Short to Ground Please Help

[Vegastruckee]

Hello everyone, Im new to this site and the world of the CB750.
I recently traded a gun for a 78 CB750F, the bike was a little rough but Im reviving her slowly. I am doing a frame off build and am at the wiring portion. My problem is that the main fuse 15A had a blown fuse and the prior owner had put a piece of foil under it to avoid future blown fuses.....Not my idea of safe.  Well I chased the short to the VOLTAGE REGULATOR (I think).  What I need to know is...

When I test for continuity on the voltage regulator I get it between ALL leads.
Black to White
Black to Green
Green to White
all have continuity with all wires removed.
Is this correct or do I have a faulty regulator.
The manual shows that continuity between white and black is good but says nothing about continuity to green which actually goes directly to ground at the coils.
any advice would be great thanks
Ryan

[sgtslag]

If you are measuring for continuity with the Rectifier/Regulator removed from the bike's circuits, then a short/continuity between all leads, is bad.  Make sure the Rectifier/Regulator is tested when it is completely removed from the bike's wiring.

The main fuse on my '79 is 30 Amps, not 15.  Check to make sure the main fuse is rated at only 15 Amps, and not 30.  Using metal foil to bypass the fuse is a really bad idea:  gasoline fumes in the carbs; hydrogen, and oxygen gases coming out of the battery; a metal tank, full of gasoline, with wires directly beneath it -- if those wires catch fire from over-current...

Here is a source for an after-market Rectifier/Regulator, solid-state, much higher tech than OEM:

http://www.oregonmotorcycleparts.com/Reg_rec_units.html

I have not used his stuff, but if I need to replace mine, I will order from him.  He claims his parts are over-engineered, well beyond the limits of what they need, so that sounds good to me.  Cheers!

[Re-run]

While doing this, I would suggest replacing the old fuse block with a block for blade fuses. These old Buss fuses are getting hard to find.
If you reading are showing the regulator to e bad, double check them and if still bad, then Slgs idea is a good one. A new electronic regulator/rectifier is a good idea. It combines both units into 1 and works better, plus cleans up the area some.

[Vegastruckee]

Yes I had the regulator sitting in front of me at my computer as I posted.  So basically what Im gathering is that YES my regulator is bad.  Shoot. Ok I will look into the one you mentioned.  
All 3 leads having continuity IS BAD>>>>
FOIL IS DEFINETLY BAD>>>
Blade fuses GOOD>>>
THIS SITE AWESOME>>>
thanks for the info guys