'81 GPz clutch is apart, take a look.

  • SWest
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  • 10 22 2014
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27 Feb 2016 15:44 #712754 by SWest

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27 Feb 2016 19:56 #712786 by MadShad
Replied by MadShad on topic '81 GPz clutch is apart, take a look.
New springs are in, old disks are back in, oil is back in the bike.
the actuator has been cleaned, lubed and readjusted. I might be the only person to see the inside of that actuator in 35 years, I think the grease was about 3 weeks away from becoming diamonds..
pushrod was straight and the cable was completely removed from the bike and flushed with wd40 and then lubed with lithium grease forced into the cable using a plastic bag taped on the end.

I can't comment on how the clutch grabs yet but the action is smooth and I didn't notice much of an increase in lever effort.

Now I just need that decent weather that the forecast has promised tomorrow and I'll know for sure ;)

The ebc springs were taller but had a smaller material size or wire diameter .

Shelbyville, Indiana. '80 KZ1000
No more of that talk or I'll put the leeches on you, understand?
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28 Feb 2016 06:55 - 28 Feb 2016 06:58 #712823 by KZB2 650
Replied by KZB2 650 on topic '81 GPz clutch is apart, take a look.
Wow EBC's are defently taller and have never thought the lever was much harder to pull ...... I've used Barnett's springs for ever and my old ones were sagged .040 over the new .... threw the stock plates and springs away in 84 when I replaced em with Barnett plates too....... what a mistake and waist that was bet the stocker's were just broken in..... went back to oem plates this time..... Will probably replace the springs every 5-7 years. Betting you fixed it... am pulling for ya.

1978 KZ650 b-2
700cc Wiseco kit 10 to 1.
1980 KZ750 cam, ape springs, stock clutch/ Barnett springs.
Vance and Hines Header w/ comp baffle and Ape pods, Dyna S and green coils, copper wires.
29MM smooth bores W/ 17.5 pilots, 0-6s and 117.5 main
16/42 gearing X ring chain and alum rear JT sprocket.
Last edit: 28 Feb 2016 06:58 by KZB2 650.

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  • SWest
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28 Feb 2016 07:02 #712824 by SWest
Replied by SWest on topic '81 GPz clutch is apart, take a look.
My springs were 40 years old. They don't get heavy use like valve springs. These used 900 springs are like new and the plates perfect. Never has a clutch slip.
Steve

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28 Feb 2016 07:20 #712830 by KZB2 650
Replied by KZB2 650 on topic '81 GPz clutch is apart, take a look.
Thinkin you'd be surprised if you ever checked their tention and length..... my cam tensioner spring was quite a bit shorter and weaker along with the the oil filter spring too..... true valve springs have a much harder life but heat and use over 40 years has to work on them.

1978 KZ650 b-2
700cc Wiseco kit 10 to 1.
1980 KZ750 cam, ape springs, stock clutch/ Barnett springs.
Vance and Hines Header w/ comp baffle and Ape pods, Dyna S and green coils, copper wires.
29MM smooth bores W/ 17.5 pilots, 0-6s and 117.5 main
16/42 gearing X ring chain and alum rear JT sprocket.

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28 Feb 2016 07:24 #712832 by MadShad
Replied by MadShad on topic '81 GPz clutch is apart, take a look.
Well, my problems are over at least for the time being.
Just took it out, no slip on upshifts and it pulls harder at the top end so although i didn't notice it must have been slipping there as well.

Now i get to enjoy this warm day, untill something else goes wrong....
Thanks again!

Shelbyville, Indiana. '80 KZ1000
No more of that talk or I'll put the leeches on you, understand?

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  • SWest
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  • 10 22 2014
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28 Feb 2016 07:32 #712837 by SWest
Replied by SWest on topic '81 GPz clutch is apart, take a look.
Good for you. Think positive. It's a beautiful day. :) NOW RIDE THE PISS OUT OF IT. :woohoo:
Steve

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28 Feb 2016 14:41 #712915 by Nessism
Replied by Nessism on topic '81 GPz clutch is apart, take a look.
Those EBC springs have almost a full coil less than the stockers, which means they will be a good bit stiffer.

Some guys use three HD aftermarket springs mixed with three stockers. That way you don't have as much hand effort as a full set of aftermarket springs.

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28 Feb 2016 14:46 #712917 by undiablo
Replied by undiablo on topic '81 GPz clutch is apart, take a look.
Good to hear problem is solved. Ride it like you stole it!

Kawasaki KZ 750/4 LTD 1981
Kawasaki KLR 650 2011
Argentina - Buenos Aires

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28 Feb 2016 15:56 #712938 by loudhvx
Replied by loudhvx on topic '81 GPz clutch is apart, take a look.
These only have 5 springs, so it would not be recommended to mix springs.

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