Technically there is no way that I know of. However, there is a way to
verify all the signals coming into it are there and if the spark is there.
If all inputs are right and no output then you have verified the switchbox
is bad.

--
Tony
my boats and cars at http://t.thomas.home.mchsi.com

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"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?