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FS Snowy April 30th, 2017 01:19 PM

Fs570 clutch losing pressure
Hi all, my first post on here, I've just picked up a fs570 2011. First ride out today and the clutch seems to keep losing pressure can pump it back up by cycling the lever a good few times but then it loses pressure again. Can anyone help, hoping it's a simple fix, where should I start,

thanks in advance

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Rainerio April 30th, 2017 03:08 PM

Some slave cylinder can leak. My FE570 does. sounds like maybe yours is one of then. Bleed it with oil mineral and keep an eye on it. I have to check It every 6 months. Or you replace the slave cylinder.

FS Snowy April 30th, 2017 11:39 PM

Thanks rainerioI will check today and have a look today as I haven't touched anything yet I'll top it up any bleed it see if I get any improvement

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fe390vt May 1st, 2017 09:59 AM

You need to replace the o ring that seals slave piston. Happened to me. Think that engine heat caused it. This motor produces lots of heat. Intake boot also may start cracking due to heat.

Rainerio May 1st, 2017 01:45 PM

Fe390vt Can I get the part number from You for that O-ring

FS Snowy May 1st, 2017 02:18 PM

Thanks fe390vt I will order some and let you know how I get on

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fe390vt May 2nd, 2017 12:00 AM

Piston seal i should have said, as there is also an o ring that seats the slave cylinder to motor. Think it may be the same seal as brake piston as I believe i used a spare from brake. Dont have part no. Kind off a pain to get the new seal in if i remember correctly. You may want to buy a couple spares in case it rips.

FS Snowy May 5th, 2017 01:23 PM

I took off the master cylinder cap, the level was low in there, so I went and bought some mineral oil, topped it up and it has been fine ever since, I gave Midwest a call and explained to them what had happened and they said just closely monitor the level in the MC. im not sure whether to order the piston seal or a new slave

SRG May 5th, 2017 01:40 PM

+ 1 on the slave cyl. O rings. Not hard to replace. Sorry, don't have a PN, I bought 5 from someone who bought 100. If it starts leaking again (I think it will) and you can't find a replacement send me a message.

Rainerio May 5th, 2017 02:44 PM

How about size of O-ring. You know something like 60mm OD x 2mm thick it has to made by someone. Thanks and I have to fill it about every 6 months and it's going to take a crap some day and have to replace it.

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