Installed a neat 5mm LED voltage meter on my dash without cutting, Gammatronix 5mm
Put it in the push pin hole on the right, cabled tied it to the dash bracket, and applied silicone to seal and waterproof, even put on a M5 washer over the bulb to make to look neater..
Tapped the wires to the city lights, and voila!
Was pretty proud of my work but, alas! it didnt light up properly, amber when it was supposed to be green at 13.2 volts or greater, to indicate proper charging.
I did a multimeter test at battery and say that the figures were right, but when I tested the wire side of the city light cable, it read around 0.9 Volts less then the battery, at the male connector, with the city light disconnected.
Voltage Drop! only when i am at 4k rpm on the highway would it go green, meaning its measuring around 14.1- 14.2 volts, so charging seems fine.
But voltmeter is semi useful only with this
after doing some research it seems common for older bikes, with bad battery terminals (mine is still quite new) or the ignition switch contacts wearing out, or bad grounding somewhere.
Any tips for stuff I can troubleshoot? I was slightly rough with the cable when splicing, could I have taken off some of the strands inside?
I read a way is to rebuild the wiring with a relayed one, but I have no idea where to start.
Im planning to do a voltage test on the left city light and see if its the same to check for wire strand damage.