Valve shim calculator for K25 TC TwinCam bikes - 2010-2012 (2013 GSA).

dirty_t

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This came up in another thread - someone looking for advice on TC valve adjustments. A few years ago I decided to create a spreadsheet to help me calculate what size shim I would need as/when my valves needed adjusting on my 2012 R1200GS (K25 series). I got a little carried away and ended up turning it into more of an app that I call The Shimulator (TM).

Just measure your valve clearances (per the manual instructions), enter the measurements into the Shimulator, and it will tell you whether you’re in or out of spec, what size shims you need to get you back into spec, and the BMW part numbers for the needed shims.

https://docs.google.com/spreadsheets/d/1V9DpF5jgVGxs5MscDakCo2I3CI-wesuoZ2cD3V8v_xg/edit
(This is a view-only Google Sheet. To use it, first save a copy to your Google Drive, or download as Excel to your hard drive.).
:beerjug:
 
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That is great! Really good of you to share. Noticed it also has the BMW part numbers for all the shims too!

Nice one

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