Squeaky clutch at high temps and strange drag ?

[poelinca]

At very high temps, the clutch starts to squeak witch doesn't bother me too much. The problem is it also sticks too fast when i try to slip it, witch results in a very jerky feel witch doesn't feel normal at all. This happens only when the bike is very hot after (or in) a difficult section like a very muddy and slippery situation witch may take me 4-5 tries to overtake.

Question: Should i take the plates off to inspect/change them or is this normal ?

 

[Anders]

Sounds like warped steel disks to me.

 

[poelinca]

Sounds like warped steel disks to me.

They are on sale at 24 euros + 64 for the disks original, or should I go with aftermarket like Aoki or Barnett ?

 

[Anders]

In my experience the OEM disks are ok.
But I would take them out and check them before doing anything else


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[dANbOT]

Is this a new thing?
My 14's clutch was victim to the same issues until I drilled more holes in the inner clutch hub, now it takes all the abuse I can give it!

 

[poelinca]

Is this a new thing?
My 14's clutch was victim to the same issues until I drilled more holes in the inner clutch hub, now it takes all the abuse I can give it!

"New thing" since i've started to put the bike thru more serious stuff without having the pro skill to do it. I'll open it up next week, inspect the plates and drill more holes.

Thanks.

 

[Anders]

Squeaks are quite common. Its the drag I'm referring to when I suggest warped disks.

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[poelinca]

Squeaks are quite common. Its the drag I'm referring to when I suggest warped disks.

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Yes, that's why i'm asking. I do not mind the sound but the sudden drag when slipping the clutch when the bike is very hot.

 

[adriano.ro]

Is this a new thing?
My 14's clutch was victim to the same issues until I drilled more holes in the inner clutch hub, now it takes all the abuse I can give it!

How many holes and witch size?

 

[stabak]

might worth checking also the radiator fluid and transmission oil after that use (boiling)

 

[poelinca]

might worth checking also the radiator fluid and transmission oil after that use (boiling)

I did change the oil and coolant. Took the bike on a trail to test it out, the clutch didn't squeak anymore and drag was perfect even after a short boil.

So I presume it was the oil (it only had 3 rides on it tough).

p.s. I bent the right radiator and it's leaking now on high revs, need to sort it out this week

 

[adriano.ro]

And witch tipe of oil do you use now?

 

[poelinca]

And witch tipe of oil do you use now?

Motorex gear oil 10w30 synthetic performance, I don't usually buy this brand. I have also tryed Yacco semi-synthetic 2t 10w30 and Motul transoil 10w30 (both cause squeaks on high temp).

p.s. I did have great results with the old Motul transoil semi-synthetic, the one with the red and white sticker on it, but now all you can find is the one with the blue sticker witch is mineral.

 

[adriano.ro]

No ATF try?

 

[adv rider]

I've used a mix of 10w40 and ATF with good results, for the same squealing clutch issue.


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[adriano.ro]

10w40 for cars or for bikes?