Kawasaki KMX

The Kawasaki KMX is a water-cooled 2-stroke motorcross bike. There are two versions, the KMX 125 cc and the larger 200 cc model under the KMX title.

They both feature front and rear disc brakes, water-cooled engines, mono link suspension (Kawasaki's Uni-Trak system) and a power valve system (KIPS).

KMX 125

1986-2004

Models: A1-A13/B1-B12

The A and B model denotes whether or not the bike has been restricted down to a power output deemed necessary for a learner with a provisional drivers license in some countries or an A1 motorcycle license[1] in the United Kingdom, The "A" models, running from 1986 to 2001 came from the factory in a unrestricted form, producing 20 bhp at the rear wheel easily reaching 85 mph with some modifications to the gearing ratio (sprockets).

Specifications of restricted 'B' model
  • Top speed: 71 mph
  • 1/4-mile acceleration: 18.4 secs
  • Power: 12 bhp
  • Torque: 9ftlb
  • Weight: 110 kg
  • Seat height: 865 mm
  • Fuel capacity: 9 litres
  • Average fuel consumption: 55mpg
  • Tank range: 110 miles
  • Insurance group: 5
  • Engine size: 124 cc
  • Engine specification: Water-cooled, Single-cylinder 2 Stroke, 6 gears (One down, five up configuration).
  • Frame: Tubular steel cradle
  • Front suspension adjustment: None
  • Rear suspension adjustment: Preload
  • Front brakes: Single 230 mm disc
  • Rear brake: 210 mm disc
  • Front tyre size: 2.75 x 21
  • Rear tyre size: 4.10 x 18

KMX 200

Kawasaki KMX 200

  • Year: 1987-1992
  • Engine: Liquid cooled, two stroke, single cylinder, piston reed valve induction.
  • Capacity: 191cc
  • Bore x Stroke 67 x 54 mm
  • Compression Ratio 8.0:1
  • Induction: 26mm Mikuni carb
  • Ignition/Starting: Kick
  • Max Power: 30.4 hp @ 8500 rpm
  • Max Torque: 18.6 ft-lb @ 7500 rpm
  • Transmission: 6 Speed
  • Drive: Chain
  • Front Suspension: Air assisted leading axle telescopic.
  • Rear Suspension: Uni-Trak rising rate monoshock, adjustable preload.
  • Front Brakes: Single 213mm disc
  • Rear Brakes: Single 183mm disc
  • Front Tyre: 3.00-21
  • Rear Tyre: 4.60-17
  • Dry-Weight: 100 kg
  • Fuel Capacity : 9.3 Litres
  • Range: 100 miles
  • Top speed: With a very strong tailwind 100 mph (indicated)

References
  1. "Riding a motorcycle, moped or motor tricycle". GOV.UK. Retrieved 2019-08-01.
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