<DIV>Sounds like fuel to me. Maybe to much oil in this batch. Easy to find out just try some Cool Power 30 Heli. See what happens. Seams like you were having this problem in St. Louis. Have you pulled the head off to see if the build is anywhere else like the the valves? <BR><BR><B><I>Todd Schmidt <tschmidt@classicnet.net></I></B> wrote:
<BLOCKQUOTE class=replbq style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">Has anyone had a problem with an engine carboning plugs. My engine will run<BR>fine on the first flight of the day.<BR>Start the engine the second time, sounds good at first but will load up<BR>while getting ready to take off. Won't clean out. Shut down, restart, runs<BR>up good and then loads up again. Change the plug and everything is good for<BR>two or three flights. Starts acting up again and I find a carboned plug.<BR><BR>I had this problem about a month ago right after cracking open a new can of<BR>fuel. Ordered new fuel (new order came in with same batch# as suspicious<BR>gallon) and had good luck for a couple gallons, but back to "not so<BR>good".... Could fuel possibly be the problem? Engine has run very consistent<BR>until now.<BR><BR>Powermaster DZ 30<BR>OS F plug<BR>Hatori Pipe (new mid season)<BR>NMP header<BR>16X11 APC prop.<BR><BR>Thanks for any
suggestions!<BR><BR>Todd<BR><BR><BR>=================================================<BR>To access the email archives for this list, go to<BR>http://lists.f3a.us/pipermail/nsrca-discussion/<BR>To be removed from this list, go to http://www.nsrca.org/discussionA.htm<BR>and follow the instructions.<BR><BR>List members email returned for mailbox full will be removed from the list.<BR><BR></BLOCKQUOTE></DIV>