Hey all! So I recently went down the rabbit hole of trying to fix the electronics on my 1975 Suzuki TS185 and it's a mess!
The first thing I want to get fixed up is the horn, so I went about finding the wires. I'm at a complete loss at this point and was wondering if anyone would be willing to give me any insight. Here's what I know so far, and first off here is the wiring diagram:
So the red arrow is pointing to a wire that has 6 volts running through it (6 volt battery, tested the wire). I found this by just following the wire that came straight from the Rear Break Switch and using one of the splits that was near where the horn should be.
I then found the wire that the blue arrow is pointing to, that comes directly from the switch. I did this by opening up the controls on the handle bar and following the correct colored wire. I assume that the switch is grounding and completing the circuit to the horn. Here are some images of the horn switch and wire:
So at this point I connected up the wires, turned the bike on to make sure there was power coming through... nothing! Now to make sure the horn is getting power I took the wire that was connected to the horn switch and tapped the frame the horn works perfectly.
So at this point I'm thinking something must be wrong with the switch, but looking at the internals everything looks fine... except for one thing. The diagram above shows that one end of the switch should go to ground, but theres only one wire coming out of the switch. Is something wrong here? I have no idea where ground should come into play with this switch. Does anyone have any ideas?