Kawasaki KE100A: history, specs, pictures

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Kawasaki KE100
Also called KE 100
Production 1975
Class Dual purpose
Predecessor Kawasaki G5
100cc single cylinder, two-stroke
Bore / Stroke 49.5mm x 51.8mm
Top Speed 62 mph (100 km/h)
Horsepower 10.73 HP (8.0 KW) @ 7000RPM
Spark Plug NGK B8HS '76-77
NGK B8ES '78 , '79-81
Battery YUASA 6N4-2A-5 '76-78
YUASA 6N6-1 D-2 '79-81
Transmission Gear box: 5-speed
Final Drive: chain
Final Drive Chain: 428 `76-77[1]
Brakes Front: expanding brake
Rear: expanding brake
Front Tire 2.75-19
Rear Tire 3.00-18
Weight 101.0 kg (wet)
Recommended Oil K-tech 10W-40
Fuel Capacity 2.11 Gallon (8.00 Liters)
Manuals Service Manual

The Kawasaki KE100A was a dual-purpose motorcycle manufactured by Kawasaki from 1976 to 1981. It was alpha-numerical replacement for the Kawasaki G5. Major changes over the G5 were color, marking, speedometer position, grips, and seat. The KE also had brighter head and tail lights. It could reach a top speed of 62 mph (100 km/h). Claimed horsepower was 10.73 HP (8.0 KW) @ 7000 RPM.


The engine was a air cooled single cylinder, two-stroke. A 49.5mm bore x 51.8mm stroke result in a displacement of just 100.0 cubic centimeters. Fuel was supplied via a rotary valves.


The bike has a 5-speed transmission.


It came with a 2.75-19 front tire and a 3.00-18 rear tire. Stopping was achieved via expanding brake in the front and a expanding brake in the rear. The KE100 was fitted with a 2.11 Gallon (8.00 Liters) fuel tank.


1976 Kawasaki KE100


  • 100cc
  • 2-Stroke, 1 Cylinder
  • Rotary Disc Valve
  • 5-Speed Return Shift
  • Maximum Horsepower: 11 HP 07,500 rpm
  • Spark Plug: NGK B8HS
  • Tire Size
    • Front: 2.75-17 4PR
    • Rear: 3.00-18 4PR
  • Color
    • Fuel Tank: Candy Sky Blue, Candy Copper
    • Front Fender: Same as fuel tank
  • Engine No.: G5E090900-
  • Frame No. : G5-091700-
  • Parts Catalog No. : 99997-651-51S,
    • General Export: 99997-651-52S
  • Owner's Manual No. : 99997-867-00
  • Shop Manual No.: 99997-748-00


1977 Kawasaki KE100

  • Color
    • Fuel Tank: Poppy Red, Parrot Green
    • Front Fender: Gray
  • Engine No.: G5E105501-
  • Frame No.: G5-105501-
  • Parts Catalog No.:99997-651-535
    • General Export: 99997-651-54S
  • Owner's Manual No.: 99997-892-00
  • Shop Manual No.: 99997-748-00
  • Major Changes: Color. Tandem footpegs added. Bleed valve added to oil pump. Rotary disc material changed to steel.


1978 Kawasaki KE100

  • Color
    • Fuel Tank: Candy Coablt Blue, Sunflower Yellow
    • Front Fender: White
  • Engine No.: G5ElT3701-
  • Frame No.: G5-114201-
  • Parts Catalog No.: 99970-1003-01,
    • General Export: 99910-1020-01
  • Owner's Manual No. : 99920-1 005-00
  • Shop Manual No.: 99997-748-00
  • Major Changes: Color, marking, gear shift pattern, and left engine cover. Spark plug changed to B8ES due to cylinder head design change.





In Media[edit]


  1. 2019 Western Power Sports Catalog. Western Power Sports. 2019.