clutch slipping. slave cylinder not retracting

Ok here is it 86 VFR700F 8800 miles. Clutch seems to be slipping.
I install a new clutch. Test drive and the clutch is still slipping.
Inspect the slave cylinder and the plunger is extending too far.
Crack the bleed valve, push the plunger in. Test drive solid clutch hook up
doing wheelies..:biggrin: but 30 miles later the clutch is slipping again
limp home look at the slave cylinder and the plunger is out too far again.

What the heck.

thanks

 

I would also be interested in any info anyone can provide. I have an '86 500 that the cluth hydraulics don't seem to do anything at all. I have bled the line, but the clutch is just a dead lever.

 

In the master cylinder there are two holes 1 feed and 1 return, if the return hole gets partially blocked it can cause the symptoms you describe as the cylinder stays partially pressurised

 

thanks brother
I will take a look at it today. Hopefully I will be riding tonight:evil:

Ok I took both the Master and Slave apart. wow loads of orange gue!
the master has 2 holes in the resevoir one was completely plugged up.
cleaned the passage (drill bit).

Flushed the works with fresh DOT4. Seems to be all good now test drive SOON

 

Just an FYI, overfilling the reservoir can cause the same symptoms on both the brake and clutch systems.