Kawasaki 750 GPZ R1 clutch adjustment

  • Oldsckool
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Kawasaki 750 GPZ R1 clutch adjustment

01 Sep 2025 17:57
#916678
Need help adjusting the clutch on my 1982 Kawasaki 750 GPZ. I read the book and followed the instructions but I can’t get the clutch to adjust enough to release. The rear wheel still spins. Everything is new so no issues with cable etc. reading the book it talks about adjusting the adjusting screw. It says  to screw in til it stops. But it’s reverse thread so are turning the flat head in or out. Does any one have an abbreviated way to get it properly adjusted.

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  • gd4now
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Re: Kawasaki 750 GPZ R1 clutch adjustment

01 Sep 2025 19:30
#916680
Here is my answer but I will add to it afterward. With reverse thread as you turn it counter clock wise it is tightening it. Turning it clock wise is loosening it.

Most manuals I have read indicate something like the following, when adjusting the clutch. Turn it till tight and than back it off so much. I have always wondered what tight means. I would think to some it means it can not be turned any more, to others just till it gets hard to turn, and others yet somewhere in between.

I have found I tend to have to play with this adjustment to get the clutch working as it should.
1977 KZ650 B1
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  • Nessism
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Re: Kawasaki 750 GPZ R1 clutch adjustment

01 Sep 2025 20:13
#916681
Turn in the adjuster at the grip, so you just have a small bit of adjustment remaining.  Maybe one or two threads.

Loosen the lock nut on the adjuster on the cover, then play with the adjustment screw, while feeling the lever.  I can't remember if you need to turn RH or LH thread, just play with it until you get a good amount of freeplay at the hand grip.  Then snug down the adjuster lock nut.

It's normal for the rear wheel to turn when the clutch is pulled in, because of drag from oil and light friction.  It shouldn't be transmitting much if any torque, though.

 
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  • Oldsckool
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Re: Kawasaki 750 GPZ R1 clutch adjustment

01 Sep 2025 20:52
#916684
Ok thank you I’ll try that method. 

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  • Wookie58
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Re: Kawasaki 750 GPZ R1 clutch adjustment

01 Sep 2025 23:53
#916685
Need help adjusting the clutch on my 1982 Kawasaki 750 GPZ. I read the book and followed the instructions but I can’t get the clutch to adjust enough to release. The rear wheel still spins. Everything is new so no issues with cable etc. reading the book it talks about adjusting the adjusting screw. It says  to screw in til it stops. But it’s reverse thread so are turning the flat head in or out. Does any one have an abbreviated way to get it properly adjusted.
As Nessism says this is normal, is this the only reason you think the clutch isn't "clearing" ? - When the wheel is turning on the stand apply the rear brake, does the engine speed change ? if yes then there is an issue with the clutch, if no then it's all good

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  • H1Vindicator
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Re: Kawasaki 750 GPZ R1 clutch adjustment

03 Sep 2025 07:45
#916744
clutch adjustment. check the manual to see what it says for the 81 and 82 models. 

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  • RonKZ650
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Re: Kawasaki 750 GPZ R1 clutch adjustment

Yesterday 20:29
#916779
Over the years, mostly zero have agreed with me, but in my opinion and a lot of miles, don't adjust the clutch except for the cable free play at the lever. Adjust at the lever and/or the cable. Once the engine adjustments are done, which 95% of the time the manuals turn the adjustments into the stratosphere somewhere in space, it can be difficult to get things right. Don't fall for the "tighten until seats, back off 3/8 turn" or whatever crap the manuals say, just adjust the cable and you will never have a problem. Of course once adjustments are botched up at the engine, unless it can be returned where it was there may likely be a period of stress to get it back.
321,000 miles on KZ's that I can remember. Not going to see any more.

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  • Injected
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Re: Kawasaki 750 GPZ R1 clutch adjustment

Yesterday 13:34
#916788
The '82 and later 750 throw out bearing assembly is different from earlier versions, I have one on my 650 with 750 engine conversion.

 

 

   
1978 KZ650B2 w 1197cc Z1 engine
1977 KZ650B1 w 750cc Spectre engine
1979 KZ650C3 w 831cc Hot Rod engine
1978 KZ650C2 w 762cc DFI project
1977 KZ650C1 stock restoration project
1978 KZ650B2 modified project
1978 KZ650B2 Injected Drag 831cc
1980 Z1 Custom Frame Drag 1327cc
1981 Z50R Honda tow bike
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