Why you should flush clutch fluid once a year.

[Catmandu2]

Maybe someone can verify this but if that is the case I would think most of the primary fluid flush goes into the slave cylinder and then up through the bleeder screw??

Don't think so. Any air in the csc rises up through the banjo,,, and sits in the line ass'y above the bleeder tube, or in the bleeder tubes stem. With any luck, it rises all the way to the cmc. But there are many hangups on the way. I used all the tricks to flush the air out, and it was not easy. Once the csc is full of fluid, fresh fluid (only a small amount) flows into and out of it during normal clutch operation. I eventually power flushed the upper hose ass'y with my vaccum bleeder, while placing a one-way check valve on the bleeder fitting and pumping the cmc to increase the flow velocity of fluid coming down. Once the lever firmed up a good bit,,, I closed everything up and bungee'd the lever down over night. After rapping on the lines (everywhere in the circuit that I could access) as best I could the next morning, too encourage any last compressed bubbles to migrate upwards, I removed the bungee and just operated the lever. It felt as good as it always did, and performs well now. My csc has fresh fluid in it now. But that same fluid will reside in there until some future csc removal. It has a rough life,,,, cheers,,, CAt'

 

[Cajun T-roy]

What is that — a Salvador Dali 1300?

2005 Honda ST1300

 

[LadyEJ]

2005 ST1300 51,300 miles. I just purchased this bike used. This past weekend , with the help of IGOFAR over the phone I replaced clutch slave cylinder. I did it without pulling the motor. It was not an easy job for me but I did it. That's what you do when you have more time than money. Lol. I will definitely be flushing the brakes and clutch yearly. I definitely have to give a big shout out to Igofar. Thank you very much sir.

Good Job! Thanks for all the helpful info on your experience. I recently had my master clutch cylinder replaced. The clutch fluid kept leaking out and locking up the clutch. Bleeding the clutch and re-adding fluid was just a temporary fix.

 

[SMSW]

2005 Honda ST1300

Great pictures. You might go to the blue band atop this page > Articles > ST1300 > Clutch Slave Cyl Replacement, and copy and paste your post w/ pictures in another post at the end of the article. That way, folks reading the article will see the damage that can occur.

I have not read that article - never had to do that work, so if someone has posted similar pics, reconsider what I'm suggesting. You could also simply add a post at the end of the article saying "I, too, had to replace my clutch slave cyl. - look at this thread w/ my pictures...." Then copy and paste the url for this thread and it will appear as a link to this thread in that post.

 

[gringo88]

I will see how easy it would be to crack the banjo on top of the CSC for a complete bleed. compare the colour of fluid. I'll definately take a look while I'm under there tonight.