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Thread: Clutch lever play keeps changing.

Created on: 04/07/11 01:31 PM

Replies: 15

Grn14


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Location: Montana

Joined: 02/25/09

Posts: 15511

RE: Clutch lever play keeps changing.
04/07/11 6:16 PM

Hey KAK...good to hear from ya!One question....do have...AFTERMARKET levers on there?

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Romans


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Location: Toronto,ON

Joined: 02/13/09

Posts: 5933

RE: Clutch lever play keeps changing.
04/08/11 8:03 AM

Love These, click

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Rook


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Joined: 03/28/09

Posts: 21238

RE: Clutch lever play keeps changing.
04/08/11 2:49 PM

KAK, are we living in parallell universes or what?

Just got done with sprocket changes and had to remove clutch slave cylinder. Somehow, this let air in or made fluid magically disappear--IDK what happened. I had almost no clutch pressure. A 2year old could have pulled the clutch lever , no problem. The lever wouldn't even go back all the way 100% open without me putting it there manually.

I bled the clutch slave and the master cylinder as recommended by a certain somebody (thanks, blue). Worked like a charm. Have a good tight clutch again. Damn, I don't need any heavier springs on this deathgrip clutch.


* Last updated by: Rook on 4/8/2011 @ 2:55 PM *



08 MIDNIGHT SAPPHIRE BLUE ZX-14 Now Deceased, will be resurected 2024 ZX-14R bran friggin NEW!

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Grn14


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Location: Montana

Joined: 02/25/09

Posts: 15511

RE: Clutch lever play keeps changing.
04/09/11 1:45 PM

Y/W Rook.Glad that worked for ya.I know how ya feel Kak.Had a very similar deal with mine...ended up being the aftermarket levers.One question here...any sign of fluid loss in the res?And down at the slave,in the bodywork there,any sign of fluid in there?...sometimes over time or tightening,these little spacers in here will crack.If they do,you "may" get some fluid loss.


* Last updated by: blue07 on 4/9/2011 @ 1:47 PM *

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Romans


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Location: Toronto,ON

Joined: 02/13/09

Posts: 5933

RE: Clutch lever play keeps changing.
04/09/11 5:26 PM

Romans, thanks for the reply.
Did you have the same problem I'm having?

Exactly.

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Romans


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Location: Toronto,ON

Joined: 02/13/09

Posts: 5933

RE: Clutch lever play keeps changing.
04/09/11 9:09 PM

assuming I've described it right

To a T.

but can you explain why the problem isn't constant if the springs have weakened or maybe even one has broke?

No I can't but mine did the same thing, just chalked it up to shit springs. My thinking at the time was they get weak when they got hot. "Spongy". poor quality spring steel maybe. I had the clutch pack out and looked at everything, all was mint. Reinstalled with new springs from Brocks and clutch was back to normal. Still works great today.

Easy to do. You don't even need to drain your oil. Keep her on side stand. 15 min and 30 bucks. I hope this helps. please post your findings. cheers

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Grn14


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Location: Montana

Joined: 02/25/09

Posts: 15511

RE: Clutch lever play keeps changing.
04/10/11 2:18 AM

Ya...it's kinda hard to pinpoint certain things.Romes fixed his with new springs.I fixed mine with reinstalling my stock levers.It sounds to me..whatever it could be,that somehow the fluid is perhaps heating up,causing a different pressure deal within the line.Maybe just some trapped air,expanding and contracting at certain lever pulls?IDK.I'd bleed the line really well,when she's all warmed up and just check for ANY air bubbles at the bleed nipples(in the bleed line).I'd start there,and eliminate the possibility of trapped air.Even TINY TINY bubbles were enough to make my clutch lever not act right whenever I did an fluid change.And it took several times of tapping the clutch master up top there,bleeding,and also rebleeding the slave a few times to get the air all the way gone.

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Romans


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Location: Toronto,ON

Joined: 02/13/09

Posts: 5933

RE: Clutch lever play keeps changing.
04/10/11 2:36 AM

Describing things can be difficult and someones sure you mean something else.

Your quote below tells all.

The slack/play fluctuates. One moment the lever feels fine and then the slack increases again.


I had the exact issue you described so it was easy for me to tell you what I did that fixed My problem.

I hope the 10-15% harder pull Brock's claims is just that

Well, to convince of me of that you would have to place the old and new on a gauge side by side. I'm thinking 3% to 5% but Brock is the man so it is possible. No biggy that's for sure. I love it. My thought was it should have always been this way. Before I had no feel. Great upgrade 4 peanuts.

Any tips or anything difficult about removing the cover and doing this job? I appreciate your time.

Maybe one of the guys could tell you what the shop manual has written. I don't own one so I can't look it up.

Gear Head version ?

1. Lean bike over on sloped driveway.

2. Remove clutch cover

3. Remove one spring at a time then switch old with new.

4. Re torque when all springs are in place.

5. Reinstall cover.

6. If does not work, call Romans Names, then kick shit in garage Rofl.

7. Repeat process place old springs back in. Down 30 bucks and 15 min of your time you will never get back.


How did I do ? Sound about wright ?


Kak, as you can see I too am not the best with words.

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Romans


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Location: Toronto,ON

Joined: 02/13/09

Posts: 5933

RE: Clutch lever play keeps changing.
04/10/11 2:47 AM

Kak, do not remove clutch pack unless you are sure of what your doing. Here is a couple of pics of the basket out.
In case your in there and want to take a look around.

Factory Pro Shift Kit Install.





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Romans


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Location: Toronto,ON

Joined: 02/13/09

Posts: 5933

RE: Clutch lever play keeps changing.
04/10/11 2:57 AM

I'd bleed the line really well,when she's all warmed up and just check for ANY air bubbles at the bleed nipples(in the bleed line).I'd start there,and eliminate the possibility of trapped


Always good advise.

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Grn14


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Location: Montana

Joined: 02/25/09

Posts: 15511

RE: Clutch lever play keeps changing.
04/13/11 12:59 AM

I've "heard" synthetic will crack rubber parts inside.I honestly don't know.Mixing....DOT 4 ONLY.I don't think brand matters.Just something recognized as "good".There should be an SAE number or something.Look on the res cover...it may give an SAE number.I'd go with that IF you can find it.I just use a good quality DOT4 with mine.Motorcycle Specific(I think it is?)Maybe not.DOT 4 for sure though.

The 14 has NO slipper clutch...your lever should begin to engage about an inch to 1/2 inch pulled in,and should "snap" back when released.There should be NO type of "changing" in the way the lever feels.Mushy,spongy...air in the line.

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privateer


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Location: [random forest]

Joined: 02/16/09

Posts: 3605

RE: Clutch lever play keeps changing.
04/13/11 4:15 AM

Yes, and bleeding the clutch could be a two stage process just like the brakes, if you use a vacuum bleeder from the bottom (using the reservoir as... a reservoir for the bleed.

Once no air bubbles show up in your vacuum line on the slave (bottom) nipple, close it and move to the master (top, at lever). Just affix a clear tube to the master's nipple and hold it over the open reservoir and start squeezing the clutch (or whatever) lever until no more air comes out the nipple. Close the nipple and make sure the DOT4 in the reservoir is the right level, and close it up.

Done.

If you don't do the second step, or do it only half-arse, or vacuum from the top and think that gets it all, the lever will have slack. I call it mushyness. Heh.



Living the Gypsy Life

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Romans


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Location: Toronto,ON

Joined: 02/13/09

Posts: 5933

RE: Clutch lever play keeps changing.
04/13/11 5:11 AM

Romans, thanks for the help. Hope I didn't push your patience too far.
I talked to an old friend today who has an '05 ZX10. I described what my clutch is doing and he said this is a characteristic of slipper clutches and it's normal...to a point of course. I hate to admit that I'm a poor listener and when he described how this clutch operates he lost me. But he said deceleration will create some extra lever slack but it's only temporary. That's when I noticed it most...after

No can do. My patience is strictly based on the guy asking. I try to keep my answers brief as I can so as not to confuse.

Blue has got you covered below. Your on a zx-14 web site. Guys here will Help you. They ride the same bike. No slipper.

The 14 has NO slipper clutch...your lever should begin to engage about an inch to 1/2 inch pulled in,and should "snap" back when released.There should be NO type of "changing" in the way the lever feels.Mushy,spongy...air in the line.

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Romans


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Location: Toronto,ON

Joined: 02/13/09

Posts: 5933

RE: Clutch lever play keeps changing.
04/16/11 9:31 AM

Romans, what does that shift kit do for the bike?


These 1-2 hour installation kits change the feel of your bike's transmission.
Quicker, easier, shifting - A "twitch" on the lever and the throttle and you are in the next gear. Perfect for track use and road riding for effortless downshifts into a corner.

Makes shifting almost effortless, whether and easy shift in town or a rapid series of wild downshifts going into a tight corner on a racetrack.
The "secret" of many AMA, CCS and WERA Teams, including #1 USA National Endurance Vesrah Racing.

Virtually eliminates missed shifts, upshifting or downshifting.

The speed at which the gears actually engage is dramatically improved and the transmission gears and shift forks are protected from damage caused by missed shifts.

Includes:
Factory Pro designed, refined and manufactured SHIFT STAR, Factory Pro Microbearing Detent Arm and heavy duty detent spring and the appropriate gaskets. Contents may vary depending on the kit, call 800 869 0497 for details.

Installation:
Installation requires clutch assembly removal (perfect to install when replacing clutch plates (see page XXX in catalog) or chain removal and maybe water pump on some bikes that have the shift mechanism below the countershaft sprocket.

The closest to a "paddle shifter" for a motorcycle that you'll ever find!!

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KAK



Location:

rockandahardplace

Joined: 02/16/09

Posts: 761

RE: Clutch lever play keeps changing.
04/17/11 10:13 AM

Thanks Romans. You sound just like a salesman.

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Romans


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Location: Toronto,ON

Joined: 02/13/09

Posts: 5933

RE: Clutch lever play keeps changing.
04/17/11 10:58 AM

ROFL,,,, not my words. Mine words would have been few. Love it or hate it. Thumbs up in this case.

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