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I have an '07 Police Road King and have a problem with the brake light staying on. This problem began with a slight clicking sound and the brake light flashing intermittently when the ignition was on, then it eventually just stays on! I did have the grips replaced by a reputable mechanic and I pulled the plug in wires off of the rear brake switch and the light still stays on.
Have you checked if the wedge is still in place (item #4 in last image)?
Originally Posted by FXD2003Rider
The switch is located as shown in image 2 (p/n 2). Try to adjust the switch's position by bending out the wedge.
Here's how the brake activates the switch:
The pin on the lever (see image 1 p/n 1) pushes the plunger into the brake cylinder when squeezed... at the same time the brake switch which is mounted through the hole (image 2 p/n 3) is being released.
When you want to take off the lever from the handlebar and insert a piece of 4mm cardboard, the lever is pulled in a little allowing the pin to come off the brake switch's rubber cap. Now the lever can be removed without snagging this rubber cap.
When you re-install the lever, insert the cardboard as well and insert the lever as shown in image 3....
I inserted a small screw into the plunger and the screw head closed the gap and brake light and cruise work great. Make sure to use a small screw, pointed worked best to guide it in.
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