I have an 2002 Harley Davidson Roadking. The brake light stays on when I ride, it does not stay on constantly (yet), but this is a safety issue. Also witht his problem I can not use my cruise control, proabaly due to the fact that the computer thinks my brakes are "on." I have not noticed any other proablems or noticed anything else not working other than my nuteral light is not working.
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Re: Brake light straying on
Hello, There is 2 switches on your bike (like most motorcycles) and one of them is stuck on, broken, or the linkage to it is damaged!
Front switch is actually part of the master cylinder /lever, and the
rear switch is actuated when the right side brake pedal is depressed.
will need to take a multimeter and check them both for a short with no
power on using an ohmmeter. Another way is to disconnect the plug going
to the switches & check the brake lite to see if it goes off &
if it does that particular switch is in trouble and may need to be
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Hi, Anonymous appearances can be deceiving you must validate their integrity before diagnosing any brake light issue always check the bulb and fuse first for integrity a brake light staying on is usually caused by the front brake light switch, which is mechanical, not disengaging. On early models moving the throttle control housing closer to the front brake master cylinder is the main fix. On late models, the switch gets tweaked and needs to be realigned. A brake light that does not come on when the brake lever is applied can be caused by a faulty switch or no continuity in the wiring at the switch. The rear brake light switch is hydraulic and it is extremely rare to malfunction in a closed circuit condition causing the brake light to stay on. Usually, rear brake light switch issues are caused by no brake pedal free play or a sticky rear master cylinder piston. A brake light that does not come on when the rear brake pedal is depressed can be caused by a faulty switch, air contamination in the brake line, or no continuity in the wiring at the switch. For more information about your issue and valuable "FREE" downloads that you will need please click on the links below and for more specific questions or answer please feel free, at no charge, to contact me at [email@example.com] Good luck and have a nice day. Harley Davidson Manuals Mark Workshop http://partsfinder.onlinemicrofiche.com/stcharlesharleydavidson/showmodel.asp?make=hdmc http://partsfinder.onlinemicrofiche.com/stcharlesharleydavidson/showmodel.asp?make=hdmc Instant Tech Relief A must have !!! only $6 a month "CHEAP"
Usually when I see this, it is a bad brake light switch in the right hand handlebar switch housing.
Most of the time if the front brake master cylinder was incorrectly installed, it'll break off the little nub on the switch. This nub on the switch is what the front brake lever pushes against when it is released, causing the brake light to go out.
You'll need to open up the switch housing, unsolder the old switch, and solder in a new one.
But first, open the housing and you can manually press on the switch to see if the brake lights go out.
I'm assuming that you are saying that the brake light is staying on and neither the front nor rear brake lever makes any difference.
Check the postition of the front master cylinder and the throttle control switch housing. They must be positioned so that they are snug against each other. If there is too much distance between the switch housing and the master cylinder, the little brake light switch will be constantly in the outward postion turning on the brake light. Depressing either lever will have no effect.
If that's not the problem, go to the rear brake lever and check the adjustment of the rear brake lever. It must have some freeplay so that the rear master cylinder returns all the way when you let off the brake. If not, the rear brake will get tighter and tighter as you ride and use the brake.
Make sure your rear brake pedal has freeplay in it. when you slowly push the lever down by hand you should be able to feel some freeplay. if not the the reason it keeps staying on is because the vibration of the motor is actually pumping up your brake ( light too ) and not releasing it until it bleeds off the pressure.
The tail light which stays 'on' , is it the brake light or the normal light. (if it is powerfulthn its brake light & if it's dimmer thn its a normal light).
Remedy:- if it's brighter thn it is probabley the brake light switch which mayhave siezed or needs adjustment.
I have a feeling it is the brake light tht is staying lit all the time.