CB750 wiring, how difficult from scratch?

tmorris22

tmorris22

Live Young, Die Fast
Ok so ive got a cb750.. the wiring looks like crap, dirty and messy.. i want to clean it up and im wondering if it makes sense to rip it all out, buy new wire and start from scratch so it looks fresh and clean.. I have never done wiring on a bike before so im not sure if this is a good or bad idea.. I have the wiring diagram, just not sure if its going to be a huge undertaking.. Any thoughts on this?
 
any idea what this might cost if I have someone else do it? I mean to rewire the whole bike, an idea what that could cost?
 
Easier than you think. I did the same thing on my 360 build and it was one part of the build I was looking forward to the least. Afterward, I was quite pleased with the result.
 
Do a web search for cb750 chopper wiring or cb750 minimal wiring. There are a few diagrams out there, most have been reposted around here too.
 
I had never done any wiring before I made my CB750 harness from scratch. It took some time, but I'm glad I did it. I heat shrinked the whole thing, and it turned out pretty clean. Since there were a few things omitted from the original, making my own made more sense than trying to find one in decent shape.
Some suggestions:
1. Don't solder anything until you have the entire harness mocked up.
2. Buy yourself a good set of open barrel connector crimpers with 20-16ga clamps.
3. Go to http://www.oregonmotorcycleparts.com/connectors.html and buy replacements for all your connectors.
4. Use the official Honda wiring diagram. The hand-drawn, color diagram floating around the interwebs isn't worth a crap.
5. Matching wire color isn't necessary if you keep track of everything, but if you insist on using the correct colored wires, Dime City has a great selection at a decent price, and you won't have to by 50ft of everything.
 
The wiring on most bikes is made up of different "systems". Starter, ignition, lights, etc. once you wrap your head around how each system works it gets pretty easy. You'll start to realize that the stock harness is way over done. When I finally mustered up the gumption to do my 350 I was amazed at how simple I could make it.


Sent from my iPad using Tapatalk, bitches.
 
djelliott said:
The wiring on most bikes is made up of different "systems". Starter, ignition, lights, etc. once you wrap your head around how each system works it gets pretty easy. You'll start to realize that the stock harness is way over done. When I finally mustered up the gumption to do my 350 I was amazed at how simple I could make it.
Click to expand...

Pretty much this. So many redundant ground connections whereas I just switched to using the frame and grounded stuff where I needed it. I also bypassed all of that stupid fuse box and substituted a single 3A fused for everything (obviously no starter for me).
 
Yup what these guys said.
The stock harness is ridiculous.

It will take you a while to figure out how everything works, but once you do its a cake walk.
 
Awesome, thanks so much!! It's still pretty cold out so i think i've got plenty of time to mess it up and start over if i need to.
 
DaveMinella said:
I had never done any wiring before I made my CB750 harness from scratch. It took some time, but I'm glad I did it. I heat shrinked the whole thing, and it turned out pretty clean. Since there were a few things omitted from the original, making my own made more sense than trying to find one in decent shape.
Some suggestions:
1. Don't solder anything until you have the entire harness mocked up.
2. Buy yourself a good set of open barrel connector crimpers with 20-16ga clamps.
3. Go to http://www.oregonmotorcycleparts.com/connectors.html and buy replacements for all your connectors.
4. Use the official Honda wiring diagram. The hand-drawn, color diagram floating around the interwebs isn't worth a crap.
5. Matching wire color isn't necessary if you keep track of everything, but if you insist on using the correct colored wires, Dime City has a great selection at a decent price, and you won't have to by 50ft of everything.
Click to expand...
+1

I did it this way and it took time
but not hard.

get a case of beer and a buddy...it's borrring!!
 
The best part is you actually learn, theory tends to go in one ear and straight out the other with me, especially when it's boring shite like electrics, but after wiring a few bikes the info starts to stick in your head ;)
Give a shout if you need some simple Honda electrics plans, I have some laying around.
 
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