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Went to do the valve clearance check on my 1994 Suzuki Katana 600 and was dismayed to find that I have zero clearance on any of the valves... Even my thinnest feeler gauge won't slip between and it visibly looks like hard contact. 16,000 miles on it and as far as I know this has never been checked.

Is this engine a lost cause? Or, can I attempt thinner shims and see if I can get some clearance?

Brian Knoblauch
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Based on memory of similar bucket shims the process was to remove all shims then measure the gap and do a bit of subtraction to get the required shim thickness.

And also needed is a big supply of shims - last time I did that I was at the main dealer so I had access to the full range... But if you have to order and wait that is not so much fun.

Solar Mike
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