kz 650 sr regulator rectifier- I don't own any 650

HI guys working on the above bike and was wondering the specs to check the rectifier, i only have a book that is for the 3 phase and this is a single phase, the alternator leads are puting out 76 v ac, but at 4000 rpm i get very little difference in battery voltage.
got any specs or help fire away

Very little difference, as in no increase or decrease?

Best way to test is to swap out with known good unit, but that isnt always easy.

The only thing controlling the voltage/current output of the alternater, is the R/R unit, therefore... its toast, or batt is toast.

Is batt known good batt? New is best.

GL.

batt seems good it starts the bike up no problem, when i checked the resistance one way i got resistence then checked it the oppisite on the same two leads i get open circut. well i am in oregon any one got a known good 1 phase rectifier i can swap out?

My bike had a similar issue. I own a 1978 KZ650 SR. We tested the battery and turned out good. The rectifier was bad and needing replaced. However, i found a website that makes these bad boys NEW! Ordered one for about $98 dollars. They cover a large amount of old KZ's. Here ya go brother: www.oregonmotorcycleparts.com/Products.html