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General Category => Yamaha FJ1100 / FJ1200 Running Problems => Topic started by: DocFJ1200 on May 13, 2013, 07:50:40 PM

Title: Fj1200 leaking clutch slave cylinder
Post by: DocFJ1200 on May 13, 2013, 07:50:40 PM
Lost use of clutch and it looks like fluid has leaked past clutch slave cylinder. I'm assuming this contaminates oil. Will be replacing cylinder instead of rebuilding. Is it enough to completely drain the oil from the crankcase or should I do anything else to clean out this mix of oil and brake fluid?
Title: Re: Fj1200 leaking clutch slave cylinder
Post by: FJmonkey on May 13, 2013, 08:02:07 PM
No, you need to sell the bike off to another, total loss. It is fucked.... Many of us will take it off your hands with out a disposal fee. Just give us your zip code and we will be in touch to process the transaction....

Welcome FNG, look up www.rpmracingca.com (http://www.rpmracingca.com) for parts to rebuild your clutch slave. Since you are new I would recommend you use the search function on this site, must be way over 100 years of combined experience that have posted nearly all solutions to what you need. Look for the introduction section and be neighborly, we like to know about our new members... This is virtually a digital campfire and we all enjoy the friendship and the respect cultured here. Kookaloo my friend....
Title: Re: Fj1200 leaking clutch slave cylinder
Post by: DocFJ1200 on May 13, 2013, 08:43:04 PM
Quote from: FJmonkey on May 13, 2013, 08:02:07 PM
No, you need to sell the bike off to another, total loss. It is fucked.... Many of us will take it off your hands with out a disposal fee. Just give us your zip code and we will be in touch to process the transaction....

Welcome FNG, look up www.rpmracingca.com (http://www.rpmracingca.com) for parts to rebuild your clutch slave. Since you are new I would recommend you use the search function on this site, must be way over 100 years of combined experience that have posted nearly all solutions to what you need. Look for the introduction section and be neighborly, we like to know about our new members... This is virtually a digital campfire and we all enjoy the friendship and the respect cultured here. Kookaloo my friend....

Why would you say the bike is a loss and then suggest I go to a site to rebuild the clutch slave ?
Title: Re: Fj1200 leaking clutch slave cylinder
Post by: Pat Conlon on May 13, 2013, 08:58:15 PM
Because...our Monkey is a smart critter.

He wants you to fix the clutch slave before he picks up your bike.
Title: Re: Fj1200 leaking clutch slave cylinder
Post by: Arnie on May 13, 2013, 09:05:17 PM
Monkey frequently tries to be funny.  Sometimes he succeeds.  This is not one of those times.  He's actually a good guy, just needs to work on his delivery :-)

The clutch fluid will NOT drain into the engine oil.  So, that is not a reason to change the oil.
However, it will damage the paint on the oil filter housing and damage the lower cowling.

You can usually rebuild a clutch slave at least once with the rebuild kit which includes seals etc.  easy job.
Or, rpmracing.ca has new slaves at a very reasonable price IMO.  Bleeding the clutch line can be difficult.  One way to make it easier is to fill from the slave bleed valve (wrap the threads with teflon tape) with a large syringe.  After you think you're done, tie'ing the clutch lever to the grip overnight will frequently get the last bit of air out of the system.

Welcome,
Arnie
Title: Re: Fj1200 leaking clutch slave cylinder
Post by: DocFJ1200 on May 13, 2013, 09:25:26 PM
Quote from: Arnie on May 13, 2013, 09:05:17 PM
Monkey frequently tries to be funny.  Sometimes he succeeds.  This is not one of those times.  He's actually a good guy, just needs to work on his delivery :-)

The clutch fluid will NOT drain into the engine oil.  So, that is not a reason to change the oil.
However, it will damage the paint on the oil filter housing and damage the lower cowling.

You can usually rebuild a clutch slave at least once with the rebuild kit which includes seals etc.  easy job.
Or, rpmracing.ca has new slaves at a very reasonable price IMO.  Bleeding the clutch line can be difficult.  One way to make it easier is to fill from the slave bleed valve (wrap the threads with teflon tape) with a large syringe.  After you think you're done, tie'ing the clutch lever to the grip overnight will frequently get the last bit of air out of the system.

Welcome,
Arnie

Title: Re: Fj1200 leaking clutch slave cylinder
Post by: DocFJ1200 on May 13, 2013, 09:31:28 PM
Quote from: DocFJ1200 on May 13, 2013, 09:25:26 PM
Quote from: Arnie on May 13, 2013, 09:05:17 PM
Monkey frequently tries to be funny.  Sometimes he succeeds.  This is not one of those times.  He's actually a good guy, just needs to work on his delivery :-)

The clutch fluid will NOT drain into the engine oil.  So, that is not a reason to change the oil.
However, it will damage the paint on the oil filter housing and damage the lower cowling.

You can usually rebuild a clutch slave at least once with the rebuild kit which includes seals etc.  easy job.
Or, rpmracing.ca has new slaves at a very reasonable price IMO.  Bleeding the clutch line can be difficult.  One way to make it easier is to fill from the slave bleed valve (wrap the threads with teflon tape) with a large syringe.  After you think you're done, tie'ing the clutch lever to the grip overnight will frequently get the last bit of air out of the system.

Welcome,
Arnie

Thank you for the insight to Monkey. I am new here and was looking for advice. I added fluid to the clutch master cylinder and pulled the handle a few times trying to find the source of the leak by building up pressure. Eventually I noticed the glass area that shows the oil level seemed higher and I assumed the brake fluid had mixed with the oil to cause that. Dumb question time , where did the fluid go ?
Title: Re: Fj1200 leaking clutch slave cylinder
Post by: The General on May 13, 2013, 09:33:18 PM
 :hi: Welcome from Downunder Doc. We`ve got a seriously contagious disease here that mainly affects the wallet area of our body. Pulling on the leg, in fact any leg, does bring some relief fortunately.  :drinks:

What part of the world are ya from mate? Got any bike pics? What year is the FJ? Great lot of people here. Great site at mates rates too.  :good2:
Title: Re: Fj1200 leaking clutch slave cylinder
Post by: The General on May 13, 2013, 09:51:50 PM
Quote from: DocFJ1200 on May 13, 2013, 09:31:28 PM
Quote from: DocFJ1200 on May 13, 2013, 09:25:26 PM
Quote from: Arnie on May 13, 2013, 09:05:17 PM
I added fluid to the clutch master cylinder and pulled the handle a few times trying to find the source of the leak by building up pressure. Eventually I noticed the glass area that shows the oil level seemed higher and I assumed the brake fluid had mixed with the oil to cause that. Dumb question time , where did the fluid go ?
No such thing as a dumb question here. Clutch fluid is leaking out on the inside of slave near your primary drive. You`ve usually got enough gunk there or enough padding inside the bottom plastics to stop the obvious drips to the ground. The oil in the window will rise after settling, particularly if you put it on the sidestand before levelling Bike with say, the centre stand.  :good:
Title: Re: Fj1200 leaking clutch slave cylinder
Post by: FJmonkey on May 14, 2013, 07:13:59 AM
My attempts at humor are hit and miss, sorry if I put you off. The clutch slave is a weak point on our FJs, its only a matter of time before you need to rebuild it. You can take the clutch slave off and inspect for fluid weeping out of the seals. Just don't pull in the clutch lever or turn the engine on with the slave off. Turning the engine on will cause the clutch push rod to shoot out along with the engine oil that pushed it out. We call this spearing the cat, soon to be a West Coast Rally competition. Sorry for the rough start, it only gets better from here.  :hi:
Title: Re: Fj1200 leaking clutch slave cylinder
Post by: wyraider on April 21, 2014, 03:33:19 PM
Well I thought it was funny, isn't everything?  :rofl: Thanks for the tips I'm doing mine soon.
Title: Re: Fj1200 leaking clutch slave cylinder
Post by: breeze48552000 on May 13, 2014, 07:13:47 AM
Quote from: DocFJ1200 on May 13, 2013, 07:50:40 PM
Lost use of clutch and it looks like fluid has leaked past clutch slave cylinder. I'm assuming this contaminates oil. Will be replacing cylinder instead of rebuilding. Is it enough to completely drain the oil from the crankcase or should I do anything else to clean out this mix of oil and brake fluid?
as a auto tech for 30+ years I've often added a bottle of brake fluid to oil to clean engine and mechanical parts so if not terribly over full as to blow seals I wouldn't worry about a little brake fluid in oil , its also a friction fighter
Title: Re: Fj1200 leaking clutch slave cylinder
Post by: rktmanfj on May 13, 2014, 12:46:53 PM


     (popcorn)


Title: Re: Fj1200 leaking clutch slave cylinder
Post by: Capn Ron on May 13, 2014, 02:49:52 PM
Quote from: breeze48552000 on May 13, 2014, 07:13:47 AM
...as to blow seals...

And then the penguin says, "Naw...it's just ice cream!"   :rofl: :rofl: :rofl:

Cap'n Ron. . .
Title: Re: Fj1200 leaking clutch slave cylinder
Post by: rktmanfj on May 13, 2014, 03:04:17 PM
Quote from: Capn Ron on May 13, 2014, 02:49:52 PM
Quote from: breeze48552000 on May 13, 2014, 07:13:47 AM
...as to blow seals...

And then the penguin says, "Naw...it's just ice cream!"   :rofl: :rofl: :rofl:

Cap'n Ron. . .

There it is...

And to think they called me shameless and opportunistic!    :scratch_one-s_head: