Hello guys the helicopter in this case is mine. My problem is not a flame out. Actually we don't know what is.
We changed the pump the problem almost gone aways but still happens. With the previous pump it also happened when giving full thootle in flight and quickly stick down. <br><br>I realized that the pump is getting hot, may be too hot for a pump because the proximity with the exhaust:<br><img src="http://www.rcuniverse.com/forum/attachment.php?attachmentid=2031904&stc=1" attachmentid="2031904" alt="" id="vbattach_2031904" class="previewthumb"><br><br>I believe next step is changing the pump place and if not solved change the RPM sensor to a new one.