Going CRAZY with worry after valve check

[Nessism]

Many of us will extend our clearance range and go to about 0.10mm. The 0.12 might be OK, but the 0.15 is pushing it. I would just change one shim size there to take it to 0.10.

The valve clearance spec for Kawasaki KZ1000-1100's is .05-.15 mm and they use a shim over bucket design just like GS bikes. In fact, Suzuki copied the KZ engine when designing the GS engine family. While I don't normally recommend .15 clearance for GS bikes I feel they are safe to run for guys that won't be racing.

[Kara25]

Final update.! Changed two shims the ones with 0.15mm clearances-brought them down to 0.10 put new cover gasket etc and fired right up! Smooth and silent engine now. 😁 thanks everyone for the help! 🙏🏼💪🏻

[Steve]

Thanks for the update.

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[wymple]

I'm still not understanding how the .15 mm clearance caused any running issues. Too tight, yes, a little loose, no.

[Steve]

Oh, it will run, but you will have less valve lift and less duration, so performance will be a bit less than it should.

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