Intermittent firing

[chrism]

"1982 e140 v4,#1 plug stops fi

"1982 e140 v4,#1 plug stops firing intermittently.starts again after minute or two.switched powerpack from port bank,still same.thinking stator or coil?verified electrical misfire with timing light.when starts firing again,runs like a raped ape!can run all day sometimes and never show up"

 

[not-a-student]

"How about the connecter pins

"How about the connecter pins in the powerpack plugs, are they all making good contact? Tried switching the coils ( by switching pins )to isolate the possible bad one??Tested sensor coils??"