Reply To: 1959 Evinrude 35 hp

[Mumbles]

There should be two mercury switches on your motor if it’s electric start. One of them prevents the starter from working  if the throttle is open too far. The other one is wired into the vacuum cutout switch circuit which prevents the motor from running away or over revving with the throttle closed.

If you are adventurous and like to live on the edge,  you can either bypass them or  remove them altogether, especially if they don’t work anymore.