mileometer stuck

[XTlegend]

On my GS650 speedo, The tripmeter and speedo itself work fine. Any ideas? Is it worth taking apart (if thats possible). Maybe an insect has crawled into the workings or something? Cheers.

[Suzuki mad]

The speedo is very hard to take apart as its a one peice unit.

There was a peice in classic motorcycle and mechanics about opening one up and repairing it.

[RobC]

It is possible to take apart, but I would think some of the gears are stripped inside it. Best bet would be to search around for a replacement speedo.

[hampshirehog]

The mileometer on these runs a plastic gear against a metal worm drive. Chances are that the plastic has stripped or worn against the metal.

Either that or someone has clocked the bike and not put it back together properly and it's just a jam - the units, 10s, 100s etc all have to click in to place when you adjust the mileometer reading.

I'd take it apart and have a look before hunting down another one. If your instruments are like this set: http://www.alpha-sports.com/spst/1981%20GS650E/48.htm

I would cut the inner case (part no. 1) with either a dremel or a hacksaw (go careful) and glue back together (mark some lines so that you line it up properly on reassembly). The other method, to pry open the metal ring needs to be done real carefully. If you b*gger it up you'll see it every time you ride it. You can be pretty untidy cutting the case as it's covered by the outer case (part number 4).

If you need a replacement a later GS550 fits (I think). I can measure for you if needs be.

[north49]

re your stuck speedo...if you havent fixed it yet.... I have had two speedos and one tach stop working. They start out with needle drag and eventually stop working. Išve taken them all apart and found that the lubricating oil has turned to syrup. The fix is to get some non residue solvent like laquer thinner and a small brush and clean the old thick oil off everything.
These guages can be opened up by carefully prying off the metal bezel around the glass. Just go slowly and lift a screwdriver width at a time. Replace the bezel by crimping it back all around the glass.
Hope this helps.

[silverhorse47]

Also there was a genius how-to done by someone? on this site who advised using a drill press with a dremel size cutting wheel in it to carefully and neatly saw the case apart. It made a very neat job, and didn't damage the bezel.
S.

[chef1366]

I've had mine open many times. I pry it apart and press it back together. The outer shell covers up the pry marks.
I put a larger 140 speedo in a smaller 80 pos 85 speedo case. Looks and works great. The auto-off turn signals work too.