2020 Yamaha YZ250F Dyno Test

How much power does Yamaha’s 250 four-stroke motocross bike make in 2020?

Video By: Bert Beltran

The 2020 Yamaha YZ250F has a starting suggested retail price of $8,199 and is available in Team Yamaha Blue and Gray. Powering this Japanese motorcycle is a liquid-cooled, DOHC, four-valve, 250cc four-stroke engine.

We ran the YZ250F on our rear-wheel dyno to determine peak output from Yamaha’s 250 four-stroke motocross bike. We documented 38.2 hp at 12,500 rpm and 18.5 pound-feet of torque at 8,500 rpm.

2020 Yamaha YZ250F Dyno Chart
2020 Yamaha YZ250F Dyno ChartRobert Martin

“The engine on the 2020 Yamaha YZ250F is incredible! It has a lot of initial hit and is very fast revving with a quick throttle response. The power starts to fall off higher in the rpm, so you have to make sure you shift on time.” —Tanner Basso

2020 Yamaha YZ250F Engine Specifications

Type Liquid-cooled, DOHC, four-stroke single-cylinder; 4 valves/cyl.
Bore x Stroke 77.0 x 53.6mm
Displacement 250cc
Compression Ratio 13.8:1
Fuel Delivery Electronic fuel injection
ADVERTISEMENT