TOPIC:

Show us the plates!

as far as wear goes, it looks OK.
check for cracks

KZ250LTD wrote:

wireman wrote:

77KZ650 wrote:

Im not a mod so I can't fix his links, but they work hereB)
link 1
link 2
Scott

show off!

<br><br>Post edited by: wireman, at: 2006/10/23 06:00

I like how that picture is called "TGanek driving", lol.
Tim

KB02 wrote:

a few wear marks from where the old disks sat, but thats nothing that would bother me. Not that my word is golden or anything even close, but I don't really see anything wrong with it.

Thanks... the manuals are very ambiguous on what should be allowed and what should prompt action. I've had some clutch slippage and assumed the friction plates were shot but they mic'd out in spec, so I was just verifying the basket is ok.

I really posted that original link very late and was roasted when I did it. Sorry it was a problem for some. Thanks for the input.

Mike

Biquetoast wrote:

Mike - it looks normal to me, but you must be asking for a reason. Do *you* see something wrong with it?

Well, I'm getting some clutch slippage. The friction plates were ok when I mic'd them and I know the adjustment was fine. All I could think of was the basket, though to be complete, maybe the oil hung around too long. I was losing about 2ml/mile or better until I did my head gasket so I was just always adding and didn't actually change it for 6000 miles. Mobile One 20/50. Someone in the clutch spring thread suggested it could be weakened springs. 4 out of every 5 minutes this thing is ridden it's being used in drills, so maybe being in the friction zone so much is eating the springs? Really... with what I do for friction zone stuff, I can't believe I'm not thru the friction plates yet! Thanks.

Mike

kzwolfsr wrote:

As long as you just see the wear marks and not feel them you should be ok

I'd have to say you certainly can feel those.

Mike

racer54 wrote:

I can see the marks on the "ears" of the clutch basket. Are they what you are wondering about? They aren't that bad but if it was mine, I'd try to file down any edges you might feel. Wouldn't get over zealous about it though-just run your finger over them and take off the high spots you can feel. Take off the sharp edges basically.

I'll check to see if such rough spots are there. And make sure I avoid using my die grinder:) Thank you.

Mike

vegasjetskier wrote:

Show us the plates!

They look new

Clutch slippage can usually be attributed to one (or more) of the following:

1) Old/dirty oil, or oil with sheer inhibitors in it.
2) Glazed, warped or unevely worn friction plate(s).
3) Burnt or warped pressure plate(s).
4) Weak or broken clutch spring(s).
5) Stretched, kinked, binding or improperly adjusted clutch cable.

So even if your friction plates mic'd out within range, if they're glazed/warped/worn unevenly it can cause the clutch to slip.

Warped/unevenly worn friction plate:
Lightly coat the plate surface with oil and place the plate (but don't press down on it) on a piece of glass to check for any gap(s) between it and the glass. Turn plate over and perform again for the other side.
Warped pressure plate:
Same test as for friction plate.
Worn springs:
Check your service manual for proper spring tension.
Clutch cable:
Check cable for any binding, kinks or frayed ends - lube and adjust as needed.

While this is not gospel on all clutch slipping problems, it's what I'VE encountered in the past.

Most of this is pretty simple stuff that I'm sure you already know, but I thought it worth mentioning just in case someone else reading this thread is having the same or similar problems.

I've run into this a few times and what I do is take the clutch plates out, wipe them dry, and then I take emery paper and sand them lightly to take the glaze off. Doesn't take alot...just til the shine isn't there-you have a flat finish on them...you will know when you see it. It makes a huge difference sometimes. Last year when racing my Z, the clutch was slipping to the point you could actually feel AND hear it. Went back to trailer and took the clutch out and after I did the deglazing, the clutch started to work where it was pulling the wheel off the ground on launch. Old oil will stick to plates and make them slip also. One bike I was working on, this caused the clutch to slip so bad, it wouldn't grab enough to turn motor over when I tried to kickstart it.

I hadn't ever encountered glazing before so that was good to know about. Thank you. I think since I have the plates in house already, I'll drop those and some new springs in. I'll defintely check the metal plates for warpage too.

Mike