The JB is a black hole for voltage.
So it has been said and demonstrated many times :-).
hmrct, if you don't have the Two-Wire Mod, you might check into it.
Blue-wire mod, yes. So far, not the two-wire mod. The Blue-wire mod made sense to me as far as bypassing a potentially problematic relay. As a bonus, the headlight is on when the ignition switch is on, just like most normal bikes. NOT having the headlight come on until the engine is running is a neat idea that failed miserably in execution on the VN750. That bit of Rube Goldberg compensatory technology wouldn't even be "a neat idea" if FedGovCo hadn't mandated headlight ON all the time and then coerced bike manufacturers into making the headlight switch a useless item :-(. Fargin' bastiges!
I'll take another look at the two-wire mod. I'm of a mind to give it a try with the notion I can undo it if I don't see any of the claimed benefits. I think the bypass of the neutral safety switch was the reason I didn't go ahead and "just do it" back when.
Apropos of nothing, my TOC MCCTs arrived yesterday. Gorgeous workmanship. Maybe not worth the price to some of the cheapskates on this forum :-), but as some have said, it's nice not to have to worry about the quality of an item that, if it comes apart at 6,000+ rpm, things go sideways in a hurry. Besides, too much other crap on these bikes to worry about without adding more crap to the plate :-).
One1: thanks for taking on the research project. What I've found so far...
There are a few references to the Muzzy's fan blade (presumably more efficient than the stock plastic blade assembly), but as best I can tell, it's no longer available :-(. (Can't verify that here at the day job because access to auction sites is explicitly blocked). SPAL fans show up at the top of a short list when searching for "low current draw radiator fan". Don't know what the diameter of the VN750 stock fan is (haven't gotten motivated enough to break out the tape measure yet), but a 7.5" SPAL fan draws about 5.5A @ 437 CFM. That's part of why I was wondering about the current draw and CFM rating (or RPM) of the stock fan. If a 9" fan will fit, we can get 590 CFM with a 6.5A draw. As expected CFM increases with the current rating. Just gotta figure out what the baseline specs are to know what options are viable.