Need assistance. Left side horn not working. Eeks out a weak meep on the right.

[XSSIVEUS]

The problem seems solved, but I wanted to add some background. For many years some vehicle horns had an adjustment screw that would increase or decrease the intensity of the sound by tweaking the mechanism (usually controls the tension of the horn diaphragm). I've never had a need to touch those on my 1100s but I suspect that is what they are for and why turning in and out changed the sound intensity.

[oldyam80sg]

Horns are especially important as they changed the traffic patterns where I live and most people at a stoplight look at their cell phones not traffic signals.

[bikerphil]

most people at a stoplight look at their cell phones not traffic signals.

Ain't that the truth.

[bikerphil]

Pic of the horn adjustment screw...

[Radioguylogs]

The problem seems solved, but I wanted to add some background. For many years some vehicle horns had an adjustment screw that would increase or decrease the intensity of the sound by tweaking the mechanism (usually controls the tension of the horn diaphragm). I've never had a need to touch those on my 1100s but I suspect that is what they are for and why turning in and out changed the sound intensity.

From my experience, the adjustment screw seems to control the frequency (pitch) of the sound. When you have two horns, one is usually a higher tone and the other is a lower tone.

[bikerphil]

Another thing to look for is a voltage drop and/or a bad ground. The horns have hot power to them all the time with the key on. The horn button grounds them.