Thanks for reply. Bike has 25.000 km and never had a valve adjustment. Also there is a thicking sound coming from the engine (could be that the ticking sound is coming from the EXT valve marked by me with F2, quite high clearance).I have been using the EXT 0.25-0.30 setting on mine. I understand they changed the setting to 0.20-0.25 later on. As for the thickness you'll need, if your mesurement is .10 too tight, get a shim that much thinner than what is in there now. Measure each vlave, they most likely wont all bee the same. If you buy a kit, you can simply try thicker or thinner shims till you get the reading you need. Valve tend to get tighter as they wear, so should need thinner shim than what is in it now.
My actual configuration is as in the picture. If I choose the 0,2-0,25 for EXT, then only valves F3 and R2 are OK.
I understood that shims can be reused.
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