2166 battery drain

[Correllkp]

Hello. I have a 2166 cub cadet mower. Something is draining the battery. There are three red wires connected to the positive terminal. The thick red wire goes to starter. Then there are two thin red wires. One I suspect goes to the key switch. The other I am not sure where it goes to but when I connected to the positive terminal I heard a clicking noise like a solenoid. This is with the key out. I suspect this is what is draining the battery. I tried starting the engine without this third wire connected and it started and even ran for a little bit. I tried a little while later without the red wire connected and the engine would not start unless the red wire was connected. The electrical schematic does not show three wires going to the positive terminal.am thinking this might be the fuel solenoid but looking for any advice there might be.

Thanks for all the responses. The red wire with the yellow crimp is definitely a factory job. It’s routed through the cable sleeves etc. Yellow crimp is mine. I broke the original factory round clip taking out the battery. Ohming out the red wire it is the same red wire connected to the key switch the hour meter etc.