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#1
11-11-2008, 05:05 PM
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Power valve rotation
I'm doing some wrenching on the .05 EC250 to get her ready for this weekend's race. I took off the LTR PV cover on the left side to see how things were working.
I etched the end of the little rod inside the bearing (looks like a donut hole in a donut) and started up the bike. With the slightest of revs, the rod began to rotate counter clockwise. By the time I got to half throttle, the rod had rotated just beyond 90 degrees. Questions: is just over 90+ degrees the amount I should be looking for, and is this the rate of PV opening I should be expecting? 
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