speedo not working

Leon888 said:

Is it the sensor mounted at the rear wheel?

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yes

Does anybody know what checks I should make before I order a new one?

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Its a sealed unit,...not much to check really.You have'nt changed the steel disc bolts for titanium have you?

And where is best to order parts?

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An Aprilia dealer?
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The sensor is silly money at a dealer.The good news is that it is a common Piaggio part.Have a look on ebay.

You have'nt changed the steel disc bolts for titanium have you?

Or stainless steel.

As above,that will stop it.

check the sensor hasn't moved and is mounted correctly as the distance between the sensor and bolt heads needs to be correct.

If the clocks have been of the misting variety, and they nearly always are, there's a fair chance that the ribbon that connects the lcd to the pcb is not making a decent connection.
Sometimes, a quick clean with a soft cloth will sort it.
There's a bar that holds the ribbon sunug against the pcb, pull it back, and the ribbon just slips out for cleaning.

here's a pic, don't take any notice of the red arrows...you cab see the ribbon on the l/h side where it comes around the back of the pcb.

If you've not been inside your clocks yet, here's a few 'how to' guides

How to fix those f'oggin gauges

How to fix those f'oggin gauges.. part deux

There's about a weeks worth of reading there...but the weathers crap, and with a bit of luck, you should have it sorted before Spring :thumbup

At the end of the day, I'd give it a crack, you have nothing to lose other than a few hours of your time.

Good luck fella.

Tifa on the fix you done could a goretex repair kit be used as the patches seem to be a bit like rocking horse ***** :dunno

I don't think the gore tex repair patches are actually breathable, so imo not really suitable. But there's a few conflicting views on this.
The patches I used worked OK, but they still didn't allow enough air movement in the clocks.
I recon for a perfect fit, you'd need about a dozen or so of the patches I used.
They ARE available in the US, if you want to go this route, leave a post (or two) on AF1 or other motorcycle/automotive websites.
If I was doing it again, I'd probs not use the gore tex again for all the trouble it caused sourcing it.
Instead, I'd be drilling dozens of 2 or 3mm holes along the very bottom edge of the clocks
(bigger the better as long as they're not big enough to let the creepie crawlies inside)
Also, when putting them back together, I'd be using the silicon sealer really sparingly, and only along the top edge & side edges of the glass.
Again, use as little sealer as possible, so that you can pop them open again without stressing the glass. (really brittle!!)
I'd be happy to risk a smidgeon of dust getting in there.
Providing you don't go mad when you seal them up, you should be able to open them again to remove dust in several minutes.
At the end of the day, I think a bit of dust will do wayyy less damage than moisture.
Moisture is the killer.

T,,yer know fine well if they're steamers they always will be.

i have just changed the case on mine to a rs50 as they have a vent in the rear ,ill let you know if they are better

The main problem is lack of ventilation, but also, the glass on the clocks is far too thin. If it were Few mm thicker the inslation properties of the plastic would be better, and it wouldn't be so cold on the inner surface attracting the condensation.

Leon888, did you get your speedo sorted? Mine just died halfway through a ride:banghead