How Much Power Does the 2024 Kawasaki KX250 Make?

Dyno testing Kawasaki’s 250F motocross bike for horsepower and torque.

In terms of peak horsepower, Kawasaki’s KX250 has produced some competitive numbers on the dyno since 2020. It’s also been critiqued for a lack of low-end grunt since then, a side effect of the Japanese manufacturer putting so much emphasis on high-rpm power.

What hasn’t changed over the years (even prior to 2020) on the quarter-liter green machine is its light-feeling engine character and quick throttle response. In the case of the 2024 model, Team Green’s 250cc four-stroke motocross bike cranks out 41.0 hp and 18.7 lb.-ft. of torque at the rear wheel when run on our in-house Dynojet 250i rear-wheel dynamometer.

“I like the linear feel of the KX250′s power, but it could use some more overall grunt to put it as a front-runner in the engine department,” test rider Michael Wicker said. “Also, its EFI map changing system is outdated with the couplers.”

2024 Kawasaki KX250 Dyno ChartRobert Martin

2024 Kawasaki KX250 Engine Specs

Engine Type: DOHC, liquid-cooled, four-stroke single-cylinder; 4 valves/cyl.
Displacement: 249cc
Bore x Stroke: 78.0 x 52.2mm
Compression Ratio: 14.1:1
Fuel Delivery: Electronic fuel injection w/ 44mm throttle body