XS1100 charging problem

[old_chopper]

Put the stator and field coil back on, hooked the ground to the frame and made a jumper to go from bat + to the field coil. Feeler gage test was good. Fired the bike up and had 15+AC output across all 3 leads from the stator at idle, increasing quickly with RPM. Stator is definitely good. Hooked regulator back up, ensured 12vdc to it, grounded directly to the battery, zero output. It's not sending 12vdc to the field nor connecting to ground to field. I'm saying it's shot. What are my options to replace it?

 

[Graham]

Put the stator and field coil back on, hooked the ground to the frame and made a jumper to go from bat + to the field coil. Feeler gage test was good. Fired the bike up and had 15+AC output across all 3 leads from the stator at idle, increasing quickly with RPM. Stator is definitely good. Hooked regulator back up, ensured 12vdc to it, grounded directly to the battery, zero output. It's not sending 12vdc to the field nor connecting to ground to field. I'm saying it's shot. What are my options to replace it?

All you can do is replace it. BTW doesn't always get 12v, the reg controls field voltage to control stator output.

 

[Matchless]

Put the stator and field coil back on, hooked the ground to the frame and made a jumper to go from bat + to the field coil. Feeler gage test was good. Fired the bike up and had 15+AC output across all 3 leads from the stator at idle, increasing quickly with RPM. Stator is definitely good. Hooked regulator back up, ensured 12vdc to it, grounded directly to the battery, zero output. It's not sending 12vdc to the field nor connecting to ground to field. I'm saying it's shot. What are my options to replace it?

This may help you, all the Honda CB's used field regulation. Here is a Shendengen SH236-12 that uses field regulation.
Here is one for $25 http://cgi.ebay.com/1980-Honda-cb90...rcycles_Parts_Accessories&hash=item3a5f792450

Edit: The above diagram is for explanation purposes only see post #29

 

[old_chopper]

I found the problem. I missed on the schematic that I needed a switched 12vdc to the regulator. Hooked it up and I have 14+vdc output. All is good now. Well not nearly all, still have no brakes, tank, seat, fender, etc...but it's charging and that's one item I can mark off my list.

 

[Matchless]

I found the problem. I missed on the schematic that I needed a switched 12vdc to the regulator. Hooked it up and I have 14+vdc output. All is good now. Well not nearly all, still have no brakes, tank, seat, fender, etc...but it's charging and that's one item I can mark off my list.

Lucky! A nice cheap fix, only your time!

 

[old_chopper]

Lucky! A nice cheap fix, only your time!

Actually I picked up a used regulator thinking mine was bad. Turned out good though cause I found a nice 160 mph speed-meter while I was there and got a good deal on both parts. I don't mind having a spare regulator on hand.

 

[Matchless]

Actually I picked up a used regulator thinking mine was bad. Turned out good though cause I found a nice 160 mph speed-meter while I was there and got a good deal on both parts. I don't mind having a spare regulator on hand.

Having a spare of anything is good and as per Murphys law that makes the chance of your regulator failing very remote! This above the peace of mind that you have a spare one.

Keep well.

 

[Graham]

This may help you, all the Honda CB's used field regulation. Here is a Shendengen SH236-12 that uses field regulation.
Here is one for $25 http://cgi.ebay.com/1980-Honda-cb90...rcycles_Parts_Accessories&hash=item3a5f792450

Your posted wiring diagram is wrong. No hot to field coil side of regulator, just a ground.

 

[Matchless]

Your posted wiring diagram is wrong. No hot to field coil side of regulator, just a ground.

OK you are right that diagram is not exactly for the Honda R/R in the photo. That is just a common diagram showing field regulation in its simplest way and was what I had lying around here.
I should have mentioned it, but we should always use the diagrams that come with the service manual.

The Honda R/R has two thin extra wires in the larger plug together with the 3 yellows. Those go to the rotor brushes.

The smaller plug has the heavy positive and ground and the sensing wire that connect to a switched positive.

Thanks for pointing it out.

 

[Graham]

OK you are right that diagram is not exactly for the Honda R/R in the photo. That is just a common diagram showing field regulation in its simplest way and was what I had lying around here.
I should have mentioned it, but we should always use the diagrams that come with the service manual.

The Honda R/R has two thin extra wires in the larger plug together with the 3 yellows. Those go to the rotor brushes.

The smaller plug has the heavy positive and ground and the sensing wire that connect to a switched positive.

Thanks for pointing it out.

Here's a hot for your wiring diagram.
View attachment 11487
Hope I didn't break any rules.