I need some help with my bird (CBR1100XX Model 1999 PGM FI first model.) as I am stuck now for a while with an Electrical issue.
A few month back my Tail light (bottom) stopped working while regular light is on. My front beam (both High/Low) are working fine.
when I break, both Top and Bottom light work fine, index also work without any issues.
I have had many issues in my Loom in the past and it always ended up being a corrosion issue (previous owner left the bike outside for 3 year not using it at all). Usually a good clean on the connectors would fix any issues I have but in this case, no matter what i do I cannot get the rear light working. Looking at the wire diagram did not help either as I simply do not understand how the Break Light and Index would work and not the normal ones. I gave a good clean to the cluster of Greens in the middle of the loom as it was a huge source of issues in the past but it did nothing.
Recently I also experience the FI light turning on after I would hit a rough patch of road, this to me indicated that I must be having a false contact somewhere but I would not manager to find where until yesterday.
I bought a Second hand loom for that 1999 model and tried replacing the entire thing, it worked out just fine until I tried to fire the bike which failed as the FI light was blinking. After looking through the install i noticed that unfortunately the loom is not the right one as I am missing 1 connector in the condom under the tank. while changing the loom I found out that the previous Starter relay switch was loose so I finally found where my bike was losing the FI after hitting a bump.
BUT that being said, my rear light still did not work ! once again Index work fine, and on Breaks (front and back) both rear bulbs work fine. I will have to put back the old loom as I am still missing that 1 connector so unfortunately I wasted my money on this one. but I have no idea anymore where the issue with my rear light comes from.
Anyone ever experienced this ?