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My 51 Mercury M1 was converted to 12v when I purchased it, but there were a number of things that weren’t working so I have been working my way through the wiring and sorting them out one by one. This forum has been incredibly helpful as a guide as I work my way through previous threads, thank you all so much! I am still running a Gen which I expect is 12v and all my lights have been converted, dash gauges have voltage reducers installed BUT I am confused by two things which your previous discussions have prompted me to ask advice. My voltage regulator appears to be 7v ... can this be so? (See first photo) AND I have another device bolted to the firewall which seems to feed the coil, so am wondering if that is a voltage reducer of some sort, and if so do I perhaps have a 6v coil? (See second photo). Thanks for any help.
I'd bet that the PO put a new reproduction Label on a 12 volt regulator for looks. The resistor on the firewall is to drop voltage to the points after startup to prevent burning up the points.
