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ok so i picked up an 05 636 one owner bike with a little over 15K on it. got valve cover off for the 15K maintenance check. after gauging all valves which was PITA the exhaust valves are extremely hard to get a good measurement on. anyway what i found was i could re-shim almost every valve. they all seem really tight. just a few are actually out of spec but the others are not far away. not what i expected to see at 15K. just wondering if this is normal
 

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On my 05 636 i did the valve check at 24k kms or 15k miles same as yours.. i changed 3 shims I think and a couple others were headed towards tight as is the norm I believe but I didnt change em as they were still well within limits, A friend did his around what would be 18 or 19k miles and Im pretty sure 9 were out of spec on his. To answer your question Id say its to be expected that most are heading towards tight though.
 

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Im at 24k and still no valve check, should prolly get on that soon but not seeing/hearing any signs of service needed yet.

Side note, im close by down in chattanooga, welcome!
 

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Every motor is different and every bike gets used differently by it's owner(s). Valve clearances tend to get smaller rather than larger. If they are too tight, use smaller shims to loosen them to the proper values. It's likely the next time you do the procedure, there will be less tight clearances, but you never know until you get in there and check.
 

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Im at 24k and still no valve check, should prolly get on that soon but not seeing/hearing any signs of service needed yet.
As valve clearances tighten up, they make less noise, so just because your motor's not noisy, doesn't mean it shouldn't need attention. The valve train will be really quiet right before valves begin to burn.
 
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