interlocks

I have no spark to the spark plugs. I have changed new spark plugs, checked the fuses in the black box attached to gen and are all good. Appears lots of interlocks on these gens which I am not familiar with and maybe one of these may be the culprit . Any help is highly appreciated to get this...

I am new owner of a 2003 Sundancer 320, 350 MPI's V-drive. Kohler Gen quit working right after I bought it. Gen mechanic claims it is not getting fuel or bad fuel from the tanks. He says there is no filter or anything upstream from the tanks. I would think there should be a fuel strainer/...