HOWEVER a typical generic 2 terminal Ignition On/Off key switch is a NORMALLY OPEN SPST (Single Pole Single Throw) configuration. In OFF theres no connection between the 2 terminals and when On theres is. One input terminal has hot battery voltage and the other output terminal is hot ONLY when shes switched to ON (to power the coil),,,, BUT THATS KIND OF THE OPPOSITE NEEDED FOR A MAG GROUNDING KILL SWITCH.
To turn a mag ignition on or off, you run a wire up from the mags kill terminal and rig a switch so that when ON theres no connection to anywhere for that wire, but when OFF theres a connection to frame ground (a ground on the kill terminal kills the spark).
NOWWWWWWW if you had a regular On/Off SPST Ignition switch with one switch terminal to the mags kill terminal and the other switch to frame ground, it would run when OFF but stop when ON SEE THE PROBLEM I guess you could re label the switch ON where off was and OFF where on was but it woukld be bass ackwards and counter intuitive
NOTE they do make some lawn/garden tractor On Off key switches designed to kill the small engines mag when OFF by giving it a ground in the OFF position, thats the kind of switch you need, one designed for magneto operation.
Of course, an electronics supply shop will have some sort of key switch that has an extra terminal or that you can utilize to give the mags terminal a to ground connection and the older farmall push pull switches could be rigged
Now that you hopefully understand how a mag switches to be on with no ground at the kill terminal but off when theres is a ground there YOU OUGHT TO BE ABLE TO RIG A SWITCH OR USE A LAWN GARDEN TRACTOR SWITCH
Got it??????? Im headed to the Norman Station Indiana Bluegrass festival to pick n grin at the old banjo woooooooo hooooooo
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Today's Featured Article - The Fordson F Ignition System - by Anthony West. A fellow restorer contacted me earlier this year asking for some help and advice on a model F that he was restoring. He had over a period of months spent a fair amount of his hard earned cash on replacement parts for the old "trembler" ignition. Sadly though all his efforts seemed to be a waste of time and money as he still couldn''t get the temperamental old thing to run correctly!! If i said that this was a little frustrating for him that would be "conservative" in fact the problem had reduce
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