technical Specifications

Engine and transmission

  • Engine type:
    4 cylinders, 4-stroke, Inline
  • Displacement:
    748 cc (45.7 cubic inches)
  • Bore × stroke:
    2.56 inch × 2.22 inch (oversquare - shortstroke)
  • Cooling system:
    Air cooled
  • Power:
    81.44 HP (59.9 kW) @ 9000 rpm
  • Throttle:
    Cable operated
  • Valve train:
    DOHC, variable
  • Valves per cylinder:
    2
  • Sparks per cylinder:
    1
  • Fuel supply system:
    Carburetor
  • Compression:
    9.2:1
  • Engine mounting:
    Transverse
  • Lubrication system:
    Wet sump
  • Gear box:
    Manual 5-speed
  • Clutch:
    Wet, multiple discs, cable operated
  • Final drive:
    Shaft
  • Starter:
    Electric

Dimensions

  • Curb weight:
    531.3 lbs

Chassis and suspension

  • Front
    Suspension:
    Cartridge
    Brake:
    Twin Disk
  • Rear
    Suspension:
    mono shock, Swingarm
    Brake:
    Drum
    Tire:
    120 / 90 R18
  • Frame type:
    steel, Double cradle frame

Other

  • ABS available:
    No
  • Power-to-weight ratio:
    0.25 KW/lbs (4.02 lbs/HP)
  • Top speed:
    126.76 mph
  • Fuel capacity:
    4.76 gals
  • Number of riders:
    2 persons
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