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Hello all, I hope you can help with my problem. I have a 96 m900 and the brake light is stays on. It just started the other day after I installed my Cycle Cat clip on's. I tried a new bulb/and installing it both ways. I also have a pressure switch on the brake which I tried disconnecting and just using the rear brake still with the same results. The strange thing is that if I depress the rear brake the light goes totally out. Any insight cuz this just sucks and I hate electrical work.
 

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I've had the same thing happen. Two fixes (though I can't see why you would have removed any of this stuff):

-- Did you completely remove the taillight assembly? If so, you probably rewired it incorrectly. My Haynes manual is wrong on the wiring diagram.

-- The front brake switch is jacked. Did you remove it?

HTH.
Dion
 
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I had removed the assembley but I put it back and it was in working order for a few weeks. I also disconnected the pressure switch from the front brake. Were you talking about the rear and if so what does jacked mean? Thanks
 
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Sorry went back to the email and saw you said front brake. Any more suggestions? It is so strange how it just suddenly stopped working.
 

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i can't figure out why this is happening to you, but i'll try to help anyway. dissconect both brake light switches. with the key on, brake light should be out. jump connector at front switch. turn key on. light should be on. remove jumper. light should be off. do the same for rear brake switch. this will tell you which switch is bad. also make sure bulb is in correct. if in backwards, the brakelight will be on instead of the tail light.
 
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Sorry my electrical expersise is lacking, what do you mean by jumping the connection? thanks for the response.
 

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bridge the connector with another piece of wire, to simulate a closed switch. perhaps you have a freind who can help?
 

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I didn't want to start a new thread - but hoping for responses from people who have run into the same (or similar) problem.

I dropped the bike a few months ago on the right side - had every damaged component replaced (rearset, rear brake pedal, rear brake light switch). After a month - the rear brake light switch has become misaligned it is currently on all of the time now.

Now my choices are as follows -

1 - take the right rear set off and try to correctly position the rear brake light switch (this will be a b!tch because I am a moron and don't even have any friggin tools)
2 - rig something to add some length to the little plastic jammy (I call it a nipple) that comes out of the rear brake switch - I was thinking of melting some hard plastic and molding it and then super glue it on to the tip.
3 - Disconnet the switch as I really only use the rear brake when I use the front brake.

I don't know why it is out of alignment now and don't know which component would be easiest to adjust (the brake lever bolt - the brake light switch - or the rear set).

Just looking for some feedback before I go an try to melt that plastic on.

Thanks
 

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I dumped my bike on the right side a few months back and ended up with an intermittant light. The brake pedal was bent in and any vibration would cause the brake lite to go on and off. I noticed that the linkage was loose, so I just took a pair of pliers and bent the pedal back out a bit. It seems fine now. Before my expert fix, I could tap on the side of the pedal (toward the bike) and that would cause the lite to go on. Now it works as it should. Hope your fix is as easy.
 

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I had a similar problem after adjusting my bars. Turned out the microswitch under the front brake lever had come loose. I think this switch is a normally closed (NC) which means when NOT activated the contacts do connect. I didn't ohm it out but to make sure it is NC but it makes sense. The microswitch is depressed when the front brake is not pulled making the normal state Open (no connection). Therefore when you pull the lever the switch releases completing the connection and turning on the brake light. If you don't have the microswitch depressed the brake light will stay on. If you have removed the switch altogether try shorting the two wires together. If you short them together and the light turns off then the switch is a normally open (NO) but the rest of my ramble remains true.
 
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