1964 Evinrude Starflite 75hp

[waterlogged59]

Re: 1964 Evinrude Starflite 75hp

OK, have you had time to ponder on my previous post yet? Here is a BIG clue. You said the ammeter does not move when you turn the key on. That means electricity is not flowing through it to the red wires on the key switch. Why not?? Probably because there is none present at the green and brown wires. OR the fuse is blown. OR there is a problem with the battery cables.

1. Check BOTH battery cables. Shiny bright clean and tight?
2. Check voltage at green wire on ammeter. Should be 12V. If not, find out why not.
3. If you have 12V on brown wire on key switch, check voltage on the red wires stack when key turned on. Should be 12V. If not, but you do have it on the brown wire, bad key switch.

So I think I may see the problem as well. I didn't notice it before but it was running previously with this key switch. But mine has the following S,M1,M2,A. So I'm not sure why it was running before compared to picture that show shows a key switch I,S,B. I will look into the voltmeter tomorrow and see. I knows it tough without much information but thanks a lot for all your help.

 

[Joe Reeves]

Re: 1964 Evinrude Starflite 75hp

As stated.... there should be battery voltage at the ammeter GREEN wire, thru the ammeter to the BROWN wire, thru the fuse to show voltage to the "B" terminal of the ignition switch. If voltage is present at the ammeter GREEN wire and no voltage at the ignition switch "B" terminal... then the fuse is blown between the ammeter and the ignition switch.

On your thumbnail ignition switch:

B = (Battery) Constant 12v Battery voltage.
S = (Solenoid) Wire leading to small 3/8" nut terminal of the starter solenoid.
A = (Accessory) To automotive ignition coil, and to anything you want 12v applied to when the key is in the RUN or START position.

The "M" terminals are for magneto ignition.... Not used with automotive ignition.

Exactly how are you checking voltages with your volt meter? RED lead on where, Black lead on where? The problem is a easy trouble shoot... I don't understand the depth of this.

 

[waterlogged59]

Re: 1964 Evinrude Starflite 75hp

As stated.... there should be battery voltage at the ammeter GREEN wire, thru the ammeter to the BROWN wire, thru the fuse to show voltage to the "B" terminal of the ignition switch. If voltage is present at the ammeter GREEN wire and no voltage at the ignition switch "B" terminal... then the fuse is blown between the ammeter and the ignition switch.

On your thumbnail ignition switch:

B = (Battery) Constant 12v Battery voltage.
S = (Solenoid) Wire leading to small 3/8" nut terminal of the starter solenoid.
A = (Accessory) To automotive ignition coil, and to anything you want 12v applied to when the key is in the RUN or START position.

The "M" terminals are for magneto ignition.... Not used with automotive ignition.

Exactly how are you checking voltages with your volt meter? RED lead on where, Black lead on where? The problem is a easy trouble shoot... I don't understand the depth of this.

That's the way it is setup right now with no avail. I going to buy a voltmeter tomorrow and test. The reason for so much depth is because it was running perfectly fine and when I put new lower unit on this all started. So that's why I am asking for your knowledge for trouble shooting.

 

[Joe Reeves]

Re: 1964 Evinrude Starflite 75hp

Understood... strange problem. The voltmeter is a must for trouble shooting. Hopefully that reveals the problems cause so you can get back on the water.