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Motorcyclespecs KDX250 sheet (1981-82): 70 x 64.9 mm (249 cc), air-cooled reed-valve two-stroke, 36 mm Mikuni, 33 hp @ 7,000 rpm and 3.5 kgf-m (34.3 Nm) @ 6,500 rpm (not stated as claimed or measured), 111 kg dry, 12.5 L. Motorcyclespecs' seat height (935 mm) and wheelbase (1,475 mm) are identical on its 1981-82, 1983-85 and 1990-92 KDX250R pages, a sign of copied figures, so they are not used. Cycle World's 1982 test: almost everything new except the wheel hubs, an all-new reed-valve engine (8.2:1, 36 mm carb) and a six-speed gearbox; kick start; 3.3 gal tank; its price reads "$1979" in garbled text, so MSRP is left null. No US MSRP found.