Anyone know a good way of testing a regulator/rectifier without the bike it's for?
I hooked one up to an AC power source and measured the regulator output but that's not 3 phase.
Use an ohm meter to test the diodes.
The charging voltage is variable through the regulator. It has to be hooked up to the battery it's charging in order to check whether the regulator is functioning properly.
Diodes are good, yep.
The bike came with a bad RR. Tested the stator as good, harness to battery is good, new battery and the last one was OK anyway (cranked a Honda Accord with it this weekend, hah). I got another RR used with 6k miles, but I'm only getting 13.0V at 4-5k, and that's not more than idle. I think it might be a dud
Diodes are good, yep.
The bike came with a bad RR. Tested the stator as good, harness to battery is good, new battery and the last one was OK anyway (cranked a Honda Accord with it this weekend, hah). I got another RR used with 6k miles, but I'm only getting 13.0V at 4-5k, and that's not more than idle. I think it might be a dud but I was curious if there was a test other than getting yet another one to see if that works better.
Thinking of getting an aftermarket part.
Stator was putting out around 50-60 V AC across each pair of the 3 outputs at 4kish RPM. Seemed right at the time. Even put a beefy resistor in parallel with the meter to load it.
"My bike won't start, and it makes a clicking noise." sticky thread.
This might be useful! It's a flow chart. I think I'm having a charging problem too ((((((((
http://www.crowitis.com/images/fault_finding.pdf
so what equals a short trip? i ride 3.5 miles each way riding around 6k RPMs.
Just swapped out the old RR with a Mosfet type (Shindengen FH020AA) on my 999. The stock RR was buried in the battery box near the front header, and being the Shunt type, it was getting very hot and unstable. Made a simple aluminum holder and secured it on the horn bracket mounts. Now it's running cooler with consistency in charging voltage! Thanks for the great info referred in this thread