by 250_Sprint » Tue Sep 07, 2021 8:23 am
A mechanical ammeter needle will only deflect if the charging circuit is working properly, the ammeter is not defective and if the ammeter is the proper ampere range for your application.
Assuming your charging circuit and ammeter are functioning properly, but the range of the meter is +30 amperes / -30 amperes, you may not ‘see’ the needle deflect. The range of the meter is too high for your application. I have a meter from a Ford Model T and it’s range is +20 / -20. These bikes use a range of +15 / -15. The needle would deflect more if the range was +10 / -10.
Make sure all of the wiring is continuous with no breaks.
Make sure all terminal ends are clean of corrosion. Corrosion adds resistance. Elections hate that!
Make sure all electronic devices in the circuit are functioning as designed.
Don’t assume a new part is functioning properly or you may be chasing your tail.
With the engine not running, a 6 volt power source and a multimeter, you can make sure electricity is getting to where it needs to get, then check to see if it is coming out as it should.
I have a battery charger rated at 6V, 1.25A I use as a power source for 6 volt projects.
Good luck. Have fun. Ask questions.