Stilh Saw won't shut off - need help

[bob]

I'm fixing a Stihl TS420 chop saw. It won't shut off with the switch. I did a
continuity test. See photo. When the saw is in the run position, I get no current to the meter . When the saw is in the stop position, I get current. Not sure what to. I don't what to keep choking it out to shut it down.

[piston slapper]

The kill cicuit in the coil isn't working. Replace the coil.
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[StihlMechanic]

as long as youre sure the switch has continuity when in the off position (to ground out the coil and kill fire) then the problem lies with in the coil. This is pretty uncommon but have seen this with the TS chopsaws more so than other stihl handhelds. Make certain before buying a coil, as you would expect, they aren't cheap.