Fuel filter change video. Easier to watch than type. Use line wrenches. so you dont strip the fuel line. ALWAYS put a second wrench on the filter housing so you dont damage that attempting to loosen the fuel line.

https://www.youtube.com/watch?v=WK0sqMI6mMs




When you push the gas pedal to the floor the choke plate should snap closed. You will see the plate close up and probably hear it. This is on a stone cold engine... If on a cold engine that choke plate is not nearly all the way closed up, it may need some adjustment. I recall that coach came from Meeshigun. Climate being somewhat similar I would be surprised if it wasn't correctly set up.