fatboy rear tail light
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Cruiser
Joined: Aug 2010
Posts: 160
Likes: 0
fatboy rear tail light
My fatboy's rear tail light turns it self off when I'm riding....at night when the bike is cold the tail light works just fine but after riding for a bit the tail light turns off....the blinkers and brake lights work just fine...no tail light at night is bad....any thoughts?
Stellar HDF Member
Joined: Oct 2009
Posts: 2,054
Likes: 26
From: Florida
Start simple. Remove the tail light and check the socket. I've never heard of a bulb that only works some of the time but stranger things have happened. As for the socket, it may be a little warped. Maybe it got hot and some point? If it's like all the others I've seen then it's made of a gray, hard rubber material that is susceptible to warping under heat such as from a bad bulb. It's possible that when the bulb warms the socket up it causes it to warp/expand a bit and the contacts no longer line up with those of the bulb. Then once the socket cools down the problem goes away.
I had something similar to this except that in my case, the socket first got melted and warped when I had a stop light that was always on. One I fixed the brake so the bulb worked as it should, the partly melted socket's performance was spotty. I was able to remedy the problem by bending the connectors inside the socket out a bit to ensure they were making contact with the bulb. This completely fixed the problem. If you try that, make sure you unplug the socket from the bike. Sticking a sharp metal object like an electrical pick in there and touching two different connectors will result in some slight fireworks!
I had something similar to this except that in my case, the socket first got melted and warped when I had a stop light that was always on. One I fixed the brake so the bulb worked as it should, the partly melted socket's performance was spotty. I was able to remedy the problem by bending the connectors inside the socket out a bit to ensure they were making contact with the bulb. This completely fixed the problem. If you try that, make sure you unplug the socket from the bike. Sticking a sharp metal object like an electrical pick in there and touching two different connectors will result in some slight fireworks!
Road Master
Joined: Aug 2006
Posts: 819
Likes: 6
From: Long Island N.Y.
Check the fuse. Mine looked good on the outside, then I started pulling em out and found some have the contacts dirty and corroded. Worked better after cleaning and installing new ones. Just my 02 cents.
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