I wasn't aware of the fuel pump problems with the Yamaha WR250 bikes. Thanks for posting that information.
I'm very glad the Zongshen engineers set up the fuel gauge as they did.
I have ridden extensively in remote areas of Idaho, Nevada, Utah, Wyoming, and Montana. Fuel stations are few, and far between in many of the remote areas of these states, especially after normal business hours. When riding long distances in wilderness areas, I plan ahead for fuel stops, and I never pass up a gas station.
However, I have discovered a 200-mile range on the main fuel tank is sufficient when combined with a 1-gallon reserve tank.
To extend the life of the fuel pump, I intend to fill the fuel gas routinely before 200 miles, and only travel on reserve fuel when absolutely necessary. In rare circumstances, one can easily carry extra fuel on top of, or inside the panniers, et cetera.