<html><head></head><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:16px"><div dir="ltr" id="yui_3_16_0_ym19_1_1465479762537_2971"><span id="yui_3_16_0_ym19_1_1465479762537_2970">I had the same problem on a Pletty. I reduced the timing from 24 to 22 and the knock went away.</span></div> <div class="qtdSeparateBR"><br><br></div><div class="yahoo_quoted" style="display: block;"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;"> <div dir="ltr"><font size="2" face="Arial"> On Wednesday, June 8, 2016 9:01 PM, Jamie via NSRCA-discussion <nsrca-discussion@lists.nsrca.org> wrote:<br></font></div> <br><br> <div class="y_msg_container">Have a Friend that just got his first 2 meter airborne yesterday, and asked me if a knocking sound is normal for the OS controller ? <br>Know my Jetti controllers make a odd noise when on and off my throttle. <br>Just wondering<br><br>Jamie<br>Prattville, Alabama<br>_______________________________________________<br>NSRCA-discussion mailing list<br><a ymailto="mailto:NSRCA-discussion@lists.nsrca.org" href="mailto:NSRCA-discussion@lists.nsrca.org">NSRCA-discussion@lists.nsrca.org</a><br><a href="http://lists.nsrca.org/mailman/listinfo/nsrca-discussion" target="_blank">http://lists.nsrca.org/mailman/listinfo/nsrca-discussion</a><br><br><br></div> </div> </div> </div></div></body></html>