Adjustment
1. Turn the control screw on the back of the horn a quarter turn at a time in either direction and adjust the sound by ear (see photo 22.4).
2. After adjustment, block the adjuster screw with paint.
Removal
3. Disconnect the negative cable from the battery.
4. Disconnect the positive power wire from the horn, and remove the bolts securing the horn to the bracket. Note the ground strap under one of the mounting nuts (photo).
Installation
5. Install in the reverse order of removal.