[Rich Biebel]

Has the unit sat around not used for a while? Is there any debris laying around or on the unit? Mice like to nest in those units. They almost always find there way up inside the generator end. If it has solid state ignition ( no points) there is a plastic rotor device attached to the end of the crank. It triggers the spark as it passes a fixed pickup. All this stuff is inside the generator end and it is very common for that plastc rotor to break from hitting a mouse or the nest material. Coils don't go bad often on most Onans. If it has points they are in a little box on the top of the unit but I think from the year you describe it has solid state ignition. There is now way to work on these properly without removing them from the MH. I use a forklift or just floor jacks...........