With Kawasaki FT engines you can pick up your mowing pace without losing clean cutting power. Newly patented Vortical air filtration (VAF) keeps engines running cooler for longer life and offers reduced maintenance - air filter can go up to 250 hours before replacing. Powered by Kawasaki's open-loop EFI system, the FT instantly adjusts power to load for maximum cutting power at higher speeds and cleaner mowing in heavy, wet turf.