1972 100HP Johnson Switch

[F_R]

Re: 1972 100HP Johnson Switch

The plug colors is simply a matter of evolution. As the electrical systems changed on the motor, the wiring had to be changed. In order to use the same type of plug, but connected differently, they identify them by color. The colors have to match, or the wires won't be connected correcly.

 

[rumads]

Re: 1972 100HP Johnson Switch

OK gang...I've finalized my decision and have found the switch. The vendor is going to send me a picture of it to ensure that it is indeed the right part. I know we have talked about alot of things about the electrical issues and plug colors and what not. Since I'm only replacing the switch can someone again please assure me on exactly what I should be looking for to ensure that I'm not throwing away money because of ignorance on my part. Should I be concerned about the wire colors attached to the switch, the color of the wires. Any information would be great. Thanks again for all the expanded knowledge.

 

[rumads]

Re: 1972 100HP Johnson Switch

when you all are referring to plug color can you identify what I am looking for when you say plug...are you referring to the color of the switch. Please also read information above so I can finalize the deal if indeed it is the right one.

Nate

 

[F_R]

Re: 1972 100HP Johnson Switch

Right now I am wondering just what the heck you are looking for. You started out looking for a 385253 shift switch and suddenly we are talking about a whole remote control and wiring harness. You want a SHIFT SWITCH, right? The plug is the round plug where the control cable plugs into the motor. Only matters if you are looking for the whole control.

The 385253 shift switch has a blue wire, a green wire, a couple of purple-with-green stripe wires, and a couple of white wires. If you buy it by part number there should be no problem. If you are buying an unknown switch in hope of making do, look out. There are at least 3 switches that look alike. If the wires are coded as I just said, you should be ok. I think.

 

[rumads]

Re: 1972 100HP Johnson Switch

that is correct I'm only looking for the shift switch. I stated that I may be interested in the whole remote control but its bad enough trying to find the switch for this unit and then go and try to find the whole remote. The guy that is selling it to me stated that he will send pictures and then I can make sure that its the right one before I purchase the actual part. He didn't actual have the part but had an old Hydro electric remote that he was willing to part out thus I thougth I'd make sure I know what I'm looking for before I bought it. I will look to make sure the wiring it the right colors. Thanks.

 

[rumads]

Re: 1972 100HP Johnson Switch

I have finally found a switch and installed it. Question. I have five wires, purple, blue, green and two whites. One white goes to the key switch and the other goes out the remote control and appears to go to the back of the boat. I may be wrong. Anyways what happens if i cross the white wire. Unfortunately I don't have a wire diagram for the switch and the switch that I got was not look exactly the same but had all the right colors of wires and came in the brand new box with the right part number. Does anyone have the wiring diagram? Below is my information. Thanks.

1972 100HP Johnson Outboard
Motor Model: 100ESL72R
Motor Serial Number: J3701388

 

[Phyreman]

Re: 1972 100HP Johnson Switch

Unfortunately the wiring diagrams in the book, don't help much. One diagram have wire color listed, another doesn't, we r working on coinciding them, you are welcome to a copy when we r done. My best guess on the white wires is that it shouldn't matter in what position they are b/c:

1. If it mattered, there would have been 2 different colors and
2. The wires are to insure that the motor is started in neutral and not in gear. I have my broken Switch and cable assembly out and it looks as though the connection is complete in neutral, but not others.

Hope that helps. I'm waiting on a new switch myself. Almost bought a 3 wire (G,B,P) and considered direct connecting the whites, but I thought again and don't want to chance starting the boat in gear, or have the starter accidentally reengage. Besides, there's a reason that it's set up the way it is.

 

[jopickens]

Re: 1972 100HP Johnson Switch

1972 100HP Johnson Outboard
Motor Model: 100ESL72R
Motor Serial Number: J3701388

I was given a '72 glastron with the 100ESL72R engine. Much of what I see online while in search of manuals and various parts reference it without the 'R'. Is there a differenence? 100ESL72R vs 100ESL72
Thank you,
Josh
Grafton WV

 

[F_R]

"R" indicates any mid-year changes--IF there were any changes. Now let's put this six year old thread back in the archives.

 

[GA_Boater]

Closed.