minimal curcits

hi i am new here first post and i was hoping that you could help me out im working on my 1982 maxim 750 i want to rewire it alot of the wires are bittle and braking from what i can tell is years of being stored outside just want the turn signals and brake light just the thins to make it legal no safty switches or dand warning lcd that dosnt work and gives me false warings any way any help would be great thanls

 

Search for simplified wiring. There was a post not long ago on that.

 

ok thanks was't sure

 

I believe the wiring on these bikes, when hooked all together, will reach from Maine to California!!!
Once bobbed and simplified, it will only reach about a block.
I can see with all the safety switches and monitors, gauges and lights, there has to be wiring. Some may feel more secure with all the bells and whistles these bikes come with. But for the experienced riders and those who like to simplify things a bit, there is so many wires you can do without. Just a thought.

 

thats no kiding i started out on a 1970 somthing yamaha 175 eduro no bells and whistles on that thing

 

:wink: SIMPLE :wink: I drive a '67 Chevy pick up that still has points and plugs...

skillet

 

http://www.currentobservations.us/image ... Series.jpg

Heres the link to the wiring. I didn't draw it out but used it as a base for my wiring.

 

Now that's simple as you can get! You should have enough wire on these bikes to do three more than!!

 

after about three days of figuring out what wire goes where and what i need i had to go to germany for three weeks just got back and spent twenty meinutes on it today and had the old 750 up and going just have to figure out the turn signals

 

i got the turn signals figured out i lost my flasher ans ended up using the flashers units from my 1970 chevy truck and my 1976 chevy truck all is working good and all i have left is my set and it will be done

 

Not to be a total noob... but what do all the letters stand for in the wiring diagram? are they the colors of the wires involved? like what does r/w and b/w stand for? i know the basics of wiring diagrams like symbols for ground, battery, resistor, etc. Thanks for any help

 

Those are the Letters which correspond to Color Code of the Wires on the Wiring Diagram.

Yamaha falls short on Wiring Diagrams.
I can't begin to imagine the gross Time Lost of those who have had to rely upon a cramped, black & white, grid-styled, optical illusion that Yamaha provides as Wiring Diagrams.

I bring the Diagram over to an Old Hippie's House an let him help me figure-out the maze.
He takes a hit of acid and jumps onto the page and runs along the Circuit Lines yelling-out where he is and what it's connected to.
I almost lost him, one afternoon, when he took a wrong turn and got lost in the Turn Signal Auto Cancellation Unit.

That freaked him all out.

 

haha thats pretty funny. Sounds about right too. The wiring on this bike is ridiculous. Im eliminating it ALL but this minimum wiring diagram. The headlight, brake light, and anything else i need are going to be wired up my own way. Im also working on gettin rid of the starter switch, ignition switch, and key, and replaced them all with one car style mini key/ignition. Much easier! and its hidden near the motor instead of up on the instruments. Thanks for the help though!

One last question... what does the kill switch on the throttle grip kill? where does that run to? It must have some sort of relay or switch to enable the starter? im probably going to find out the hard way but any help works too!

 

Personally, ... the Safety Circuit ought not be eliminated.
For too many reasons to list.

Don't put an Automotive Ignition Switch on a Bike.
Keep the Start Button.
That way the Bike will never buck you off when you wasn't ready to go, or get somebody injured if you ever left the key in it and a little kid wanted to see what happened if it got turned.

The more Safety Items you eliminate or defeat, ...
The more dangerous that Bike is going to get.

 

well it has an "arm" switch to turn the power on and and a key with off/on/start just like a car, so its technically twice as safe as a car. Im not one to mess with safety stuff, i just meant i was moving it off the handlebars to a more hidden location

 

Doing the wiring on my 82 XJ 650 Seca and found this thread. I like the minimalist wiring set up and wonder how it has worked out for you before I begin ripping the guts out of my bike.
Everything you need still work?

 

Reed, you just answered your own question on what the kill switch kills.

Dave

 

I'm re-wiring a bike I got that came sans wiring harness using this diagram, and have a few noob questions from someone who is completely lost when it comes to wiring:

1.) The starter... is it already grounded? I only see one wire coming out of my starter connected to a post on the outside of the starter motor. I assume that's the hot and the starter is self-grounded?

2.) The alternator-rectifier connection... According to the diagram I should have WWWO (white/white/white/orange/brown?) coming out of my alternator. From what I can see I have the three white's grouped together, but I'm not seeing an orange/brown combo. I do have an orange/green though (maybe that orange is brown? It's pretty dirty and hard to tell... they're cloth-covered rather than plastic). Do those correspond with the brown/green coming out of the rectifier? Where's this mystery "O" wire? Also, I assume black is ground on the rectifier?

3.) I saw a link someone posted to a cafe site with minimal wiring diagrams, and there was no TCI shown on those diagrams. Do I need the TCI on this bike, or can I follow that diagram and eliminate it? My TCI is burnt out, and I'd like to avoid buying a new one, but if that's not possible since it's an electronic ignition, that's okay.

4.) Speaking of the TCI: The minimal wiring diagram shows the wires coming off the coils as R/W, Gr, O which is correct on my bike -- but I have none of those coming out of the TCI to wire into. Coming out of my TCI I have a four-block connector, and a six-block (with two blocks being blank). On the four-block, I have White/Blue/Black/Red w/Yellow. On the six-block I have Black, Orange, Grey, and then a wire that's fried and looks like another black? (hence the shot TCI...) I'm kind of unclear from the diagram where everything on the TCI needs wired in. I have a Blue/Black w/Red/Brown/Black/Orange/Grey coming off of the pickup coil -- so which goes to where? Does the four-block correspond to the TCI and the six-block correspond to the pickup coil, or are my grey/orange from the coils and the pickup coil getting spliced together at the TCI? That's definitely not how the diagram looks, but this is probably the part I'm most lost on.

Everything else seems pretty straight-forward, I'm just a little lost since I have some burnt-out wires and some missing pieces, and some stuff that doesn't seem to correspond. Help?

 

Okay, starter question figured out. It's self-grounded apparently and there's just a hot wire connected to the ouside.

The wiring diagram also makes WAY more since seeing as the PO had the four-block connector switched with another one on the bike. Total WTF moment, but I got that all straightened out.

I still seem to be stuck though. Everything is wired as-is. Brand new TCI. Brand new solenoid. Brand new regulator/rectifier. Starter doesn't turn over.

If I unhook the red/white from the solenoid and hook it directly to the positive on the battery the bike turns over. Otherwise, nothing.

 

Answered my own question again. Apparently I have one of those freak-bikes where despite having the side-stand switch off the bike, the blue side stand wire still needs to be connected to a ground to get spark.