speedo dial

Hi all
just bought my thundercat today
on the test drive everyting was fine but on the way home I stopped to fuel Up and when I set off again I noticed the speedo wasn't moveing
any advice or what to check would be great full
thanks

See if the speedo cable came out by the front wheel.happen to me once just before a speed camera lol. It just screwed back in

Thanks mate il check that out

The same happened to me, except the inner drive cable slipped out so I had to get a new one. Other causes could be a snapped drive cable or a knackered speedo drive on the front wheel. Start with the easy ones!

Just checked and it seems tight down at the wheel . I noticed there's a few screws missing that holds fairing togetor were would I get replacements and this mite sound stupid but all my bikes had a sight glass to check oil how is it done on the thundercat ?
Thanks

You can identify parts from this thread.
https://www.yamaha-thundercats.org/t6242-genuine-yamaha-yzf600r-offline-parts-catalogue

the Cat has a sight glass for checking oil level on the right hand side, it's almost obscured by the fairing but not quite, Here is an image I found with a google image search.


It's possible to get kits to replace fairing bolts (if you want to replace them all) like these, or these.

Thanks fatcat

The speedo cable is the only fault I have had so far...

https://www.yamaha-thundercats.org/t7291-thundercat-has-a-problem

Haha brilliant !!
I'm goin to strip the fairing tommorow and closer inspect everyting

J.P wrote:...all my bikes had a sight glass to check oil how is it done on the thundercat ?

That info' is also inside the Owner's Manual, if you don't have one here is a link for a pdf version.

J.P wrote:...I noticed there are a few screws missing... where would I get replacements...

If you're not bothered about them being original, eBay have a large choice. Stainless, aluminium, titanium, whatever your budget allows. Just take time to measure them first.

Thanks tee-forty always good to have the manual

When my speedo went it was a stripped worm gear in the gear unit (they're made of plastic).

I thought I'd just bought a new one and replaced it, but all I can find now are whole gear unit assemblies.

Gear unit ??

It is in the front wheel - the bit the speedo cable screws into. The early units were made of nylon, was 'upgraded' to brass later on. I've been through a few units, including the brass upgraded one - my suspicion in my case is it was manhandled by the tyre fitment place as the unit used to go wonky not long after a tyre change.

In the gear unit, there are two items - the gear gizmo itself, sadly not the cheapest item and a tabbed washer, called a clutch meter [think what is supposed to mean is a mechanical fuse for the speedo (meter) ]. This latter unit can break and is not very expensive (iirc a few £'s).

If you have an electric drill, put the bottom (front wheel end) of the speedo cable into the chuck - if the speedo moves then cable and speedometer unit OK and it's the gear hub or clutch meter.

Great advice thanks

Well took speedo cable out and the end bit that goes into the wheel just fell out of cable looks snapped ?I'm guessing a replacement cable is needed

Yep, looks like it!

They are usually under a tenner for a pattern part, quite a bit more for genuine Yamaha.