Need Wiring Ideas

73 850, with an absolute hack job, a boars nest, of wiring hanging off the battery and all jammed up against the let side cover, ashamed.

Over time on this forum I have viewed some beautiful circuit board type wiring solutions and ideas, but can't seem to find them doing search.

Need your advice, pictures, products to buy, how to go about this in a tidy fashion!

thanks all

If you plan to keep all the stock components, you're just as well off to buy a complete new stock harness.

Danno, I did install a new stock harness some years back but since then I have installed an Alton starter in addition to numerous other goodies that all go to the battery.

I used to believe that it was good practice to use the frame, bare etc, as a ground but after repeated failures I now run everything back to the positive terminal.

As a result I have five different wires attached to both the positive and negative terminals along with their fuses and so things are really crowded there.

I remember seeing some pictures a few forum members posted of how they much more effectively dealt with this, circuit boards handling the pos and neg leads
and with only one thicker wire going to the terminals, I am hoping to do the same but really need some good direction.

I am running a MotoGadget M-Unit on my Combat. Pricey, but worth it. Signals are just a light gauge wire that provides an activation ground, and outputs directly to the load.

I agree with your wanting to tie the grounds and positives back to the battery.

I bought a Blue Sea Terminal Fuse Block that is used on boats that I will be putting on my 850.

It's not very big and gives 6 fused circuits and 6 grounds.

Might take a little fab work to make a bracket but will clean things up.



https://www.bluesea.com/products/5025/S ... _and_Cover

1up3down said:

73 850, with an absolute hack job, a boars nest, of wiring hanging off the battery and all jammed up against the let side cover, ashamed.

Over time on this forum I have viewed some beautiful circuit board type wiring solutions and ideas, but can't seem to find them doing search.

Need your advice, pictures, products to buy, how to go about this in a tidy fashion!

thanks all

Click to expand...

https://www.google.com/search?sitesearc ... gws_rd=ssl

1up3down said:

73 850, with an absolute hack job, a boars nest, of wiring hanging off the battery and all jammed up against the let side cover, ashamed.

Over time on this forum I have viewed some beautiful circuit board type wiring solutions and ideas, but can't seem to find them doing search.

Need your advice, pictures, products to buy, how to go about this in a tidy fashion!

thanks all

Click to expand...

A few to get you started

please-review-wiring-plan-t18894.html
practical-custom-wiring-t6551-45.html
relays-for-dummies-t20354.html

Another option http://www.easternbeaver.com/Main/Wirin ... /pc-8.html

Fused earth returns? surely the blue sea unit is for negative earth systems. You could wire your whole bike to be live in the event of a short cct if not using an earth return - not ideal, and remember the fuse is there to protect the supply not the service - I'm looking for another Commando, but will stop short of a fire damaged one!!

Thanks for all the good ideas!

Yesterday I ordered the Eastern Beaver PC-8, looks like it work out nicely

Too late, but I've had excellent results with my individually fused circuits and a main breaker...





Several years, many miles, zero failures.

In all the British bikes I have rewired over the years and the best thing to start off with is to draw a wire diagram make it as simple as possable, I never buy complete wiring harness as there are things in them that is not needed, make the wiring as simple as you can, the less wires means less problems and another thing I never run my earth wire in with the main wiring harness as I have seen many burn out the earth wire completely from a short in the harness and don't go over board with fuses, they are there to protect wiring but to many fuses can become problems as well.
My own Norton has one of the simpless wiring harness, but I am lucky I run a J/H maggie and my main harness has only 4 wires (2 wires are brake and tail light wire) and one earth wire plus only one main fuse to worry about, I don't run a battery but my power come straight off the altenator with a battery elimator, but am just about to put a very small battery into the system so I can have brighter lights at night without changing anything with my wiring set up.
So best advice is make it simple, use the right tools for your connectors (crimping tools) and you won't have any problems.

Ashley

There's this one....
http://www.doov.com/apps/nortoncompanio ... ive-ground

I stole heavily from his idea. I used his template for the bracket which holds the fuse block and a 3 phase PODtronics regulator. I used a different fuse block and did not rewire the bike if I could help it and left it as positive ground. There are relays for horn, ignition and headlight hi and low beams mounted near the items they control. The bracket worked out really well I thought.

If anyone feels they must throw out their old harness please throw it my way. I can use the color coded wire.

Madnorton said:

Fused earth returns? surely the blue sea unit is for negative earth systems. You could wire your whole bike to be live in the event of a short cct if not using an earth return - not ideal, and remember the fuse is there to protect the supply not the service - I'm looking for another Commando, but will stop short of a fire damaged one!!

Click to expand...

Sorry, I should have noted that the Blue Sea unit will be negative ground on my bike.