ignition switch wiring questions

35hpdan

Seaman Apprentice
Joined
Jul 10, 2011
Messages
34
hello
i have a magneto powered, 1959 gale 35hp outboard, i t was my grandfathers and i cant find the key, the old ignition swith had 2 "M" on the switch for magneto, the only ignition switches i see now have only 1 "m" plus acc, sol, etc, can i use that switch, and how would i wire it up?
thanks
dan

old switch new switch

a a
s m m g
m bat s bat
 

Silvertip

Supreme Mariner
Joined
Sep 22, 2003
Messages
28,771
Re: ignition switch wiring questions

The switches you are looking at are apparently for a "battery" ignition system such as those found on I/O and Inboards using automotive engines. The two "m" terminals are required. One goes to ground and the other connects to the ignition system. When the engine is running, the two "M" terminals are OPEN circuit. When you turn the key off, these two terminals are CLOSED which grounds the ignition thus killing the engine. A battery ignition system requires +12 volts to the ignition when the key is on. so the "B" and "I" terminals are CLOSED. They are OPEN circuit to kill the engine. You need a six position switch like this one if the old switch has the "push to choke" feature:

http://www.iboats.com/11-MP41000-Ig...27385883--**********.735192746--view_id.74273
 

35hpdan

Seaman Apprentice
Joined
Jul 10, 2011
Messages
34
Re: ignition switch wiring questions

hello
yes, a 5 position switch with 2 "m"s on it
thank you for your help, glad to see i can still get them, not a push to choke, the choke button is on the dash
thank you
dan
 
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