Strange scraping noise

[gibbonfunky66]

Hi there
Just recently my TRX has started making a strange scraping noise that (I think) is coming from the front end (hard to tell with a helmet on) above about 10mph, and only after I've done about 10 miles. It's definitely wheel related, as it does it with the engine off, but I really can't tell where it's coming from. It sounds like something scraping the inside of the mudguard, or possibly the pads/discs, although putting on the brakes doesn't stop it. Equally, it may be coming from the back... hugger maybe? I can't see anything that could be rubbing when I stop and have a look - it's recently had Metzeler Z8 Interacts put on it (which I love) - could they be expanding that much when warmed up?
Really at a loss - i don't think it's dangerous, but when it gets louder than the Art cans it's a bit embarrassing....
Cheers
Simon

[Snod Blatter]

Rusty speedo cable? Does the speedo needle stay still? Mine has made noise for a few thousand miles and has just recently started to make the needle waggle about, time for a new one..

Otherwise what about the chain? Or perhaps the front sprocket is knackered?

[QuickDraw]

Do you have stands to lift it and turn the wheel/s? My blue-spot pads make a subtle but odd sound on the wave discs sometimes (new pads & discs). I've checked closely quite a few times. Everything secure. Bike stops hard enough to smack me on the butt when needed. Just seems the pads maybe don't return properly sometimes?

[gibbonfunky66]

Snod - it was indeed the speedo cable! On the way home last night, it was doing it again and then suddenly stopped. I looked down at the speedo, and yes, it had stopped working. It's actually a pretty new cable (3 months) so I reckon it's actually the mechanism in the speedo. Time for a new cable and some WD40 i think.....(Brett, i have had that with the blue spots too, i just have to keep the pistons clean and it seems ok)
Cheers both
Simon

[Snod Blatter]

What brand of cable did you buy Gibbon? Just interested as I'm in the market and would like it to last more than three months!

[gibbonfunky66]

It was an OEM Yamaha one.... I don't think it was the cable's fault, seems to be the speedo itself, so will try to get some lubrication in there. Just ordered another cable on eBay (new - OEM). Only 9 quid with free delivery at the moment.
Cheers
Simon