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Kelly's
Kawasaki
817 S. Country Club Drive
Mesa, AZ 85210
480.969.9610 |
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Introduction
The Kawasaki KX250F competition motorcycle returns for 2005 with
several engine and chassis updates, making this championship-winning
motocross bike the envy of the competition.
And the KX250F is indeed worthy of such envy: in its first year
of competition, Team Pro Circuit/Kawasaki/Chevy Trucks racer
Ivan Tedesco rode this four-stroke Kawasaki to victory, clinching
the 2004 AMA THQ Supercross Series 125cc Western Regional Championship.
To help keep the KX250F on the leading-edge of such exhilarating
power and performance, Kawasaki engineers began by making refinements
to the engine. The liquid-cooled 249cc four-stroke engine has
improved low and mid-range response courtesy of a modified intake
port, a straightened exhaust port, and revised ignition timing
for improved top-end and over-rev performance.
To help maintain an optimal performance temperature, the radiators
are 40mm longer for improved cooling efficiency, and the throttle
cable is revised for smoother operation to enhance rider control
of the broad four-stroke powerband.
The KX250F's quick-shifting five-speed transmission is improved
with stronger third and fourth input gears, and the clutch friction
plates now have fewer friction elements to provide the rider
with a more direct feel. The stainless steel clutch cable and
cable liner are changed for smoother operation, and a new clutch
adjuster is added to the lever perch, making rider adjustments
on the track quick and easy.
The KX250F chassis and suspension are also improved. The head
pipe wall thickness is increased for improved handling and the
48mm inverted Kayaba forks have new, low-friction seals for smoother
action. The fork mounting bolts have also been moved on the top
triple clamp for easier maintenance.
The KX250F's high-performance disc brakes are stronger than ever
and feature new front brake pad material for enhanced performance,
while a new front brake lever provides the rider with better
feedback.
Changes to rider accommodations include new footpegs that are
wider and offer better grip; a new seat cover with high-grip
top for sitting while cornering and smooth sides for transitioning
from sitting to standing; and wider handlebar mounts to help
prevent bending.
Those who race their KX250F at designated events are eligible
to receive support from Team Green™, Kawasaki's amateur
racing support program. Each year, Team Green provides regional
support vehicles and highly trained technicians at more than
100 events, offering technical information and assistance to
those who race Kawasaki products. Kawasaki also offers a comprehensive
contingency program for amateur and professional riders who place
well at designated events.
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Features
Engine
- Straighter exhaust port, and extended ribs in both the intake
and exhaust ports improve low to mid-range response
- Throttle barrel utilizes new low-friction design for improved
rider control and performance feedback
- Revised ignition system timing improves top-end and over-rev
performance
- Rev-limiter changed to spark drop out control for smooth power
drop-off and excellent over-rev characteristics
- Radiators are 40mm longer for improved cooling efficiency
- Water pump cover and oil filter cap are now separate for simplified
mainten
ance.
- Muffler features new packing and construction for longer service
and increased durability
Transmission
- Third and fourth input gears are shotpeened for improved reliability
and durability
- New clutch friction plates have fewer contact pads to provide
the rider with a more direct clutch feel
- Clutch springs are made from new, more durable material to
resist sagging
- Clutch adjuster makes adjustments on the track quick and easy
- Clutch cable outer liner now made of Teflon for smoother clutch
action
Chassis
- Head pipe wall thickness has been increased from 2.6 to 3.2mm
for improved handling
- Footpegs are wider and offer better grip
- Chain guide roller now uses two bearings for greater durability
Front Suspension
- Kayaba semi-sealed, 48mm inverted cartridge forks have new
low-friction seals for smoother action through the stroke range
- Fork mounting bolts have been relocated on the top triple clamp
for easier maintenance and stronger mounting
- Lighter fork and rear shock mounting bolts contribute to reduced
overall weight
- Width of handlebar mounts have been increased from 90 to 98mm
to help prevent bending
Brakes
- Dual-piston 250mm front disc brake uses new pad material for
improved performance and rider feel
- New front brake lever provides rider with better feedback
Bodywork
- New seat cover uses high-grip top for good grip when cornering
and smoother sides for transitioning from sitting to standing
- More durable urethane foam improves comfort and durability
Kawasaki Options (Available Through Kawasaki Dealers)
- Aluminum and steel sprockets
- Carburetor setting parts
- Front fork and rear shock springs
- Flywheel rotors for altering the amount of engine inertia to
suit riding style and track conditions
- Right handlebar-mounted lever allows manual operation of engine
decompression, making it easier to clear a flooded engine
- 20-inch front wheel
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Technical Specifications
Engine
Four-stroke single cylinder with DOHC, four valves
Displacement: 249cc
Bore x stroke: 77.0 x 53.6
Cooling: Liquid
Carburetion: Keihin FCR37 with hot start circuit
Compression ratio: 12.6:1
Ignition: Digital AC-CDI
Transmission
Five-speed with wet multi-disc manual clutch
Chassis
Frame: Perimeter style, high-tensile steel with D-section upper
frame rails
Rake/trail: 26.5° / 4.3 in.
Suspension type, front: 48mm inverted, cartridge-type telescopic
fork
Suspension adjustments, front: 16-way compression and rebound
damping
Suspension type, rear: UNI-TRAK® single shock system
Suspension adjustments rear: 16-way compression and rebound damping,
spring preload
Wheel travel, front: 11.8 in.
Wheel travel, rear: 12.2 in.
Tires/Brakes
Tire, front: 80/100-21 51M
Tire, rear: 100/90-19 57M
Brakes, front / rear: Single semi-floating 250mm disc, dual-piston
/ single 240mm disc, single-piston
Measures/Weights
Overall length: 85.4 in.
Overall width: 33.1 in.
Overall height: 50.0 in.
Ground clearance: 13. 4 in.
Seat height: 37.8 in.
Dry weight: 203.9 lbs.
Wheelbase: 58.1 in.
Fuel capacity: 2.0 gal.
Color
Kawasaki Lime Green 
* Price and specifications subject to change
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