I assume that you have an EFI Yamaha engine on your mower. I mow 3 acres plus or minus. And, one gallon of gas would never come close to mowing my entire yard with any mower that I’ve owned.
My new Gravely ProTurn 260 with Kohler ZT740 is a series above my former Pro Turn 160 with Yamaha MX800V. The Kohler engine burns less fuel than the Yamaha. Both machines are carbureted engines.
Regardless, that particular Yamaha MX800V was a Dud.
