Tapsa again thanks for your suggestions.
Re/ the circuit breaker for the primary coil, you locate it low under the distributor below traveler, rotor.
On my 850na (1994) the breaker for the coil "appears" to be the cam position sensor (cps or cmp-- depends). The cpm is a hall effect device located at right side engine rear at the end of the exhaust cam shaft from where is gets its positioning information to pulse the coil to deliver a hi-voltage spark. I have looked and disassembled my distributor to removing the cap & rotor. There appears to be nothing there that would be a Hall effect device.
I can send photos but my main concern is whether or not the cps is the primary signaling device or I'm not seeing something in/ under or affixed to the distributor. Are you certain About a primary Current breaker device being where you locate it in your reply?

Just askin

Also would a bad throttle position sensor TPS prevent a spark? Not run yes, but no spark? I'm guessing no but i'm also out of ideas. It's in a difficult location and the bolts are rusted

Paulfr