onan Microlite no spark

I have an Propane fired Onan microlite 2.5kvfa26120D. With No spark. Have determined there is no spark. Plug is good, The spark coil has been replaced and still no spark. The Resistance measurements of the coil and magneto are what the shop manual says it should be. However I do not get the 50-60 volts off of the magneto when it is cranked. The unit is out of the Camper now. I have eliminated oil shutdown switch as a problem. The description of the magneto says that one coil charges a capacitor and the other discharges it. Where is this capacitor?? I suspect either it doesn't exist or that it is on the control board. But it is not shown on the schematic