6 volt generator electrical system questions

The FO-4 manual shows in the exploded view of the electrical system that the ammeter has two wires connected to it but on the same mounting screw. The other screw is blank showing nothing connected to it.

Will the ammeter work that way if both wires are only connected to one of the mounting screws?.. (my 1949 front mount distibutor 12 volt alternator 8n is connected with one wire to each of the screws and nothing spanning them (I assumed there was an internal connection in the ammeter that bridged the gap and thats how the volts were read.)

Here is the biggest thing I dont understand about the electrical schematic... If the ignition switch is connected to both sides of the two prong resistor, doesnt that render the resistor useless in surge protecting the distibutor coil because elctricity takes the path of least resistance and instead of going through the resistor it would go through the ignition switch and then the voltage wouldnt be stepped down?

What about the voltage regulator? I have two spares and a cut out relay (9n only?) that are old parts pulled off my two tractors that werent being used. The FO-4 manual shows two different types of regulators specific to each type of generator used. Mine should be the late 8n models. A new voltage regulator is about $30. I was hoping to reuse one of my old ones but there is no way to detemrine what kind I have is there?

I have everything wired up just like the elctrical schematic for 8ns after serial $ 260000 (or soemthing like that; my number starts with 39____).

I am getting a new 6 volt battery today, going to finish cleaing contact points tighten eveything down, polarize the generator, and try and fire her up over the weekend.

Anybody else have any other advise I might want to be on the look out for?

Yes! you can connect the Generator to one of the Regulators (all wires connected), with the Fan belt loose, and then jumper BAT to ARM term on the Regulator (same as polarizing) and if the
GENerator "motors" (rotates) you have a match.

Side mount 6 volt tractor does not have a ballast resistor inline to the coil (round) Hope this Helps,

The two prong resistor is parallel to the ignition switch like the electrical schematic. My concern was buring up the points or the coil but I am assuming it is the voltage reulator that is preventing this and no the two prong ressitor. I dont understand what the resistor is protecting?

The Gen regulator controls Voltage output of the Generator,which is loaded across the battery to ~ 7.5 volts, and this is the Max voltage applied to the electical circuits. The regulator has an "indirect" control of ignition Voltage because the Battery (load) will not allow it to go much beyond ~7.5 volts

The oem 6 volt side mount coil has a primary resistance of >1.4 ohms and does not require a ballast resistance. If you used an automotve coil (~ .7) ohms a ballast would help.

Hope this Helps,