u/Caryit22

I have a 1999 Yamaha G 19 E and I am converting it over to a lithium battery. I removed the charger port which had one main negative and one main positive along with a secondary smaller red wire. The main red wire was connected to the main side of the solenoid that the battery comes to. I’m trying to figure out what to do with the small red wire or if that main positive wire is necessary as well can anyone help me out, please?