Using a more modern Speedo and Tach

[Cronos]

Hey Everyone!

So I recently have ventured back into the life of having two wheels that go very fast and am in the process of cleaning up a 1981 GS850L, the bike is very clean and mechanically is nearly perfect. One thing that's personally just bothering me is the speedo bounces a lot and can be hard to read when above 60+ mph and the knob used to reset the Mileage is gone. So right now I'm contemplating replacing the whole gauge cluster with a more modern piece even digital speedo with a analog tach or something like that. I know it may be considered blasphemy by some but I like the aesthetic of old school with modern tech. Anyways, I wanted to know if anyone has tried doing something like this and may have any recommendations? Thanks and I'll try and get some pics of the bike up on here asap!

 

[posplayr]

there are several active threads on the subject.

 

[Grimly]

A bouncing speedo generally indicates the cable is dried out and snagging internally - not good and not long left on it in that condition. You can extend its life by lubing it properly with gear oil, and put off buying a digital one until it suits your convenience.
If you choose to lube it, disconnect from top and bottom, remove the inner entirely, and shoot down through the outer with kero, WD40, etc. Wipe the inner clean with same. Then lube outer with gear oil - let it dribble down through it and let it drip dry for an hour or two; same with the inner - lube it with gear oil, wipe it off and fit it to the outer. THIS BIT IS IMPORTANT - pull the inner up and wipe the top two or three inches drier - not running with oil. If you leave oil up the top, it will migrate to the inner workings of the speedo and wreck it.
Happy hunting.
Ps. same for the tacho cable.