I have a MAGNUM .52, XLS which is kinda hard (tweeky) to tune. It ran fine on the engine stand with a 12 x 6. When installed on my new Hanger 9 Piper Pawnee (had a Mecoa .46 w/ 11 x 6 & it didn't have enuf power, Flew like the real thing tho.. really scale..) it won't run with the pressure line hooked up! Runs fine with line unhooked! But won't run but about 1/2 speed with pressure line hooked.
I have never had this problem! Almost never figured out what was makin engine blubber!
Any help, commenst ideas would be greatly appreciated!!
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