Alright I'll bite.... A Honda with charging issues? No Way! (lol - j/k) I have fixed my share of VFRs, throw in a Yams and Zuks....
Anyhoo - this is my charger debug it procedure that usually points to what to do.... The drill.... as listed, you need to know your battery is good - first.
Get out the multimeter (I see you already have done some) a go to town on this....
"The Drill"
Sorry for your electrical troubles. Well, looks like you gotta do…. “The Drill.”
Go through all your connectors for burnt leads, dig deep. Crispy wires? Not good. Your gonna have to fix that!
Then---Go through this starting point quick list. You will need a multimeter too.
Steps:
- Recharge battery overnite - then to take it to Autozone, Batterys Plus or similar to load test. -- Good? Bad? – An iffy battery can fake you out and act like a bad R/R. Buy new if needed. -- A GOOD BATTERY IS THE FIRST THING!
- With good battery fire it up, warm up for a minute or two.
These are R/R quick checks---
--- With voltmeter at battery get voltages -- idle volts? 5000 rpm volts? What’s the numbers? Should be in 13ish min idle and in 14s at revs. If in the 12s at idle, try at 1900 rpm. (It’s not unusual for the system to be in discharge or no charge at idle.)
- Check stator
- 1. Pull connector apart. Set meter to resistance. Check pin to pin stator side, 3 yellow wires, A to B, B to C, C to A. What’s the numbers? 3 separate readings --Should be less than 1.0 ohms. (Engine off)
- 2. Check continuity from each A,B,C pin stator side to ground, -- -should be infinity - nada nothing. no continuity. -- 3 separate checks. (Engine off, again connector is apart) -- Again, what's the numbers?
- 3. Crank it back up. Do another pin to pin thing, but set meter on AC volts. idle and 5000 rpms. What's da numbers? Should start 15 -20ish and climb 50ish and more. Again – 3 readings stator side connector and still apart.
- Repeat hot if you dont find anything wrong. Sometimes the stator will be fine cold and be a problem hot.
(If you find the probem cold, you dont have to redo this hot)
Come back with your numbers written down... GL Steve..