Shift Interrupt Switch - 1989 200 Johnson

chefboyrdjr

Seaman Apprentice
Joined
Feb 20, 2010
Messages
34
Good afternoon all! Got my old 200 running pretty good, thanks in part to some help here. Got one nagging issue... How does the shift interrupt switch work? I understand from reading on here it prevents 3 of the 6 cylinders from firing during shifting... is this correct? Is it supposed to only do this for a breif moment during the shift from forward to nuetral? The problem I am having is that when you turn the key switch to the off position it only shuts down 3 cylinders....engine continues to run on 3.... seems like i got something hooked up wrong in the stop / shift interrupt curcuit.. CRAZY old thing>>> First it wont run>>>>> Now it wont stop>>>>> Any ideas?
 

ezeke

Supreme Mariner
Joined
Sep 19, 2003
Messages
12,532
Re: Shift Interrupt Switch - 1989 200 Johnson

The problem is that there are two black and yellow kill wires on your powerpack, one for each side of the powerpack.

The shift interrupt uses the same circuit but there is a blocking diode in the harness to prevent it from disrupting normal operation.

You will need to determine which three cylinders are continuing to operate, then verify that the kill wire for that side is still connected through to the harness. There should be bullet connectors for each side.
 

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