78 XS650e build

[Zmccleary7]

I have the vision of a bare bones “Mad Max style” racer. I plan on only running headlights and tail lights. The PMA helps fit the bare no/limited wiring look, as well as from my understanding a better more consistent charging system??Additionally my electrical experience is limited outside of replacing office light ballasts. So it seems simpler for my smooth brain

I’ve printed and noted a wiring diagram I’d like to use, I’m still unsure in the capacitor tho.

 

[Zmccleary7]

I presume the proper term would be a "brat style" not mad max/post-apocalyptic

 

[Jim]

as from my understanding a better more consistent charging system??

Actually, properly sorted, the stock charging system works just fine.
But if your plan is going battery-less, the stock won't work. You'll need the PMA for that.

 

[Zmccleary7]

I'm on the fence about the capacitor, I've been running the pros and cons through my head.

pros:
Fits build idea
simplistic wiring
wont leave me stranded
weight reduction
I'm already kick only

Cons:
possible overheating of electronics
Possible electric surges or improper voltage
Dimming/flickering lights
fear my current Dyna wont agree with the capacitor

Plus more I'm sure you wonderful folks could inform me on.

 

[Its been a long time]

I'd be wanting to run the Dyna ignition system off a battery. Needn't be a big one as there's no electric start.

 

[Jim]

You could use a small lithium battery. Since it's kick only, it could be a small one that's pretty easy to hide. I'm sure your Dyna box would be happier with that.
And if you kept a battery, you could forget the PMA and fix up your stock charging sys.

Prolly be cheaper that way too.

 

[Its been a long time]

Agree with Jim on that.

 

[Jim]

I'm on the fence about the capacitor, I've been running the pros and cons through my head.

pros:

wont leave me stranded

From what I've read the last few yrs, the (most likely) Chinese capacitor is more likely to leave you stranded than a battery.

 

[Zmccleary7]

With fixing the previous charging system I wouldn't even know where to start, I imagine I can buy the reg/rec together then its just rewiring the rotor and checking voltage? I know I'll need a multimeter and I do believe I know someone who sells re-round rotors

 

[Jim]

I imagine I can buy the reg/rec

Roll your own.
From Tech...

https://www.xs650.com/threads/diy-reg-rec-5twins-and-jim.55842/

 

[Its been a long time]

There's excellent guidance on the charging system in the technical section. If you're going to go with a battery and original charging system, you'll be best using a standard rectifier and automotive regulator. The details are in the technical section.

 

[Zmccleary7]

Tike for a good read on lunchthanks both of you dearly!

 

[Wagner73]

^^^^^ Absolutely, what they said!

I’ve messaged a few sellers to make sure all the screw holes aren't stripped as well as checking various stages of rusting in them as well. I found a few that I like but I'm still searching for the nice green that came mounted on the 78’sthe search will prove successful soon hopefully when I discuss with a couple buyers

The '78 Spruce Green is much scarcer than the Star Black, so you will be having the best of luck if you find one!

But, as others have opined, painting could be a doable solution. Then you could focus on the best tank quality, immaterial of color. And tank quality may be more important (?). Best of luck in your search!

 

[Zmccleary7]

It'd be more then easy to lay down some tape and breakout the gas mask to paintQuality will be beat beauty any day of the week

 

[zrx1100]

Unfortunately, at one point I had exactly what you want, a cherry 78E tank but sold it middle of last year to a forum member. So, it is possible to find good ones...

And your word choice is certainly your own (and if intentional, props for creativity!) but I wasn't illustrating the whole poem versus the portion you used, but instead wonder -> wander.

that was a beautiful tank. I was too late to buy it off of you.

 

[Zmccleary7]

Unfortunately tax returns take ages so we're finally ordering parts today, I've settled with the PMA, simply because I'm lazy and have close to ZERO electrical experience, Additionally we're ordering new coils and a wire/connector kit from vintage collections.

My question currently is, Does anyone have any experience or knowledge on a boyer bransden power box (https://tcbros.com/products/boyer-bransden-power-box-3-phase-battery-eliminator) If not I plan on buying a smaller lithium battery as recommended.

 

[Zmccleary7]

Additionally I've only seen it mentioned twice in the forums, but has anyone used the voodoo vintage electronics tray?https://voodoovintage.com/products/yamaha-xs650-electronics-tray

They mention minimum trimming required, so I'm curious if anyone knows the extent of said trimming?

 

[Zmccleary7]

Took apart and unhooked all the electrical(par leaving the coils on the frame) We Labeled all the ends to there proper receivers as well dis-connecting the old regulator and rectifier, tomorrow we shall lift her and start re hooking everything from the alternator up.

 

[Its been a long time]

There's this alloy caliper adapter available from Motolanna. Unfortunately out of stock presently.

https://motolanna.com/ourshop/prod_...NC-Billet-Alloy-Yamaha-SR500-SR400-XS650.html

 

[Wagner73]

There's this alloy caliper adapter available from Motolanna. Unfortunately out of stock presently.

https://motolanna.com/ourshop/prod_...NC-Billet-Alloy-Yamaha-SR500-SR400-XS650.html

Wow, yes very nice...uses the 40 mm CL caliper as opposed to the 65 mm version.