Hi Scott and all the others! I had thought of that earlier and checked. My vent is next to my venturi on the right side underneath. I checked it for a clog and ran air to see if I could hear it in the tank. Mine is also a gravity feed. I'm going to do the egt test for carb adjustment hat is called out in the revmaster manual. I might be able to get by with just a few turns out on the adjustment needle. (we can always hope ;-) ) SWRFI! I hope to make it. My Scorpion helicopter won "Reserve Champion Rotorcraft" in 2003 not that I think that I will win any thing this time! So many fixed wings so few rotorcraft!! Jeff hope to see you there at HDO
any other KR's going? Brian G. Douglas N8575C was a TD Killeen Texas ----- Original Message ----- From: "Jeff Scott" <jscott.pi...@juno.com> To: <kr...@mylist.net> Sent: Monday, May 02, 2005 10:42 AM Subject: Re: KR> Help please! High Speed Miss > > Brian, > > Don't know if this will be helpful or not, but is something to check. > Under certain circumstances, my KR (gravity feed fuel system) used to > either stumble or shut down during high speed passes and would re-fire as > soon as the speed bled off. It turned out that the vent for the header > tank was in a position such that when I would get the speed up around > 175+, I would get a sufficient negative pressure draw on the vent line > which would stop the fuel flow to the carb. A minor relocation of the > fuel vent to ensure positive pressure at all speeds is all that was > necessary to fix the problem. > > BTW, are you going to get your KR to SWRFI? Weather permitting, mine will > be there. >