1994 Johnson 120v4 tach?

mike stallings

Recruit
Joined
Oct 23, 2007
Messages
4
i bought a procraft 1660v and the tach doesn't work. does anyone have a wiring diagram for this motor so i can try to get my tach to work? thanks
 

HighTrim

Supreme Mariner
Joined
Jun 21, 2007
Messages
10,486
Re: 1994 Johnson 120v4 tach?

Here is a diagram for the tach.

tach wiring 2.jpg

You may also want to refer to you manual to test the regulator, or Joe Reeves advice from the FAQ here on iboats.
 

Chris1956

Supreme Mariner
Joined
Mar 25, 2004
Messages
27,036
Re: 1994 Johnson 120v4 tach?

Mike, Does that motor have the water cooled voltage regulator mounted behind the flywheel on top of the cylinders? If so, the grey wire is the source of your tack signal. make sure that the regulator and the tach get +12VDC on the purple wire when the ignition key is in the run position. Make sure there is continuityfrom the tach to the grey wire on the Voltage regulator. make sure the Tach has ground as well.
 
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