'80 to '83 Reg/Rect FREE

[pamcopete]

bc....,

Well, under normal circumstances, there is not enough current going through
the rotor to heat up the wire that much. About the only thing that could
cause that is if then rotor is shorted or partially shorted and drawing
extra current, but you said that you changed the rotor, so my question would
be...

1. Are you sure the replacement rotor is OK?

2. Measure the resistance of the slip rings for 5 Ohms.

3. One other possibility is that the regulator has shorted out and the heat
is actually coming from the regulator, not the wire itself.

4. And, when you say that it was working OK, what was the battery voltage @
3,000 RPM?
5. If it is a shorted regulator, take it back. It is under warranty.

[bcboy67]

I got the new rotor from Custom Rewind, measured at 5.5 ohms before it went on the bike.

It was working at roughly 15volts at above 2k rpms last night. Altho it did shoot up a little past that but I attributed it to not having my headlight fuse in from when I was running on just a battery to get it home.

Is there a way to test that the regulator is in fact shorted? Or is that about the only possibility at this point?

I'm fairly new to electrical things. So my knowledge is limited. I appreciate all the help.

[pamcopete]

bcboy,

Whether your headlight was on or not should not make a difference. That's why it's called a regulator, so that observation would lead me to believe that your regulator is shorted, perhaps damaged by the shorted rotor.

1. Also, 15+ volts is not acceptable.

2. Also, remember that the regulator case must be grounded and that the battery box is not a ground, if that is where you mounted it.

3. Also, the regulator will fry instantly if you mix up the connections, so double check before you install the replacement.

[bcboy67]

I knew that 15 was high but I didn't know if that was acceptable or not.

I guess at this point I will replace the regulator and see what happens.

Thank you again

[wrencher]

HEY Pamcopete quik question if your rect. is fine and you get voltage increase when grounding the green wire the reg porition is bad. can you wire the crysler reg and not do the rect. part? and do you still have to insulate the brush screws? thanks The Wrencher....the bike is an 81

[pamcopete]

Wrenched,

Yes, you can just disconnect the green and brown wires from the stock reg/rect and connect the green and brown from the Chrysler reg in their place, as shown in the diagram of the Chrysler regulator. you do not have to isolate the brushes with the nylon screws for '80 to '83 models. The brushes are already isolated (not grounded).

[bcboy67]

Pamco...

My regulator was bad, took it back under warranty.

Now I am no longer getting the hot condition on the green wire. I now have another issue. After I got everything hooked back up, it started just fine. but developed what I can best describe as a miss at all rpm. When I unhook the rect/reg it goes away.

This is with a new rotor from Custom rewind.

[pamcopete]

bcboy67,

That is probably a weak magnet, even though you just got a rotor from Custom. They do not replace the magnet in the rotor.

There was another member with the same problem, and what he did was epoxy a new rare earth magnet on top of the magnet in the rotor, being sure that there is clearance between the magnet and the stator frame. He used a rare earth magnet with a very low profile and some JB Weld.

[bcboy67]

yeah, I found that thread, after I posted here as well. I was curious as to where a good place to get a magnet like that would be

[pamcopete]

bcboy67,

Well, probably your best bet is to PM the poster of the fix. I think he said he bought several of them, so perhaps he can just send you one.

[xsleo]

Try Radio Shack. Your favorite hardware store.

[azman857]

I have an '80 SG with a rear disc brake. The reservoir for the master cylinder gets in the way. Anyone install this mod on a rear disc model? How did you do it? I think I have a plan. Hang the Reg with a hole drilled 1/2 way between the original 2. Using those holes to attach an aluminum right angle piece to attach a small sheet of aluminium to mount the rectifiers .

[xsleo]

I went to Radio shack. The rare earth magnets are part # 64-1895. A two pack, 4.8 mm/ 3/16 ". $1.99 a pack.

[azman857]

Well I got it all installed. Might be a bit ugly and crude, but it works!. I still need to tidy it up and solder the wires to the connectors and all that. I did start it up and put meter to the battery and reved it up. After a bit the voltage started to climb as the battery started taking the charge. I saw 14 + volts and climbing. Like I said in my earlier post, I had to change the arrangement of it all due to the rear brake reservoir placement. I'll post pictures later after the tidying up.

[pamcopete]

azman857,

Check that voltage again. 14+ and climbing may not be a good thing. The voltage should not go above 15 Volts or you will fry things. Check the voltage at 3,000 RPM.