Johnson 35 super seahorse, wiring

android2001 · Jul 22, 2004

I am trying to install a new ignition switch on this very old 1950's engine. The problem is I can't find a diagram for it. I bought the Clymers book 1959-1972 however, it doesn't seem to be in it. Any ideas? s/n 1903427. I am on my second switch, but I don't think it will work either. The "M" and "G" are closed with the switch in off position. I think these are the stator wires and should be closed in the ON position. Any ideas where to get the right switch... Andy

Paul Moir · Jul 22, 2004

Re: Johnson 35 super seahorse, wiring

I'm not sure if your engine actually has an 'off'. If it does there will be two wires coming down from the magneto (armature) plate up underneath the flywheel besides the two spark plug wires. If you have those wires, then they should ultimately connect to the M and G terminals on your switch. That is to say, those two wires need to be shorted together to stop the engine. It doesn't matter which wire goes to which terminal. If you only have one wire coming from the armature plate, ultimately it should connect to the 'M' terminal. Then connect the G terminal to engine ground. This only kills spark on one cylinder, so it'll take a while to completly stop the engine. If you don't have either wire (you slow the engine to stop it), and you would like to add them, they simply connect to the screw terminal on each point underneath the flywheel.

Joe Reeves · Jul 22, 2004

Re: Johnson 35 super seahorse, wiring

There would be no stator in a old 1950s engine. What is the model number of the engine? The serial number doesn't tell us anything as to the year or horsepower. What are the color of the wires, and what are the terminals marked on the back of the switch? Is this a electric start engine, does it have a generator?

android2001 · Jul 25, 2004

Re: Johnson 35 super seahorse, wiring

this would be a RDS 21-B 35 HP Johnson, another source I looked at said it was a 1959 model engine. No generator as far as I can tell. White case with the gold crown on top. Andy

android2001 · Jul 25, 2004

Re: Johnson 35 super seahorse, wiring

this would be a RDS 21-B 35 HP Johnson, another source I looked at said it was a 1959 model engine. No generator as far as I can tell. White case with the gold crown on top. Andy

Porto · Jul 25, 2004

Re: Johnson 35 super seahorse, wiring

I'm not trying to hijack this post, but I have the same question about my 1958 Johnson super seahorse 35 hp. (model #RDS20). I have 6 wires coming from the ignition box to the ignition switch. 2 black, 1 red, 1 white, 1 green and 1 brown ( I have no generator on my motor). The ignition switch I have is not original to the ignition box. The ignition switch only has 4 screws on it, will it work? The 4 screws are "labele S, I, A, and B. Thanks......

Joe Reeves · Jul 26, 2004

Re: Johnson 35 super seahorse, wiring

Android... You have a 1959 35hp Johnson. We still need to know what the terminals are marked on the back of the ignition switch, and also what color the wires are that will be attached to them. Porto... That switch will not work with your engine.

Porto · Jul 26, 2004

Re: Johnson 35 super seahorse, wiring

Can I wire a button instead of a switch? If so, What wires would go where? If not, is the right switch available?

rwise · Jul 26, 2004

Re: Johnson 35 super seahorse, wiring

The ignition switch should have 2 terminals marked "M" these terminals wire to the points and when the switch is turned off (or the button is pushed)(or lanyard pulled from switch) it makes the circut and kills the engine by shorting the points together. The wires existed on mine some may have to add them and both were black. Richard

Porto · Jul 27, 2004

Re: Johnson 35 super seahorse, wiring

Okay, I think I figured out the brown wire is for a gen., the red wire goes to the choke and the black wires go to the points. The green and white wires go to the solenoid. If this is right, will this switch work for my motor? http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&rd=1&item=2485287141&category=31284

NES · Jul 27, 2004

Re: Johnson 35 super seahorse, wiring

Porto.... Get a continuity tester (multi-tester/volt meter) and toy with the switch until you figure out what key position gives you juice to what post. Then match to your needs. The only problem you may have is the switch corroding too fast in the marine environment.

Paul Moir · Jul 27, 2004

Re: Johnson 35 super seahorse, wiring

That's the right type Porto. Except instead of connecting one of the 'M' terminals to ground as indicated on the drawing, you connect one of the two black points wires. That is to say - B(att) terminal - Battery positive - Green wire from large solenoid lug. M - Magneto (point) Lead - Black M - Magneto (point) Lead - Black A - +12v to Accessories (Radio, lights, etc) C - Choke - Red S - Start solenoid - White wire from small solenoid lug. Iboats sells the same switch for around $14, so don't get carried away at the auctions.

Porto · Jul 27, 2004

Re: Johnson 35 super seahorse, wiring

Is this the switch I need from Iboats? Thanks.... http://www.iboats.com/mall/index.cg...ry=electric>switch>ignition&*******=987694746

Paul Moir · Jul 27, 2004

Re: Johnson 35 super seahorse, wiring

That's the one I was looking at.

Porto · Jul 29, 2004

Re: Johnson 35 super seahorse, wiring

I got the ignition switch wired up today and it didn't work. The choke works when I push in the key put that is all. I crossed the little wire post on the solenoid to it's big wire post and it turned over the motor but the solenoid made a rapid clicking noise. The solenoid is only a few week old so i didn't think it could be the problem. My father took a solenoid (from a ford van) he had lying around and wired it in. He crossed the white wire to the green wire (at the ignition switch) and it started right up. Is my solenoid bad already?

Paul Moir · Jul 29, 2004

Re: Johnson 35 super seahorse, wiring

Porto - where did this solenoid that you have come from? Do the small terminals happen to be labeled "I" and "S"? I just want to make sure you've got the right solenoid in there. If not, then I presume you hooked the other small terminal (not the one with the white wire going to the keyswitch) to the starter's large lug (not the large lug with the green wire attached). That's the only thing I can think of that would cause the solenoid to click rapidly. If that's the case, then have a look at the other small terminal on the solenoid. Where does it's wire go? If it goes into the engine or the throttles, then you may have a faulty saftey cutout switch. Try grounding that little lug and cranking the engine again to see if it starts. This FAQ has a good diagram to give you an idea of how the solenoid's wired. Sometimes the cutout switch is on the side of the solenoid indicated, but sometimes it's on the other side. FAQ

Porto · Jul 29, 2004

Re: Johnson 35 super seahorse, wiring

The solenoid was bought at napa, according to their marine catalog it is the right one. I just remembered, when I got the switch hooked up I was meesing with the throttle control and the motor started. I wasn't touching the key or ignition when this happened. I turned the switch off and the motor continued to run. Also when I have the motor running and touche the 2 black wires (at the switch) together, they do not kill the engine.

rolmops · Jul 29, 2004

Re: Johnson 35 super seahorse, wiring

The Seloc volume 1 has all the wiring diagrams you need.

Ryan C · Jul 30, 2004

Re: Johnson 35 super seahorse, wiring

I have a super sea horse 35 johnson model#RDS-21 serial#1883207 i would like to know the year and i was wondering if u could tell me where to find a wireing schematic for an autolite starter model#4002m 12v

Johnson 35 super seahorse, wiring

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