No start/electric problem

[jugz22]

I have a 96 katana. I recently was riding it around, got home and sometimes i leave the key in it, so i left it in the ignition, but this time i didn't turn the key so all the lights/electronics were kept on for a few hours and drained the battery. I gave it a charge, and it started back up fine and I cruised around for a bit. Left it over night and tried to start it...no lights, no start, nothing. Took the battery out, and took it to get replaced because it was old anyways. So I just plugged in the brand new charged battery and still nothing. So it's an electrical issue of some sort, by I don't know what to look for. Anyone know what to do?

[KatanaGSX92]

Check the main circuit breaker. It's somewhere under the seat but I don't remember exactly where. You can download the service manual from the Katana Wiki in the top menu of this forum. Also check to make sure your battery ground cable is good.

Here's what it says about the circuit breaker:

Circuit breaker
7 A circuit breaker (where fitted) is mounted
behind the right frame cover or under the seat
(see illustrations). If an overload occurs in
the main circuit, the red button on the circuit
breaker will pop out approximately 1 to 2 mm
(0.040 to 0.080 inch).
8 If the button pops out, let the circuit breaker
cool for about ten minutes, then push the
button back in.
9 If the circuit breaker continues to pop out,
check the wiring harnesses for a short. Never,
under any circumstances, bypass the circuit
breaker or replace it with a breaker of higher
capacity - the overload could damage
electrical components, melt wires or start a
fire.
1

[92xjunker]

The main breaker is between the battery box and the tank on the right side(white with a red dot) push the dot. Check for power at the fuse box, check your ground connections