Clutch slipp

  • gordone
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Re: Clutch slipp

16 May 2020 06:27 - 16 May 2020 06:28
#825843
Thank you all :)
I don’t have history ln the engine, so the old springs can come from another engine also.

When a clutch start to slip rarely, it will not progressive increase in slipping over time or can it goes fast to be useless clutch function? can it be a danger that I will get problems on weekend trips....?

I will check oil level and clutch adjusment, and in worse case overhaul the clutch after the season (winter time)..,,
1981 KZ650-D4, with 1981 z750L engine (Wiensco 810 big bore).

Project:
www.kzrider.com/forum/11-projects/607213...sr-1981-z750l-engine
Last edit: 16 May 2020 06:28 by gordone.

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Re: Clutch slipp

21 Aug 2020 22:09
#833470
Anyone?

When starts slipping is it short time before it useless? Or will it slip more and more over long time?

I’m thinking rebuild in winter time or not...
1981 KZ650-D4, with 1981 z750L engine (Wiensco 810 big bore).

Project:
www.kzrider.com/forum/11-projects/607213...sr-1981-z750l-engine

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  • DoctoRot
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Re: Clutch slipp

22 Aug 2020 01:17
#833475
Its only a problem when the clutch slips under all conditions. If you can adjust your riding style to avoid slipping it is no problem. If it is constantly slipping you should replace it sooner than later because the clutch material will end up through out the entire engine, and you are over reving your engine.. clutch change takes maybe 60 min.
'78 1000 Long Term Project
 '80 750G
 750 Twin Big Bore Track Bike
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Re: Clutch slipp

22 Aug 2020 04:44
#833478
Thank you, its not urgent then, maybe I will do it in winter if I have some left over time :)

Material:
1.
Friction plates, 7 discs?
www.partzilla.com/product/kawasaki/13088...e19f8a2e44b2b16e639d

2.
Clutch springs, 5 springs
www.partzilla.com/product/kawasaki/92081...e19f8a2e44b2b16e639d

3.
Clutch cover gasket.


These all the parts I need?
1981 KZ650-D4, with 1981 z750L engine (Wiensco 810 big bore).

Project:
www.kzrider.com/forum/11-projects/607213...sr-1981-z750l-engine

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Re: Clutch slipp

22 Aug 2020 07:29
#833480
That should be all the parts you need unless you have warped steel discs which would be caused by overheating/severe slippage.

Mike
Former M.E. at Kawasaki Motors Manufacturing, Lincoln, NE
1966 W1 (the Z1 of 1966-50H.P. and 100mph!)
1974 Z1
1978 KZ1000 LTD
1976 KZ900B pile O parts
1980 KZ750E
1980 Honda XL250S (I know, wrong flavor!)

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  • Nessism
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Re: Clutch slipp

22 Aug 2020 07:46
#833481
Most of the time swapping in new OEM springs will solve minor slippage issues. The friction discs typically last for the life of the bike, unless the bike was used for drag racing where hard launches burn off a lot of material.

Personally, I'd order new OEM springs and an OEM clutch gasket. Grease the gasket so it doesn't stick and slam in the springs now. It will only take an hour or so. Worst case, change the friction plates in the winter if the springs don't fix it. Also, a new clutch cable is a thing of beauty (so smooth) so consider one of those if your bike is still running one that's decades old.
Ed
Carb O-ring Kits : www.kzrider.com/forum/3-carburetor/61807...-o-ring-kits?start=0

www.kzrider.com/forum/faq-wiki/618026-new-owner-things-to-know

1981 KZ750E2
www.kzrider.com/forum/11-projects/604901...z750e-project-thread

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Re: Clutch slipp

22 Aug 2020 08:49
#833485
Nessism wrote: Most of the time swapping in new OEM springs will solve minor slippage issues. The friction discs typically last for the life of the bike, unless the bike was used for drag racing where hard launches burn off a lot of material.

Personally, I'd order new OEM springs and an OEM clutch gasket. Grease the gasket so it doesn't stick and slam in the springs now. It will only take an hour or so. Worst case, change the friction plates in the winter if the springs don't fix it. Also, a new clutch cable is a thing of beauty (so smooth) so consider one of those if your bike is still running one that's decades old.

Thank you all :)
1981 KZ650-D4, with 1981 z750L engine (Wiensco 810 big bore).

Project:
www.kzrider.com/forum/11-projects/607213...sr-1981-z750l-engine

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Re: Clutch slipp

22 Aug 2020 09:04
#833488
Partzilla don’t shipp internationsl due to the virus :(
1981 KZ650-D4, with 1981 z750L engine (Wiensco 810 big bore).

Project:
www.kzrider.com/forum/11-projects/607213...sr-1981-z750l-engine

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Re: Clutch slipp

22 Aug 2020 09:04
#833489
Be sure your motor oil has "JASO-MA" marked on it. Otherwise there's a significant chance that the motor oil, which will very likely contain "friction modifiers", will ruin the new clutch plates. Ed
1977 KZ650-C1 Original Owner - Stock (with additional invisible FIAMM horn)

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Re: Clutch slipp

22 Aug 2020 09:14 - 22 Aug 2020 09:16
#833491
Cmcln.com had the part to a lower price also :)

I’m using correct oil... but don’t have control over what the previous owners have done...

I purchased everything now, shall clutch not be any issue for rest of my life :)

Should I do something with the metal plate, clean them?
1981 KZ650-D4, with 1981 z750L engine (Wiensco 810 big bore).

Project:
www.kzrider.com/forum/11-projects/607213...sr-1981-z750l-engine
Last edit: 22 Aug 2020 09:16 by gordone.

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Re: Clutch slipp

22 Aug 2020 09:19
#833493
www.cmsnl.com/products/springclutch_920811176/#.X0FFZyTa2Ec

Should be ok, can not see if its OEM...
1981 KZ650-D4, with 1981 z750L engine (Wiensco 810 big bore).

Project:
www.kzrider.com/forum/11-projects/607213...sr-1981-z750l-engine

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