The UMK425 is powered by Honda’s new Generation II GX25 Mini 4-stroke engine. Less Fuel and more power are two of the great features of Honda’s Generation II Brushcutters. Boasting the latest in Honda’s ultra-compact, lightweight, 4-stroke engines, Honda’s new UMK425 Bruchcutters pump out superb power and more torque than ever before. And as you’ve come to expect from a Honda, they start first time, every time.