Small Engine Troubleshooting Problems? Ask a Mechanic Now.
Hi, my name is***** will be assisting you.
You indicated that you have charged the coach battery so I am to assume that this is in an RV. Take a closer look to make certain that the genset doesn't have its own battery separate from the coach battery. I ran into this a few months ago and there was a separate battery compartment for the genset. It was located just in front of the drivers side rear wheel in a small compartment with a hinged door to the outside.
Can you turn the engine over manually by hand?