Ignition switch difference

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chris
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Joined: Wed Aug 30, 2017 3:16 pm

Ignition switch difference

Postby chris » Tue Mar 13, 2018 11:39 am

Hello!
I recently bought a brass ignition switch with the chrome nut on outside. It does not have the "I" post on the back, it only has the "A", "M", a "B", a "SOL", and a "G".

The switch I'm replacing has 2 "M"s (same as M+G) and the A, B, S, but also an "I".

Here's the issue - my old setup has a separate starter push button.

With this new setup, with no "I" post, the starter button has to be connected direct to the "B" and "SOL". That basically bypasses the key function, and the motor will start with no key in ignition.

Is there a way to wire this up for "key on" push button start?
1955 10hp, 25hp, 1957 18hp Johnsons. 1958 35hp, 1972 50hp Evinrudes. Among others...

FrankR
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Joined: Tue Mar 10, 2015 6:32 pm
Location: Florida

Re: Ignition switch difference

Postby FrankR » Tue Mar 13, 2018 12:01 pm

The question pops to my mind, why do you feel you need a separate starter button? Why not simply wire the key switch as intended and start it by turning the key to the "Start" position?

But if you insist on a separate start button, try connecting it to the "A" and "Sol" terminals. Depending on the internal design of the switch, it may or may not work that way..

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chris
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Joined: Wed Aug 30, 2017 3:16 pm

Re: Ignition switch difference

Postby chris » Tue Mar 13, 2018 1:39 pm

Well, quite simply, I like a starter button. I find it handy when putting a skier in and out of the water. Really just a style thing.
1955 10hp, 25hp, 1957 18hp Johnsons. 1958 35hp, 1972 50hp Evinrudes. Among others...

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chris
Posts: 18
Joined: Wed Aug 30, 2017 3:16 pm

Re: Ignition switch difference

Postby chris » Tue Mar 13, 2018 1:48 pm

Oh, and thank you. I will try the A and Sol
1955 10hp, 25hp, 1957 18hp Johnsons. 1958 35hp, 1972 50hp Evinrudes. Among others...

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chris
Posts: 18
Joined: Wed Aug 30, 2017 3:16 pm

Re: Ignition switch difference

Postby chris » Wed Mar 14, 2018 11:34 am

The A and Sol did not work.
The way I'm getting around this is to use a kill switch (leash). That will be the theft prevention, and not a bad thing to have anyway on a 14 foot boat with 50hp. ;)

Hole was already in the dash for the starter button, and I hate buttons that don't function, so, this will work.
1955 10hp, 25hp, 1957 18hp Johnsons. 1958 35hp, 1972 50hp Evinrudes. Among others...

Dave Bernard
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Joined: Wed Mar 11, 2015 12:00 pm

Re: Ignition switch difference

Postby Dave Bernard » Wed Mar 14, 2018 12:07 pm

make the dash button a horn button. And use the switch.


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