rectifier shorted??

[onefunbud]

I have a 1981 XS1100 that shorts out every time I plug in the rectifier. It shows to be good and the white wires that lead to the stator coil show good readings too. Has anyone else seen this problem? Can the rectifier diodes short out under load?? Thanks James

[Geezer]

Re: rectifier shorted??

Originally posted by onefunbud
I have a 1981 XS1100 that shorts out every time I plug in the rectifier. It shows to be good and the white wires that lead to the stator coil show good readings too. Has anyone else seen this problem? Can the rectifier diodes short out under load?? Thanks James

Diodes have been known to fail only under load but it's the exception not the rule.

Geezer

[newmaac]

James, Have you figured-out the rectifier issue?
I have a couple spares. If you want to pay the shipping I can send you one to swap it with.
If it solves the problem you can mail me a few bucks. If it doesn't, well then, at least you know that it's not the rectifier that is causing the problem.

I hate electrical problems. If I can't see it...........

Let me know.

[skids]

Re: rectifier shorted??

Don't qoute me, but I think that the thing must be bolted to the frame to work. It is frame grounded.... There is no ground wire coming out of the wire clip. What makes you think it is shorting out?

Originally posted by onefunbud
I have a 1981 XS1100 that shorts out every time I plug in the rectifier. It shows to be good and the white wires that lead to the stator coil show good readings too. Has anyone else seen this problem? Can the rectifier diodes short out under load?? Thanks James

[Geezer]

The stock regulator/rectifier grounds through the wiring harness. It may also ground to the case but I'm not sure.

Geezer

[skids]

None of my xs11's do. There is a male /female clip where there is an apparent ground on one side, but not the other side...

Originally posted by Geezer
The stock regulator/rectifier grounds through the wiring harness. It may also ground to the case but I'm not sure.

Geezer

[Geezer]

Originally posted by skids
None of my xs11's do. There is a male /female clip where there is an apparent ground on one side, but not the other side...

The black wire from the rectifier/regulator connects to the ground wire in the wiring harness. So it looks like it grounds both ways but that's not all that uncommon. I'm pretty sure most of the Honda ones do too.

Geezer

[onefunbud]

Originally posted by newmaac
James, Have you figured-out the rectifier issue?
I have a couple spares. If you want to pay the shipping I can send you one to swap it with.
If it solves the problem you can mail me a few bucks. If it doesn't, well then, at least you know that it's not the rectifier that is causing the problem.

I hate electrical problems. If I can't see it...........

Let me know.

I'm still new here so don't know how to respond to each person...
No, still haven't solved the problem.. Have 2 other classic bikes and
they had shorts too but were easy to find...
Thanks for the offer, may take you up on it if don't find the problem soon...
Thanks Again....
James

[onefunbud]

Re: Re: rectifier shorted??

Originally posted by skids
Don't qoute me, but I think that the thing must be bolted to the frame to work. It is frame grounded.... There is no ground wire coming out of the wire clip. What makes you think it is shorting out?

Thanks for the response...
I checked it on and off the frame. The rectifier part has a red, black, and 3 white wires.
None of the wires show to be grounded to the outside of the case so guess it's grounded
threw the wiring harness.
The reason I think it's shorted is because when I turn on the key with it unplugged there's
12v going to the fuse panel. But when I plug it in the voltage drops down to about 1 1/2
getting to the hot side of the fuses & the battery drains very quickly.

I'm open to any ideas... LOL

Thanks Again...
James
.

[onefunbud]

Re: Re: Re: rectifier shorted??

Originally posted by onefunbud


Thanks for the response...
I checked it on and off the frame. The rectifier part has a red, black, and 3 white wires.
None of the wires show to be grounded to the outside of the case so guess it's grounded
threw the wiring harness.
The reason I think it's shorted is because when I turn on the key with it unplugged there's
12v going to the fuse panel. But when I plug it in the voltage drops down to about 1 1/2
getting to the hot side of the fuses & the battery drains very quickly.

I'm open to any ideas... LOL

Thanks Again...
James

Should have added here that this is with the fuses removed and headlight unplugged...
.