clutch slipping. slave cylinder not retracting

puckstr · 03-22-2007, 04:47 PM

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..

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

fiddlercrabus · 03-22-2007, 05:20 PM

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.

reg71 · 03-22-2007, 10:21 PM

Quote:

Originally Posted by fiddlercrabus

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.

On my 500, I had to rebuild the slave cyclinder. Someone gave me a link to a slave cylinder rebuild kit on ebay for a good price. It was an easy fix and then bled the clutch and voila, I had a working clutch...I had never done it before, but it was not bad at all.

vifferj · 03-23-2007, 06:07 AM

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

puckstr · 03-23-2007, 11:25 AM

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

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

samiam · 03-27-2007, 07:42 AM

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

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03-22-2007, 04:47 PM	#1 (permalink)
puckstr Junior Member Join Date: Mar 2007 Last Online: 08-02-2007 03:16 PM Location: Denver CO My Ride: 86 VFR700F View my Photo Gallery Posts: 9 Thanks: 0 Thanked 0 Times in 0 Posts	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.. 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

03-22-2007, 05:20 PM	#2 (permalink)
fiddlercrabus Junior Member Join Date: Mar 2007 Last Online: 03-25-2007 11:58 AM Location: Greeley, Colorado My Ride: 1984 VF500F Streetfighter 1986 VF500F Stocker Posts: 24 Thanks: 0 Thanked 0 Times in 0 Posts	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. __________________ "Cundelini wants his hand back."

03-23-2007, 11:25 AM	#5 (permalink)
puckstr Junior Member Join Date: Mar 2007 Last Online: 08-02-2007 03:16 PM Location: Denver CO My Ride: 86 VFR700F View my Photo Gallery Posts: 9 Thanks: 0 Thanked 0 Times in 0 Posts	thanks brother I will take a look at it today. Hopefully I will be riding tonight 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 __________________ See you on the road SKAGG!!! Last edited by puckstr; 03-23-2007 at 02:45 PM.

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03-23-2007, 06:07 AM	#4 (permalink)
vifferj Member Join Date: Feb 2006 Last Online: 03-07-2008 03:05 AM Posts: 69 Thanks: 0 Thanked 0 Times in 0 Posts	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

03-27-2007, 07:42 AM	#6 (permalink)
samiam Junior Member Join Date: Mar 2007 Last Online: 04-13-2008 01:05 PM Location: Central Massachusetts My Ride: 1985 VF700F Posts: 21 Thanks: 0 Thanked 0 Times in 0 Posts	Just an FYI, overfilling the reservoir can cause the same symptoms on both the brake and clutch systems.

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