Some pretty sharp wrenches run in that crowd. Plus Shadetree built an XS650 chopper from scratch.... including the wiring.
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Its Time to Start Again
- Thread starter Dakon
- Start date
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- first build
I didn't go into a lot of detail here, but a little preview of custom harness building: mount all the components, string the wire, attach terminals, test everything, take it all off and wrap it:
https://www.xs650.com/threads/i-cant-stop-myself-single-cam-cb750.62743/page-6
https://www.xs650.com/threads/i-cant-stop-myself-single-cam-cb750.62743/page-6
That will work and is one way to do it. The example shows a PAMCO type ignition (electronic points), for points there would be another wire (grey on Yam) with the orange wire with condensers in parallel and two coils. You could also go with fewer circuits and more splices or more circuits and fewer splices, but the above is a reasonable option. Appears to use multi-pole Ignition switch as starter button too
I believe so, it's one of the things that was installed by the previous owner. So im not too sure.
Don't know if it was previously pointed out, but when you order your supplies, get some extra wire and some extra pins.... then practice practice practice...
Those Molex style pins can be a bit finicky 'till you get the hang of 'em. I haven't looked, but there's prolly some how-to videos on Youtube.
Those Molex style pins can be a bit finicky 'till you get the hang of 'em. I haven't looked, but there's prolly some how-to videos on Youtube.
Not to put too fine a point on it now, but the diagram has the horn wired backward: the buttons usually provide ground via handlebar and the horn itself receives fused power directly. A starter button generally works the same way and provides ground to the starter solenoid (blue/white in diagram), but if 3-pole iggy switch is the starter the diagram is correct
So I was digging through boxes and found an m-unit from what research I've done it seems to be a replacement for the fuse box system, and really expensive, is this something I should go ahead a use instead and how would this change the current wiring setup?
WOW!!! Yes it's expensive... and hell yeah, use it. I believe JP even has experience wiring it up.
JP?
Hmmm....yes, I drank the M-Unit koolaid 
. I used one on the bobber as I wanted the momentary handlebar switches, like the cool kids. IMO they unnecessarily complicate the wiring, especially if using "normal" handlebar switches: all the switching inputs rely on an earth signal (except key switch).
Anyway, yes, they are highly sought after & ~$500 new nowadays. They replace fuse box, flasher relay, etc.
So, decision time: design the wiring using the M-Unit, or sell the M-Unit and fund $3-400 worth of other stuff
. I used one on the bobber as I wanted the momentary handlebar switches, like the cool kids. IMO they unnecessarily complicate the wiring, especially if using "normal" handlebar switches: all the switching inputs rely on an earth signal (except key switch).Anyway, yes, they are highly sought after & ~$500 new nowadays. They replace fuse box, flasher relay, etc.
So, decision time: design the wiring using the M-Unit, or sell the M-Unit and fund $3-400 worth of other stuff
I think I'll go ahead and use it, the Bluetooth options seem like fun, plus it seems like something I would eventually want to upgrade to, plus there seem to be quite a few in-depth youtube videos about that go into extreme detail when wiring it.
I would suggest then getting an M-button and momentary handlebar switches. It's optional, but make life easier and look "slicker"
Our friends over at Dime City (Tampa) have them
https://www.dimecitycycles.com/m-button.html
https://www.dimecitycycles.com/moto...-2-black-push-buttons-for-7-8-handlebars.html
https://www.dimecitycycles.com/moto...ainless-push-buttons-for-7-8a-handlebars.html
Our friends over at Dime City (Tampa) have them
https://www.dimecitycycles.com/m-button.html
https://www.dimecitycycles.com/moto...-2-black-push-buttons-for-7-8-handlebars.html
https://www.dimecitycycles.com/moto...ainless-push-buttons-for-7-8a-handlebars.html
Before diving into the deep end with the M unit, wire up a SIMPLE harness, ignition only is fine and find out if you have a WORKING ignition. Those mike's iggys have a bit of a reputation. Ditto Pamcos on capacitor only (no battery) electric systems.
And that goes back to the M-Unit. Will it work on cap only?
Pretty sure it needs a battery for full (bluetooth) functionality.
Oops.
The backing plate for the iggy doesn't appear to be bolted down, (timed).
Blue circles
