I purchased a 1999 VZ800 as a project bike with issues which I'm working through. One of the issues is with the charging system on this bike. With the bike running I'm only reading 12V across the battery terminals and this does not increase when I rev the bike.
This looked like a typical regulator rectifier failure so new reg was purchased and fitted but the output voltage remained the same. I sent this back to the vendor as a faulty item and they replaced it but eve after this was fitted the same issue remained.
What seems to be happening is that when I start the bike the regulator output is around 13.5V but this quickly reduces to 12-12.5V. All three phases from the stator seem to be emitting a good voltage and all the wiring has tested good but I'm stumped. Am I missing something? Thanks Steve.