Old School Engine Driven Welder Loses RPM When I Strike an Arc.

   / Old School Engine Driven Welder Loses RPM When I Strike an Arc.
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#11  
The kill switch is on the points cover. I doubt that is what the little silver knob is for. I do find out that the silver knob is some kind of plunger switch. When I pull on it it comes out.

Here are a few more shots if the machine.
 

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   / Old School Engine Driven Welder Loses RPM When I Strike an Arc. #12  
Howdy, the white button (above left pic) is the kill button (grounds the points)
Every gas or diesel welder I was ever around would have an "exciter" that would increase the rpm of the engine produceing more power. Trace back the part in question. Usually a solonoid to move throttle linkage.
Maybe it has a compression release for starting in the cold. HTH, JoeB
 
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