"Chris" wrote in message
. ..
I've heard from some that there are tools at the merc dealers to test
switch boxes, however, when I went to an old merc dealer who tests old
motors he said that there was no way to test a switch box.

Specifically, 70's era switch boxes.

Is this true?


No, a Quicksilver Thunderbolt Ignition analyzer Part no. C-91-62563A1 can
test a switchbox.