Solenoids can cause this type of parasitic draw. When you disconnected the solenoid, did you unhook the 3 poles leaving the battery lug on and it still drained? Even though you're on your 2nd regulator- you may want to also set your meter to AC and verify it isn't feeding AC into the battery as it runs.

Your voltmeter should be able to measure amps. You should measure the amps with everything off. By connecting the meter between the battery and the cable that goes to it. Amp should be zero if everything is OK; any amps measured is what is discharging your battery. By disconnecting different parts you should be able find what is causing this. Good luck!

Thanks for the feedback!! I just went out and purchased a better voltmeter than the one I already had. This one can read AC as well as many other options. The one I had before was cheap and could only tell me how many volt my battery has and nothing else(it was only $6). I must admit, IÂve never used one of these before so IÂm not really sure how to test the Amps or AC. I am going to play around with it tonight and see what I can figure out based off your suggestions and what I've read on this site. However, if you have any way to walk me through it in more detail, I would greatly appreciate it. Again, IÂm a newbie at this electrical stuff so feel free to talk to me like IÂm a 10 year old :)

I will report back with what I found so it may help others with the same symptoms. If you donÂt hear back from me you can assume I fried myself while trying to figure out my new gizmo. Thanks again for your help!

UPDATE:

@ tomplum: To answer your question from before (I had to go double check how I disconnected it before I replied) - when I disconnected the solenoid I did it right at the bottom of the solenoid. There was only one connection there  wire to solenoid. IÂm not sure if that answers your question BUT I may have had some luck when I tested the regulator using your AC suggestion. Here is what I did with the motor off, the voltmeter set to AC, and everything else on the tractor connected properly, I disconnected the yellow wires running from the regulator to the generator (I am assuming the generator is where it goes) and kept the red wire connected (the one running from the regulator to the battery). I then put the positive end of the voltmeter into the yellow connecter running out of the regulator and I grounded the negative end of the meter. This gave me a reading of 24.1 (not sure what those units are, volts?). I could be totally wrong, but shouldnÂt that be 0? Why would there be voltage coming out of the regulator when the motor is off? Like I said, I could be misunderstanding how the regulator works so feel free to correct me. Thoughts anyone???

@ delbe_grow: According to the instructions that came with the voltmeter, it can read Amps (yea!). That said, I now know how to set it to read Amps however, IÂm not really clear on what and where to connect it to. I know you explained it to me but I guess IÂm really not following what you are saying :(. Also, IÂm not sure if this is normal, but the instructions say when I am measuring Amps I canÂt take a reading for more than 10 seconds and I have to wait 15 MINUTES between each reading. That could take me a while when IÂm really just guessing whether or not IÂm doing it right. Remember, I'm a newbie ;) Thanks for your suggestions though!

To measure the amps disconnect positive connection at battery connect amp meter to positive battery post and the other meter lead to the disconnected battery cable. This is the only place that you have to measure at this point in time. The current with everything off should be very low or zero(less than .010 amps)for example. You could have a bad diode in the alternator as suggested in the other message. It could be carbon tracking around the key switch or the solenoid also chaffed insulation on some wiring. About the amp meter if you are measuring high current with the meter you will be heating a shunt resistor internal to the meter; they are tell you to let it cool down to not burn your meter up.! Happy hunting!

While you have the ammeter connected between the battery post and the battery cable..........DO NOT turn the key to the start position!!!
Doing so would certainly ruin your meter instantly.
The starter draws far more amps than your meter can tolerate when it is engaged.
I suggest you might even want to unplug the small control wire from the starter solenoid while you are testing to guard against accidental, or "forgetful" engagement.

By solenoids, I think we are discussing 2 different ones. the starter solenoid is where the + battery cable ends. There is also a red lead wire that goes to the ignition switch on this lug. If you left only the + cable on the solenoid (including disconnecting the switch lead wire) and you have draw- that would indicate the starter solenoid is bleeding current. If, when the tractor is running- you put your tester's leads at the battery and it reads on the ac scale- you have a regulator issue. I think you should touch both terminals of the yellow harness when checking ac output on that last test you did. I did have a stator in one of these this spring that was 1/2 shorted. Is there Dc at the red wire off the regulator at all times? Know to do the amp draw test - you may have to select a different com for lead on your meter. Check that manual.