Speedometer Back Light Issue

[Yami4Life]

Hello fellow FZ6ers... Forgive me for most likely posting an issue that has been addressed before but I did a forum search on the subject with no result.

A few months ago the back light on my speedo would start to flicker anytime I would start riding hard (100mph+). As time went on it started flickering more often and at much slower speeds (30-40mph). Now the back light basically won't come on at all with the exception of it flickering on for about 2 seconds until I hit another bump in the road and goes out again. This led me to believe that I obviously have something loose in the wiring or something back there. So I stripped the ol' girl down and I don't see anything loose in the wiring at all. The unit itself is sealed up so I didn't know if I should crack it open and try to mess with it, didn't seem like a good idea to me. I should definitely point out that the speedo itself works perfectly other than the back light, so this isn't a issue during the day, but it's a real P.O.A. not having the light work at night.

Thank you to anyone who took the time to read this and I appreciate any & all advice given, even if it's sarcastic... I love a good laugh

 

[brman86]

Hi, here my first post! I'm from Argentina, living in France right now, I have a FZ6 S 2006, everything goes great just a little problem. The same as you... my speedo works perfect but the back light is dead!! So it's not happy to ride at night! Did you finally find the reason of this issue?? I do not want to open the speedo... I'd probably screw it up!
I've looking about this for a while on internet and I couldn't find much... (I've looked in spanish) so I guess we are just a few with this issue.
I hope you have some good news for me!
Thanks a lot and regards!

 

[ChanceCoats123]

The intermittent off/on points to a loose connection between wires in the harness, or between connections on the printed circuit board inside the speedometer housing. If ALL of the wire connections between the main harness and the speedometer look good, then it's inside the speedometer. I'm guessing the backlight is LED based, and they do have a life span before they burn out (especially if there is some kind of voltage/current surge).

It could be something as simple as one of the backlight LED legs breaking off the PCB. My recommendation would be to wait for a few other members to weigh in (I know some of them have opened up a speedometer before). I don't think the process is difficult, but you have to be careful.