speedo issues, going backwards slowly :S

[Pol Anorl]

for some reason my speedo on my xj 600 stopped working, took out cable its oiled up and not broken and looks pretty new so cables not broken..

So i decided to leave it for now and take a look when i get a chance but now ive noticed my miles are going backwards slowly, every 50 miles drops by around half a mile :S

does anyone have any idea whats causing this?

been using gps for speedo at the moment so thats not an issue but i need my speedo sorted.
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GOOD GAME BODYGUARD: https://i.imgur.com/8WePGgf.jpg
20:30:37 Pyro.: I don't sort of like men, I take every advantage to choke on dick.
Jewlio Iglesias: You live in Liverpool - Chances are, the front door has already been kicked off the hinges

[c_dug]

Maybe just the vibrations with no cable holding the mechanism in place?
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I am a bellend, I am a man of constant sorrow, I am a gummy bear, I am a rock.

[iooi]

Drive in the front wheel gone....

Someone been greasing it?
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Just because my bike was A DIVVY, does not mean i am......

[Pol Anorl]

speedo cable is still in, it may well be the drive in the front but ive not had time/can't be fucked to take it off to check it, it should be greased up, bikes only on around 30k miles
____________________
GOOD GAME BODYGUARD: https://i.imgur.com/8WePGgf.jpg
20:30:37 Pyro.: I don't sort of like men, I take every advantage to choke on dick.
Jewlio Iglesias: You live in Liverpool - Chances are, the front door has already been kicked off the hinges

[Boxing]

... My bikes done 10,000 miles and someone hasn't been greasing stuff, and now the pivot on the swingarm is stuck stiff.