Almost done rebuilding a 77 KZ750 twin, bike has 17K miles on it and has been sitting since '85. I've noticed the battery drains really fast (less than 15 mins) when the ignition is on, but engine off. The electrical system is currently only the ignition and charging, no lights or accessories are connected. When the ignition is on, I measure 4.5-5A being drawn, 0A draw when ignition is off. I'm using a 14AH lithium ion battery. When the engine is running, I measure between 12.5v (1000rpm) and 13.3v (~6000rpm) at the battery, so it seems like the charging system is working as it should. Is almost a 5A draw normal for just the ignition system? If not, any suggestions for troubleshooting where the draw is coming from? It seems like something isn't right because I would think I should be able to have the ignition on for longer than 15 mins without a completely drained battery.
Thanks,
Joe
Thanks,
Joe