1989 Evinrude 25 hp wiring help

[goblerblaster]

I bought a 1989 Evinrude with remote start that was set up for stick steering and remote key start. All the wires were disconnected from the back of the key so the wiring harness could be removed. There are screw terminals on the back of the key but none are numbered. I cannot figure out which wires go to which terminal on the key switch. This key is the kind you push in to prime or choke the motor. The wiring harness has more wires than there are terminals on the back of the key. Anyone got a wiring diagram and a "key terminal code" for where to put them that they can share with me?? Also, where do the hot wire and ground wire from the battery attach under the cowling? Thx for any help.....

 

[kbait]

Search here for wiring diagrams

Top Secret File (UPDATED 7/13/2017)

Disclaimer iBoats has no control over external links contained in stickies and to be aware that links are fluid and may or may not work. This Is Under Construction. just click and get the answers. these are suggestion, NOTHING beats the OEM manuals!!! Classic Johnson/Evinrude service...

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[Crosbyman]

this 83 print is not your 1989 but it gives you the basics

Batt +12 goe to B
YEL BLak & BLk are kill wires to M
C is choke push to start like yours
S is START or SELENOID power to turn the starter

 

[goblerblaster]

Thanks, this will help a lot !!

 

[Crosbyman]

let us know how it all works out

 

[goblerblaster]

Well. on closer examination my switch does not look like the one in the diagram. I am attaching a picture of the back of my key switch so hopefully someone can identify which terminal is for which wire and let me know. There are no markings on the terminals.

 

[Crosbyman]

I clearly see letters stamped om the edge....go with that

A=Accessories M Magneto

can'T see others due to angle.....look for B for B+ battery 12v

etc...

otherwise use a VOM to test contact configurations in various states

ex: B+ to A 0hms while ON
B+ to S 0 ohms when starting
B+ to C 0 ohms when choking etc...

 

[goblerblaster]

All letters say "M" or "I" only 3 three letters are stamped. There are 6 terminals There are 2 "M's" n one "i"

 

[Crosbyman]

what about the A letter I see....regardless you have few options

If you are handy measure with a VOM to determine each function

BTW... thisinfo is for assistance but may be different on your switch .but the basics are there
for you to trouble shoot and reconnect the wires.


look for other letters closely you found the 2 M for magneto
you have the A for accessories (see left arrow)

the rest should be

S selenoid -start (unmarked here between M&C) one will be C (choke) and one is B for 12v

 

[Crosbyman]

continuousWave: Whaler: Reference: Electric Starting

Electric starting circuits for outboard engines

continuouswave.com

continuousWave: Whaler: Reference: Ignition Switch

Description and schematic diagram for wiring for typical outboard engine ignition switch, particularly OMC or BRP.

continuouswave.com

more info

 

[goblerblaster]

Crosbyman. Can you draw on the picture of my switch which letters coordinate with the terminals? I havew looked at this switch with a magnifying glass and only see 2 "M" and one "I" Thx for your help

 

[Crosbyman]

do you not see letter A pointed to by the left arrow ???

 

[Crosbyman]

one wire is CHOKE so touch 12v on it to hear the choke pull up

One wire is Start/selenoid so touch 12v on it to hear the starter going

accessories connect to the A post

FROM A with a ohm meter find the B+ post which is the ONLY one connected to A with the key at the ON position see diagrams above

after finding A ... find the " other post " internally joined (connected) to B+ when pushing the key to CHOKE that will identify the C post (Choke) see diagram

 

[Crosbyman]

switch designs can vary so you need to physically establish the switching desing pattern and connect proper wires to each screw post.

sorry can't do much more at this end.

 

[goblerblaster]

Thank you --- very helpful information !!

 

[Crosbyman]

found the A post ???

 

[goblerblaster]

Yes, I cleaned off the back of the switch and got my young eyed wife to look.. 2 "M" terminals, one 'C" in the middle, one "I" and 1 "A".. Thx for all your help !! Eye Dr appointment has been Scheduled

 

[goblerblaster]

Actually I said it wrong the "I" is Actually the "A" and the other one is a "B" 2 "M" and one "C"

 

[Crosbyman]

you need a post for starting/selenoid ....