Clutch squeel

[English biker]

Hi to all.

Coming back from Matlock yesterday my CT`s  (manual clutch & on a 2012 plate) clutch started making strange rattling & scraping noises.
when I began my journey, I did notice the clutch lever to be a bit stiff to pull in & felt grindy (if that makes sense) through the lever on touch.

This morning, I`ve just been out to start the bike (hoping the noises would have gone away, as you do....) and, straight away, it (the clutch) started to squeal, I pull the lever in, and more strange noises are happening.

I have noticed that all strange sounds are coming from the left (nearside) of the bike, seems more at the clutch Slave cylinder area.
Any helpful suggestions as to what the issue could be, would be appreciated thanks.

Typically we are booked to go away on it in a couple of weeks !

[Beer Belly]

Oh dear, doesn't sound good, pretty unusual failure, did it start to slip? The master and slave cylinder pistons are pretty easy to strip and check but it sounds more like the plates or basket breaking up. Think I'd be stripping it down to have a good look, running it could cause more damage if its failed. What mileage has it got?

[English biker]

No, the clutch isn’t slipping,
As of the mileage, 35,000 miles on the clock

[Beer Belly]

Bit odd for it go bad at that sort of mileage, will you have a go yourself or take it to a mechanic? It needs a special tool to remove the clutch pressure plate, about thirty quid on ebay. If you need pages scanning from a workshop manual let me know. I take it you use the right sort of oil spec as opposed to a car oil? Although saying that car oil can cause slippage rather than breakage.

[English biker]

No, I shan’t have a go at it myself,
Although  I do have the workshop manuals thanks for the offer.
I have always used the correct oils in my bikes so the problem I have is not oil related.

[Beer Belly]

Hope you get it sorted. Let us know what they find. 

[thetrecker]

Hi,
most people and workshops overlook the change of dot4 brake fluid to the clutch system. the fluid in the slave cylinder that's attached to the engine endures big heat and discolours/ breaks down quickly. I change it every 2 years and always notice a smoother feel to the clutch lever.
I had a slave cylinder go bad on a previous Aprilia I had and the symptoms were a little similar to what you describe. I fitted a Oberon performance aftermarket cylinder to it and it was super light afterwards. Great mod.
Maybe you could start with this and see if it helps.

Tom

[English biker]

Morning thetrekker.

Thanks for the advice.

I have booked the bike into a local bike shop to see what they can find.
They can`t look at it until 29th March,
Just typical we are booked to go to Wales on it at the end of the month, looks like it`ll be a break away in the car with the dog ! ( I mean the 4 legged thing not the wife Ha !)

I`ll let you guys know of the outcome

thanks