Broken Valve Holder - Main Valve on a YZ 250

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Sep 6, 2006
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#1
In the middle of pulling apart and cleaning my powervalve last night, I found a small metallic part laying in the spooge. It was one of the top tabs on my main valve holder (not the hooked fingers or the mounting tabs). Being new to all of this, I cannot figure out what that tab is supposed to do. Hopefully someone here knows and can inform me. I have ordered a replacement part but am interested in leaarning what it does and whether it is likely to have any impact on the way the bike runs.

By the way, is it normal to have the entire powervalve compartment covered in spooge - to the point that there was enough of it to run out when I took off the cover?

Thanks!!