How do you bleed gas lines on 18hp kawasaki?

To bleed gas lines on an 18hp Kawasaki engine, first ensure the fuel shut-off valve is open. Then, locate the fuel filter and loosen its fittings slightly to allow air and fuel to escape—be prepared for some fuel spillage. After a few moments, tighten the fittings back up. Finally, crank the engine briefly to help push any remaining air out of the lines; it should start and run smoothly if bled properly.