The clutch will probably slip. At high speeds there is vibration and the motorcycle does not move!

 

The size of the package is 25.8 mm, I checked the feredo in place and did not lag behind the disk. Spring size 37 mm.

Edited October 15, 20241 yr by nick1

photo of clutch discs

Found this:  The steel ring in the photo with printing on it appears to be a spacer to make the clutch pack thicker and the fibre plates are not black they are the colour of organic friction plates.  These look a lot like your clutch, if your clutch pack is undersized it could be you are missing that spacer.  Oil should never be as black as those plates or the oil has been burning in there for a while.  Personally for the cost involved I would replace the clutch pack with stock parts and be done with it.

add: There are only 3 friction plates in this set because it is for a newer model GasGas, so no I am not suggesting this is the right part for your bike, I am suggesting a previous owner exchanged the originals with something that apparently does not work.

Edited September 30, 20241 yr by lemur

9 hours ago, lemur said:

Found this:  The steel ring in the photo with printing on it appears to be a spacer to make the clutch pack thicker and the fibre plates are not black they are the colour of organic friction plates.  These look a lot like your clutch, if your clutch pack is undersized it could be you are missing that spacer.  Oil should never be as black as those plates or the oil has been burning in there for a while.  Personally for the cost involved I would replace the clutch pack with stock parts and be done with it.

add: There are only 3 friction plates in this set because it is for a newer model GasGas, so no I am not suggesting this is the right part for your bike, I am suggesting a previous owner exchanged the originals with something that apparently does not work.

 @ lemur Unfortunately as you say that is the PRO clutch pack and the steel ring is the belville spring so it is of no use to nick1 .  It would probably help him if he bought a new set of SURFLEX plates to have the correct pack thickness to start with for the old VILLA based bottom end and then go through the slave and master cylinder push rod set up to get it working  plus try using a clutch /gear fluid  that is less high tech , there cannot be much wrong with it. 

Edited September 30, 20241 yr by Tr1AL

@ nick1 You could try putting some washers/shims on the clutch spring bolts to preload the springs and make it push the clutch pressure plate more stronger on the clutch discs but really you need a new set of clutch discs to make the clutch pack thicker/wider.

15 hours ago, Tr1AL said:

 @ lemur Unfortunately as you say that is the PRO clutch pack and the steel ring is the belville spring so it is of no use to nick1 .  It would probably help him if he bought a new set of SURFLEX plates to have the correct pack thickness to start with for the old VILLA based bottom end and then go through the slave and master cylinder push rod set up to get it working  plus try using a clutch /gear fluid  that is less high tech , there cannot be much wrong with it. 

Surflex plates will look like normal organic clutch plates, I really wonder if he has a mismatch of parts now, I can't imagine the original plates have cross hatch spaces like that.  Are we even looking at carbon fibre discs and is that why they are so black?  Cork or paper discs should clean up to be cork colour like in the pictures of new ones and nothing in a 2-stroke transmission should make the oil and pads stain black unless it is from burning. 

6 hours ago, Tr1AL said:

@ nick1 You could try putting some washers/shims on the clutch spring bolts to preload the springs and make it push the clutch pressure plate more stronger on the clutch discs but really you need a new set of clutch discs to make the clutch pack thicker/wider.

 

I’ve already done this, but not for the bolt, but instead the part of the clutch itself where the spring is in the aluminum part, I ground it by 2.5 mm, but it didn’t give anything. I’ll buy oil and I’ll exhaust it. Do you know what the length of the spring should be?

 

Found this photo of Surflex clutch plates to fit your bike and they look nothing like what you have. My guess is that someone put in a pack for another bike that was “close enough” at least for a while.

Edited October 1, 20241 yr by RonH
Typo

5 hours ago, lineaway said:

The worse thing about forums is any fool that has no clue runs his disinformation and confuses the poor guy needing help. I could not stand it any more and checked a old gasser motor that was sitting on my floor. Those are the stock plates. I still think its not correctly installed or those plates (friction are bad). Buy a whole new clutch and move on.

Where I live you can order with an expected delivery time of 4 months! The disks were installed correctly, I couldn't confuse anything.

9 hours ago, lineaway said:

The worse thing about forums is any fool that has no clue runs his disinformation and confuses the poor guy needing help. I could not stand it any more and checked a old gasser motor that was sitting on my floor. Those are the stock plates. I still think its not correctly installed or those plates (friction are bad). Buy a whole new clutch and move on.

 All the fools gave the same recommendation, replace the clutch pack with new stock parts and be done with it 👍

Thanks everyone for your help! I bought 5w30 mineral oil and machined the rings so that the springs would press the clutch harder, but it didn’t help. The problem is probably in the carburetor!