Help installing after market switch IN 72 mercury 500

[casper75]

Hey guys I have a 1972 mercury 500. The controle I got with the unit has no electrical guts everything has been gutted. I bought an after market mercury key switch today. I have found the wirring digrahm but the letters on the digrahm dont match the letters on the new key switch. Any guys ever done this before.

 

[Barnacle_Bill]

Re: Help installing after market switch IN 72 mercury 500

You need to elaborate a little more. Which switch did you get and how is it marked?

 

[casper75]

Re: Help installing after market switch IN 72 mercury 500

The switch is a sierra made by teleflex. it is labeled
c = choke
m = magneto circuit
I = ignition circuit
s = solenoid
m = -------------- looks like ground
b = battery +

 

[casper75]

Re: Help installing after market switch IN 72 mercury 500

My motor wirring digrahm look at the last post on the link it was posted by laddies

http://forums.iboats.com/showthread.php?t=289874