I have posted before about the Stalker 66.I got it running consistently but here is the problem. It breaks normal on inside turns but goes lean on outside turns and stays lean through the maneuver. It runs a nice 4 cycle upright and inverted level.I had the tank shimmed way down at one point,then went to even with spraybar then shimmed down slightly but it doesn't make any difference.I will try going the other way but this will be the wrong way per what the norm is.I also tried a different tank.That didnt change anything. Any suggestions?

I cured this problem on a Fox .19 mounted on a Lil' Dynamite with the engine inverted by opening the needle valve several clicks. It always died on a outside loop at the 2 o'clock position.I believe, in my situation, the fuel was being thrown away from the glowplug so i just let it have some more. It doesn't quit on the outsides now.

I don't know much about the Stalker .66 (tho Alan Resinger has one in his Firecracker...kewl!), but thinking it's a rear exhaust & Schneurle ported, it might need to be mounted sideways (or close), like the Retro Discovery.  They made those things for some years, before they changed to the planes to sidemount. I know Dave Simons sent his from Australia to Ukraine to get it converted...it was his idea to go sidemount, as I understand it.  Steve

As per Randy Smith - Fuel , GLO-plug and running tips

"A lot of times the plug problems show up as rich inside maneuvers and leaner outsides; this happens because gravity and centrifugal force ,forces the oil-fuel charge down on the element on insides, thus cooling the coil and pulls it away on the outside maneuvers, letting it naturally go leaner.  I have seen this problem instantly cured by simply changing plugs. Please  do not be  afraid  to put in a  new  glo plug , or try different types of plugs ."

trcap1