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Kawasaki KZ400S


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1975 Kawasaki KZ400S

The Kawasaki KZ400S was a 400cc, twin cylinder, four stroke, street motorcycle manufactured by Kawasaki from 1975 through 1977.

1975 KZ400S

1975 Kawasaki KZ400S



  • 400 cc
  • Four-stroke, 2 Cylinder
  • Single Over Head Camshaft
  • 5-Speed Return Shift
  • Maximum Horsepower:
  • 35 HP 638,500 rpm
  • Spark Plug: NGK B8ES
    • or ND W24ES
  • Tire Size
  • Front: 3.253-18 4PR
  • Rear: 3.50s-18 4PR
  • Color
    • Fuel Tank: Candy Super Red, Candy Blue
    • Front Fender: Chrome
  • Engine No.: K4SE00001-,(L) K4SE002456-
  • Frame No. : K4S-00001-, (L) K4S-50001-
  • Parts Catalogue No. : 99997-635 plus 99997-635-50s
  • Owner's Manual No.: 99997-856
  • Shop Manual No.: 99997-710-00
  • Remarks: Similar in appearance to the KZ400D, except this has a drum brake on the front, and no electric starter. From late '75 model, tire tread patterns changed.

1976 KZ400-S2

1976 Kawasaki KZ400-S2


  • Color
  • Fuel Tank: Diamond Blue, Permanent Red
  • Front Fender: Silver
  • Engine No,: K4SE010701-
  • Frame No.: K4S-04601-
  • Parts Catalogue No.: 99997-677
  • Owner's Manual No.: 99997-880-00
  • Shop Manual No.: 99997-710-00
  • Major Changes: Color, marking, front fender, and grips. Tachometer and center stand discontinued. 2-into-1 exhaust, locking tank cap, and three-fuse system adopted. Max. horsepower lowered to 34 HP.

1977 KZ400-S3

1977 Kawasaki KZ400-S3


  • Color
  • Fuel Tank: Candy Orient Blue, Permanent Red
  • Front Fender: Silver
  • Engine No.: K4SE027101-
  • Frame No.: K4S-18101-
  • Parts Catalogue No.: 99997-677-50s
  • Owner's Manual No.: 99932-005-00
  • Shop Manual No. : 99997-710-00
  • Major Changes: Color, marking, carburetors, and ignition timing.

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