Kawasaki KX250

The Kawasaki KX250 appeared in 1974 and was produced until 2008. The first versions of the motorcycle were produced for the American market, but since 1988 the model has also become available in the markets of Europe and Japan, and since 1990 in Australia.

Lineup:

• Kawasaki KX125
• Kawasaki KX250

The main competitors:

• Honda CR 250 (aluminum frame)
• Suzuki RM 250 (steel frame)
• Yamaha YZ 250 (aluminum frame)

A total of 13 generations of the Kawasaki KX250 have been released, but the most interesting versions have been since 1990, when the model was equipped with an inverted fork. In our review, we will consider a model starting from the 9th generation, namely modifications from 1992. Older versions of the motorcycle are very rare and are practically not represented on the Russian market.

The main features of the Kawasaki KX250 are a steel frame, sports adjustable suspensions, a powerful 2-stroke liquid-cooled engine with KIPS power valves, disc brakes, a 5-speed gearbox and 97 kg dry weight.

In 2004, a 4-stroke version Kawasaki KX250F appeared to replace the 2-stroke KX250. However, despite this, both modifications were sold in parallel until 2008 inclusive, after which the Kawasaki KX 250 was finally discontinued.

The "younger" model is Kawasaki KX 125.

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Specifications

Specifications Kawasaki KX250 (KX250J-R, 1992-2008):

Model	Kawasaki KX250
Motorcycle type	cross
Release year	1974-2008
Frame	steel half-duplex
Engine type	1-cylinder, 2-stroke
Working volume	249 cm³
Bore / Stroke	66.4 x 72.0 mm
Compression ratio	10.9: 1 (low rpm), 9.3: 1 (high rpm) - KX250-J 10.3: 1 (low rpm), 8.8: 1 (high rpm) - KX250-K 10.8: 1 (low rpm), 9.0: 1 (high rpm) - KX250-L 10.1: 1 (low rpm), 8.6: 1 (high rpm) - KX250-M1 10.5: 1 (low rpm), 8.8: 1 (high rpm) - KX250-M2 10.5: 1 (low rpm), 9.1: 1 (high rpm) - KX250-R
Cooling	liquid
Number of valves per cylinder
Fuel supply system	Carburetor, 1x Keihin PWK38 - KX250J-K Carburetor, 1x Keihin PWK38S - KX250L-R
Ignition type	CDI
Maximum power	53.6 hp (39.4 kW) @ 8500 rpm - KX250-J 53.6 h.p. (39.4 kW) @ 8000 rpm - KX250-K 54.6 h.p. (40.1 kW) @ 8500 rpm - KX250-L
Maximum torque	49.0 Nm (5.0 kg * m) @ 7500 rpm - KX250-J, KX250-L 49.0 Nm (5.0 kg * m) @ 7000 rpm - KX250-K
Gearbox	5-speed
Drive type	chain
Front tire size	80 / 100-21 51M
Rear tire size	110 / 90-19 62M
Front brakes	1 disc, 220 mm, 2-piston caliper - KX250J-M Single disc, 225 mm, 2-piston caliper - KX250-R
Rear brakes	1 disc, 190 mm, 1-piston caliper - KX250J-L 1 disc, 200 mm, 1-piston caliper - KX250-M Single disc, 215 mm, 1-piston caliper - KX250-R
Front suspension	Inverted Fork (Adjustable), 310mm Travel - KX250J-L Inverted Fork (Adjustable) - 300mm Travel - KX250M-R
Rear suspension	linkage Progressive Uni-Trak with monoshock (adjustable), stroke - 330 mm - KX250J-L linkage progressive Uni-Trak with monoshock (adjustable), stroke - 310 mm - KX250M-R
Motorcycle length	2185 mm - KX250-J, KX250-R 2155 mm - KX250-K 2175 mm - KX250-L, KX250-M
Motorcycle width	815 mm - KX250J-L, KX250-R6F + 825 mm - KX250-M1 840 mm - KX250-M2, KX250-R1
Motorcycle height	1215 mm - KX250J-K 1210 mm - KX250-L 1205 mm - KX250-M1 1265 mm - KX250-M2, KX250-R
Wheelbase	1490 mm - KX250-J 1460 mm - KX250-K 1480 mm - KX250L-R
Saddle height	955 mm - KX250J-K 950 mm - KX250-L 945 mm - KX250-M 965 mm - KX250-R
Minimum ground clearance	385 mm - KX250J-K 380 mm - KX250L 355 mm - KX250-M1 340 mm - KX250-M2, KX250-R
Acceleration to 100 km / h
Maximum speed
Fuel tank capacity	8.5 L - KX250J-L 8.2 L - KX250M-R
Motorcycle weight (dry)	96.5 kg - KX250J-K 97 kg - KX250L-R
Motorcycle weight (curb)	102 kg - KX250J-K 103 kg - KX250-L 101 kg - KX250-M 101.6 kg - KX250-R

Documentation

• Kawasaki KX250