A worn dime was the feeler gauge of choice among most old time mechanics..

If you rubbed it on the contacts,the silver on the dime would transfer to the contacts and often cleaned them up enough to get spark back again..
The condensor plays an important role in a points type ignition..
Though some engines can run without one connected,the ignition coil needs the condensor to allow its magnetic field to collapse rapidly enough to create a strong healthy spark--it also keeps arcing at the point contacts to a minimum too..
My first job at a small engine shop was short lived thanks to a condensor..the boss handed me a Kohler cast iron engine in a box in a hundred pieces and said "here--let's see how good you are--put this together and get it running as quickly as you can.."
Assembling the engine was no big deal,it took me about an hour..
But the thing refused to start--all it wanted to do was spit back thru the carb or backfire,or run only a few seconds,then flood..
I swapped another carb onto it and it did the same thing..
I then took the engine back apart thinking maybe I misaligned the timing marks,but nope,I had taken care to get them lined up and that was not the issue...
I spent two days trying various things and still could not get the engine to run more than a few seconds..the boss was pissed,kept glaring at me asking "haven't you got that thing running YET ?"..
The next morning I was a few minutes late--boss met me at the door,and said "come here--want you to see this"..
The other older mechanic pulls the rope and the engine fires right up and runs perfectly..
"You did assemble it correctly--but you forgot the condensor"!,he says..
I had only messed with magnetos in shop class,wasn't that familiar with a 12V coil & points with condensor ignition system,but I should have remembered the condensor..

..
The boss then handed me a check and a $20 bill and said "I don't think your going to work out here Bob--you live too far away,have been late too often,and you still need some more experience"..

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....he was a prick anyways..was kind of glad he fired me..
