Onan generator problem

Ok guys, thanks for the input. I got the problem fixed (at least temporarily). Turns out it was a "stuck" starter/bendix. With a good bit of difficulty I got a 9/16 socket and ratchet on the flywheel and really had to strain, but moved it an inch or so which was enough to break it loose. After that, it turned over just fine and fired up. Although my owners manual says to only prime it when it has run out of fuel I am going to prime it next time I try to start it cold and see if it starts better. It is supposed to get really cold next week so I wanted to have some backup if the power goes out. Thanks again and hopefully this will help someone in the future.