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VF500c Clutch issues

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Old 05-14-2010, 07:54 PM
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VF500c Clutch issues

Hi all,

I know this forum is for the SHs but I have found the people that frequent this site to be pretty knowledgable mechanics so I figured Id post here.

I just got a 85 VF500f with 15K miles. Looks great, would idle but clunks out if given gas, and I was told the clutch was problematic and would lose pressure within minutes if bleed.

So I figured great I'll rebuild the carbs and slave or master cylinder for the clutch and all will be gravy.

Well....The pressure on the clutch feels fine and I could hear something at the slave cylinder. So I pulled the slave cylinder and it looks fine. When I attempted to push (what I think is) the gearshift fork shaft behind the slave cylinder, it won't budge.

What could cause this? What are my options?
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Old 05-14-2010, 08:28 PM
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First off, it sounds like you have two separate issues. Fix them separately. First get the bike running well enough to take throttle. I'm guessing you'll need to clean the carbs out very well. Then work on the clutch thing. If you pushed on the rod that the cylinder runs by hand, you probably won't be able to budge it, as it takes a fair amount of pressure. If the fluid has some years on it, I would start by dumping the old fluid and adding new, try to bleed it and let it sit for a while. Then tap the line from bottom to top lightly with a small wrench and re-bleed.
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Old 05-14-2010, 08:33 PM
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The pushrod to disengage the will be extremely hard to push in. So I don't see that being a problem. Unless I am missing something. Pics of the problem maybe?

I would start by getting it ride able and get start by cleaning carbs and also getting the clutch system to hold pressure then ride and see if the clutch really isn't working or whether it was the just the hydraulic system.

I really like the vf500 I wish more where around.

(haha, a few minutes late, but I will leave my post up)
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Old 05-14-2010, 09:49 PM
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Memories...

Well someone just had to bring up the VF500f didn't they?
This is not a thread hijack...! :P
I wish I could help, but that damned thing barely ran a few miles before it died on me after working as hard as I did on it the summer of '01.
The memories...


...of hell with that bitch.


*I hope your work comes out for you - safe ridin'.



-Spaz'
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Old 05-15-2010, 06:26 AM
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Ok thanks. I already am almost done with the carbs, I just pulled the slave cylider while I had some jets soaking. I'll get it running and report what I find.

Spaz- what happned to it? Something I can prevent?
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Old 05-16-2010, 11:23 AM
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Well I got the carbs back together and the bike running good. I've bleed the clutch and it has good pressure. However, when I push the clutch nothing happens. It stays in gear. Any ideas?
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Old 05-16-2010, 11:50 AM
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Clutch plates stuck together?
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Old 05-16-2010, 11:54 AM
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how can I tell. I've never messed with a clutch other than the hydrolic end. I wouldnt even know where to start and dont have a manual.
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Old 05-16-2010, 12:26 PM
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The easy answear is to tear the bottom of it apart... Yeah, yeah it's not easy... But if the hydraulic holds pressure and isn't the culptrit all the other fixes involves a teardown of the clutch... So go find a service manual and get too it...
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Old 05-16-2010, 02:14 PM
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Ok got it fixed. The clutch disks were sticking together. I took the crank case cover off and pulled them apart from eachother and its works perfectly. Thanks for your help guys.
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