FOR IMMEDIATE RELEASE
1995 KAWASAKI KX250
THE
DEFENDING CHAMP NEVER RESTS
NAME: KX250
DESIGNATION: KX250-K2
POSITIONING: Closed-course racing motorcycle
Not one to rest on its laurels, the 1995
Kawasaki KX250 didn't sit still in the off-season. Like a true winning athlete,
it worked hard to bulk up on muscle and fine-tune its aerobic abilities to stay
one step ahead of the competition.
For
faster starts and blazing corner exits, this muscle comes in the form of a
stronger punch in the lower reaches of the powerband. This feat was
accomplished by juggling the important trio of cylinder internals, carburetion
specs and ignition mapping.
Motocross
racing requires finesse as well as brute power. To further the KX250's ability
to withstand punishing jumps, thread together a tough set of whoops, and rail through the corners,
its steel perimeter frame has been strengthened and its suspension reworked.
Changes to the internals of its front fork and the single-shock rear suspension
improve ride quality to offer fewer distractions to this focused athlete. New
brake pads at both ends and a new rear brake caliper help get things stopped to
change directions.
A
final preparation for title defense came in the way of a new set of duds--
nothing intimidates the competition more than seeing the defending champ with a
bold new look to start the season off fresh.
The
1995 Kawasaki KX250 is now leaner, meaner, prettier, and set to tear up
motocross tracks once again.
1995 KX250 FEATURES: NEW FOR 1995
ENGINE/TRANSMISSION
Cylinder: Exhaust port timing has been changed to
increase midrange and top-end power.
KIPS System:
Valve: One millimeter thicker exhaust port slide valve is now used
to lower the port at low speeds and further boost low-end and midrange power by
effectively increasing the
compression ratio when the valve is closed.
Sub exhaust ports: Six millimeters smaller to boost low-end
power.
Governor: Activation system is now a ball lock
type which activates the valve over a narrower (500rpm) range, for immediate
throttle response from the depths of the stronger low end and midrange. The
governor lever material and thickness has been changed for increased
durability.
Cylinder head: Combustion chamber shape has been revised
to broaden squish area for improved low-end and midrange power.
Compression ratio: The two above changes have netted an
increase in compression which will improve throttle response in the basement.
The variable ratio is now up to 9.0:1 at low speeds and 10.8:1 at high speeds
rather than the previous model's 8.9:1 and 10.4:1.
Carburetor: Two additional float bowl vent hoses have
been added to improve venting and reduce fuel starvation.
Ignition timing: Timing has been remapped to go along with
the above-outlined porting changes.
Coil: New coil sends a spark that lasts twice as long as the
previous unit.
Crankcase: Reed valve is now located four
millimeters closer to the crank to increase crankcase compression for better
low-end and midrange torque as well as improved throttle response. In addition,
the rear engine mount has been beefed up.
Crankshaft: Crank has been rebalanced to reduce
vibration transmitted to rider.
Clutch: New clutch release lever increases stroke
by ten percent for improved clutch feel.
Exhaust system: Expansion chamber is now 100mm longer to
boost low-end and midrange. Plus, more silencer packing equals less noise.
SUSPENSION/CHASSIS
Fork: Fork tubes of the 43mm Kayaba cartridge fork have been
strengthened for added rigidity. Internally, a mid-speed compression damping
valve has been added at the non-return valve. To further prevent bottoming at
the end of the compression stroke, the oil lock piece has been lengthened 10mm
while the taper has been shortened the same amount.
Shock: Two millimeter thicker piston will increase service life of
the shock. To complement fork mods, the shock has been fully revalved.
Shock mounts: Upper mount has been strengthened. Lower
mounting bracket is longer to increase torsional and vertical rigidity for
improved traction and more predictable suspension movement.
UNI-TRAK®arm: Arm offers a more progressive suspension
curve.
Brake pads: Front pads are made from a sintered metal
material with a higher coefficient of friction than last year's. Rear pad
material is changed to increase feel.
Rear brake caliper: Caliper and caliper holder are more rigid
to further increase feel.
Brake pedal: An O-ring has been added to the brake
pedal boss to keep out dust and dirt.
Handlebar: Handlebar is now 7mm lower and the mounting dampers are made
of a new material to reduce vibration.
Seat: New, longer-wearing and firmer (by 6 percent) foam is now
under the cover.
Graphics: An updated graphic treatment compliments
the above changes.
1995 KX250: MAIN FEATURES
ENGINE/TRANSMISSION
¨
Single-cylinder
two-stroke motor
¨
Liquid
cooling
¨
Electrofusion
cylinder
¨
Kawasaki
Integrated Powervalve System (KIPS)
¨
Eight-petal
reed cage assembly
¨
Aluminum
silencer
¨
Digital
CD ignition
¨
Close-ratio,
six-speed transmission
CHASSIS
¨
High-tensile
steel perimeter frame
¨
Aluminum
triple clamps
¨
Powerful
disc brakes front and rear
¨
Fully
adjustable 43mm upside-down cartridge fork
¨
UNI-TRAK®
rising-rate rear suspension
¨
Aluminum
swingarm
¨
Fully
adjustable remote-reservoir shock
1995
KX250 SPECIFICATIONS
Engine........... 2-stroke
single w/KIPS
Displacement........... 249cc
Bore x Stroke........... 66.4 x 72.0mm
Cooling........... Liquid
Carburetion........... Keihin PWK38
Induction........... Piston-reed
valve
Ignition........... Digital
CD
Transmission........... 5-speed
Frame........... High-tensile
steel perimeter frame with bolt-on steel subframe
Suspension, front........... 43mm upside-down cartridge fork with 16-way
compression and rebound damping adjustment
Suspension, rear........... UNI-TRAK®- Single shock with adjustable preload
and 16-way
compression and rebound damping adjustment
Wheel travel, front........... 12.2 inches
Wheel travel, rear........... 13.0 inches
Tire, front........... 80/100x21
Tire, rear........... 110/90x19
Brakes, front/rear........... Disc/Disc
Seat height........... 37.6inches
Dry weight........... 213 pounds
Fuel capacity........... 2.2 gallons
Wheelbase...........
57.5 inches
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