Technical Discussion Topics related to Technical Issues

Soft clutch

Old 06-23-2011, 09:53 PM
  #1  
Member
Squid
Thread Starter
 
Join Date: May 2011
Location: Central Wisconsin
Posts: 74
ruajohnson is on a distinguished road
Soft clutch

I have rebuilt the master cylinder and replaced the hose. The last thing I am waiting on are the parts for the slave cylinder rebuild kit. Could the slave by why I am getting next to no resistance from my lever? I have bled the system to perfection and still no resistance. Note that the bike is 13 years old with 13k miles on it. Before I rebuilt and replaced things the clutch would slip when the parts would get hot then cold again.

Last edited by ruajohnson; 06-23-2011 at 09:58 PM.
ruajohnson is offline  
Old 06-23-2011, 09:59 PM
  #2  
Senior Member
MotoGP
 
Join Date: May 2008
Location: San Clemente, CA
Posts: 3,447
VTRsurfer is on a distinguished road
Pull off the front sprocket cover and check for a leak. Since you've eliminated the other 2 parts of the system, the slave seal is probably leaking.
VTRsurfer is offline  
Old 06-23-2011, 10:08 PM
  #3  
Member
Squid
Thread Starter
 
Join Date: May 2011
Location: Central Wisconsin
Posts: 74
ruajohnson is on a distinguished road
i dont want to rip it open until i have all of the parts on hand because im weird like that... in addition to my other post the master cylinder's parts were glazed and shrunk up.
ruajohnson is offline  
Old 06-23-2011, 10:19 PM
  #4  
Senior Member
MotoGP
 
Join Date: May 2008
Location: San Clemente, CA
Posts: 3,447
VTRsurfer is on a distinguished road
It could be that the PO either never changed the fluid or put something other than brake fluid in the master.

The slave is all that's left, if you bled it properly.
VTRsurfer is offline  
Old 06-23-2011, 10:33 PM
  #5  
Member
Squid
Thread Starter
 
Join Date: May 2011
Location: Central Wisconsin
Posts: 74
ruajohnson is on a distinguished road
When I first flushed the system it looked like chocolate milk but the fluid in the reservoir was clear. so maybe there was a small leak and thats why the fluid up top was good? idk... I'll find out once it's ripped apart. The parts will be here in two weeks or so. Apparently a couple of the parts were on back-order.
ruajohnson is offline  
Old 06-24-2011, 12:29 AM
  #6  
Senior Member
SuperBike
 
Wicky's Avatar
 
Join Date: Sep 2008
Location: Essex, UK
Posts: 1,638
Wicky is on a distinguished road
Been there done that - Try a new seal on the slave as well - but beware if there is any scoring/damage to the bore you'll need to replace the whole unit.
Wicky is offline  
Old 06-26-2011, 05:07 PM
  #7  
Member
Squid
Thread Starter
 
Join Date: May 2011
Location: Central Wisconsin
Posts: 74
ruajohnson is on a distinguished road
ok next question... how much fluid do you think i should flush though my clutch hose before i know i am good? i mean I am currently at no air bubbles but still no pressure. any suggestions? when i pulled the slave apart the piston was totally STUCK inside the slave. What is the proper operation of the pin inside the slave cylinder?
thanks
-rob

Last edited by ruajohnson; 06-26-2011 at 05:18 PM.
ruajohnson is offline  
Old 06-26-2011, 05:25 PM
  #8  
Jack of all Master of non
Superstock
 
3amta3's Avatar
 
Join Date: May 2011
Location: Jacksonville,fl
Posts: 297
3amta3 is on a distinguished road
if all you is right then you need to pull apart the slave and do a deep clean on it. if it is stuck your pressure will never build up because the bleed by will always be there. i have seen them pump clear with no air and put together then once flushed around turn black again due to the carbon build up in the master and slave cylinder. so unless you pull it apart and clean you ge that alot, besides with the problem you are having i would take apart and clean then do a good flush.
and to answer to how much should you flush.
flush enough to get the air out, any more is a waist.
3amta3 is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
thefauxnarchist
Modifications - Performance
5
04-27-2011 07:02 AM
divingindaytona
General Discussion
7
05-04-2010 11:04 AM
Quickling
Rider's Gear
8
07-31-2009 05:42 PM
thehandyman
Modifications - Cosmetic
5
04-24-2007 06:36 PM
Lefin102
General Discussion
15
04-23-2007 04:02 PM


Thread Tools
Search this Thread
Quick Reply: Soft clutch


Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.

All times are GMT -7. The time now is 09:13 PM.


© 2019 MH Sub I, LLC dba Internet Brands