Team Green's New Iron! KX100

2003 Dirt Bikes From Kawasaki

Feb. 01, 2006 By ORC STAFF
New Offerings And Old Friends
KX100 - MSRP: $3,449.00

Designed to bridge the gap between the KX85 minicycle and the KX125 motocrosser, the Kawasaki KX100 is the best of both off-road worlds. It's a sizable step up from the potent KX85, thanks to larger wheels, minor chassis adjustments and increased displacement. Moreover, the KX100 is the perfect stepping stone into the big leagues.

The KX100 is powered by a liquid-cooled, two-stroke engine, with a machined finish on the bridges between the intake and exhaust ports to improve engine reliability and resist seizure. With a displacement of 99cc, the motor breathes through a 28mm carburetor with a crescent slide to position the needle closer to the intake ports. A large air intake cutout on the airbox and large-diameter duct to the carburetor improve airflow. Meanwhile, a carbon-fiber intake reed valve aids throttle response and a smooth-shifting six-speed transmission gets the KX100 around the track without missing a beat.

The KX100's backbone is a high-tensile steel perimeter frame, which supports a specially designed gas tank that lowers the fuel load, and in turn, the center of gravity, for improved handling. Protected by lime green plastic that wears graphics to match the larger-displacement models, the frame has a slim symmetric finish and provides comfortable riding position.

Adjustable long-travel suspension at both ends ensues smooth riding on even the roughest motocross courses. The 36mm inverted cartridge fork has compression damping adjustment capability and the UNI-TRAK rear shock comes equipped with a fully adjustable shock with spring preload, compression and rebound damping adjustments. In the braking department the front brake master cylinder shares the same knocker-type as the KX125 and KX250 for better feel, and both front and rear discs are mounted with shoulder bolts for easier maintenance.

All KX motorcycles come with the support of Team Green™, Kawasaki's amateur support program. Each year, Team Green attends more than 100 events across the country, providing regional support vehicles and highly trained technicians to provide technical information and assistance for anyone who rides or races a Kawasaki. Kawasaki also offers a comprehensive contingency program for amateur and professional riders who place well at designated events.


Liquid-cooled Engine

  • Right-hand engine cover provides a separate clutch cover for quick servicing without removing the water pump
  • Assures greater reliability
  • Bridges between intake and exhaust ports have machined finish for increased durability

Kawasaki Integrated Power Valve System

  • KIPS system controls exhaust port height for increased horsepower and torque
  • Produces a broad powerband with more low-end torque while retaining excellent top-end power

28mm Keihin Carburetor

  • Crescent slide carburetor puts the needle closer to the intake ports for excellent throttle response
  • Adjustable for various conditions

Clutch hub rides on needle bearings for smooth action

  • Large clutch plates are 119mm in diameter for durability and control
  • Clutch-release lever ratio provides light clutch lever action
  • Thick clutch basket housing improves durability

Six-speed Transmission

  • Fifth and sixth gears on the input shaft ride on bushings for added reliability
  • Positive shifting action and rugged durability, with a gear for every situation
  • Allows the engine's full potential to be realized
  • Provides oil level window
  • Hard-anodized shift forks resist wear and seizure

High-tensile Steel Perimeter Frame

  • Same tubing material used on larger KX models

Wide footpegs for better control, made of cast steel for strength

  • Thick footpeg brackets withstand today's rigorous tracks
  • Sidestand is detachable like larger KX models

Fuel Tank - Positioned in the frame to lower center of gravity and improves handling

  • Features new graphics to match larger-displacement KX models
  • Fitted with new square inset nuts for more securing mounting of shrouds and seat base

UNI-TRAK® Rear Suspension - The swingarm uses large cross-section beams for more rigidity and control

  • The swingarm incorporates cast-aluminum drive chain adjuster sections, like the big KX models for easy chain adjustments and swingarm rigidity
  • Flanged collars at the bearings to protect the seals from mud
  • Fully adjustable shock with compression, rebound damping and spring preload adjustments

36mm Inverted Cartridge Fork

  • The upper tubes are made of aluminum and are 49.5mm in diameter for excellent control and steering response
  • Compression damping is 18-way adjustable

Front and Rear Disc Brakes

  • Forged-aluminum rear brake pedal is strong, light weight and features two seals at the pivot for smooth operation
  • Front master cylinder has knocker-type lever

Front and Rear Wheels

  • Rear hub features two wheel bearings on the drive side of the hub for durability
  • Thick spokes are used front and rear for stronger wheels, requiring less adjustment
  • Light-weight aluminum rims
Engine 2-stroke single w/KIPS
Displacement 99cc
Bore x Stroke 52.5 x 45.8mm
Cooling Liquid
Carburetion Keihin PWK28
Induction 2-petal reed valve
Compression ratio 9.6:1 (low speed) - 8.8:1 (high speed)
Ignition Digital CDI
Transmission 6-speed
Frame High-tensile steel perimeter design with subframe member
Rake/trail 27°/4.1 in.
Suspension type, front Inverted telescopic cartridge fork, 36mm
Suspension adjustments, front 18-way compression damping
Suspension type, rear UNI-TRAK® single shock system
Suspension adjustments, rear Spring preload, 4-way compression and 18-way rebound damping
Wheel travel, front 10.8 in.
Wheel travel, rear 10.8 in.
Tire, front 70/100x19
Tire, rear 90/100x16
Brakes, front/rear Hydraulic disc
Overall length 75.2 in.
Overall width 28.9 in.
Overall height 43.5 in.
Ground clearance 15.0 in.
Seat height 34.3 in.
Dry weight 149.9 lbs.
Fuel capacity 1.5 gal.
Wheelbase 50.8 in.
Color Kawasaki Lime Green

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