some wiring diagrams

That's just it, I do not like frame grounds, and cannot afford them. I once rode 8 miles in the rain and my hands kept grounding out on the levers, I always assumed it was from a bad chassis ground (hasn't happened since I went and re-filed the frame grounds). That is not an experience I wish to repeat. I must be cautious as well, due to the fact that I have paralyzed one of the twelve cranial nerves, so I may require up to two pacemakers among other possible electrical implants in the near future, and those devices do not like electrical shocks. I'd rather do the extra work, than risk my health and wellbeing.
 
You have to have a ground to the frame. If you are getting a shock then the positive is making contact with the metal somewhere, (short).
 
none i suppose. But i don't understand why the worry if your ground is done properly, A short of any kind will still give you problems and you have more chance of a short through the positive than bad grounds, especially as you know what the affect could have on you, you obviously will make sure the contact is good
 
You definitely have the right of it; done correctly, frame grounds are very functional. I just don't care for them. I had planned on running quite a few ground wires directly to the negative terminal, but grounding everything through a "spinal cord" would allow me to omit much of that wiring, while still avoiding using a network of frame grounds. I just wanted to ask the electrical gurus if it would work.
 
Well, where is your engine ground? The starter, charging, and ignition systems are grounded thru the engine. The engine is grounded to the frame so you end up with a frame ground anyway. Why not just make it a good one? BTW, if you are getting shocked like you said it has to be coming from a high voltage source. The only high voltage source is the ignition system. I've worked as a mechanic all of my life, and have NEVER been shocked by a 12 volt direct current source. Burned, but never shocked. I have however been shocked numerous times by ignition systems which by design are grounded thru the frame at least thru the spark plugs. You can't wire around that.
 
As to your shocking revelation. If you are riding one of these bikes it's at least 30 years old, and prone to bad connections. Once you clean all of these connections (positive as well as negative), and repair any shorts including the plug wires there is no reason to believe you'll ever be shocked again.
 
Ok, seems like this diagram (if it loads) looks more like what I want to run on my 80 xs650, with the PMA and Pamco ignition. Can I just use a toggle switch in place of the key and kill switch? just one switch for complete on/off or will this be an issue with constant power? By the way running battery on this project. The toggle switch has ACC/Power and GND connections.
 

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You can run it that way, but I'd advise at least a Kill Switch with it located close to your right thumb. Trust me, if you go down you want to be able to Kill the motor PRONTO! Running WOT while all the oil is laying in which ever side of the case that hits the ground instead of the sump pick-up ain't pretty, or recommended.
 
a simple diagram for those confused by regular diagram layouts


Jayel,

think you could add my brushes to this diagram. I think thats all im missing. I will likely go through the fuse box to the switch, dont look at that too hard.

thanks
 

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Jayel,

think you could add my brushes to this diagram. I think thats all im missing. I will likely go through the fuse box to the switch, dont look at that too hard.

thanks
what year? some used one grounded brush 70 thru 79, 80 and later were ungrounded here's ungrounded since you are using a combo reg/rec
 

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what year? some used one grounded brush 70 thru 79, 80 and later were ungrounded here's ungrounded since you are using a combo reg/rec



UPDATED PIC OF DIAGRAM.....

Its an 78-79-80-81 xs650. Yep, thats right. Engine appears to be 79 or 80 based on S#, but already had the shaft installed in the camshaft for points...??..??..its there,....frame is an 81. Reg/Rec combo . Running a pamco now.

Gonna look at your diagram now.
 

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what year? some used one grounded brush 70 thru 79, 80 and later were ungrounded here's ungrounded since you are using a combo reg/rec


I think this looks right. I now have a fuse in line with my switch before my fuse box in the diagram. I knew there was something missing from my original diagram. It was the brushes.

Thanks
 
I'm in the middle of making my second wire harness now and I just love this thread.

I have some info I'd like to share here..

Pushing the power through old or after market switch can sometimes be problematic, they are just not up for the job. When in doubt, I use a relay. A standard 30amp Automotive relay you can get at any auto parts store for $5-$10, or online for less.
car-relay_zps2376da9d.jpg

The idea here is that you can make the power run through the relay, not your weak switch. Your weak switch just needs to provide enough juice to flip the switch in the relay.

Basic Relay Wiring
Relays_zps8d484d9e.jpg


'Switching Positive' is handy when you don't want to power to your bike running through your old kill switch.

'Switching Negative' is handy when you want to provide ground to a device through a switch, like the horn.

Also note that there are also 5 pin Relays. With those, you can use the 87a terminal to switch something off, while 87 turns it on.

Now when it comes to electrical engineering, I am by no means an expert, hardly a novice.
 
what year? some used one grounded brush 70 thru 79, 80 and later were ungrounded here's ungrounded since you are using a combo reg/rec

Check this out Jayel.

I think this is right..what do you think.

?????????
 

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looks ok yes good idea to have a main fuse protects everything and the others protect those circuits, easy to isolate problems... just check the alternator wires carefully as to colors green and black is a grounded brush have to isolate it, green and brown you're good to go
 
Any problem with pulling the fuses to the accessories? That's all I did to test mine the other day just leave in the main fuse and ignition fuse.
 
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