Re: Vacuum cutout switch question

[JACQUES]

is the safety feature working currently defective or are you just in the process of figuring how it works ??

pulling back on the throttle means….. dropping the speed down ??

if so and if the mercury switch does becomes OPEN does it matter ? since the RPM will be dropped down to a safe level (no need to kill the bottom cyl by vacum switch grounding out the ignition cct. ??)

presumably being at a lower RPM this would cause the vacum switch to be OPEN itself (not grounded)

Sounds like the the lower cyl cut-out feature is the result of a logic AND condition requiring 2 things

HIGH VACUM FROM OVERREVING (ground) + HIGH THROTTLE POSITION (Mercury switch continuity to the ignition cct.)

OK done… now I will go read up on it

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