ORIGINAL: Andrewmc
But the gradual fall in rpm happened a couple of other times. I leaned the HS needle a couple of clicks until the engine seemed to be running at a constant speed of 9500rpm and then shut off the engine. It seems to be ready to fly but I am a bit concerned about the variability in rpm at WOT. Is this just a function of breaking in the motor or should I make the adjustments to the low speed needle and check it again?
This sounds little air bubbles in the line...I have the saito 65 with a 13x6 prop and it is scary powerful!!!..Ifly mostly .049 to .15 stuff ,,I bought the stick/saito from a bud and it started on a back bump the first time at full throttle and scared the crap outa me, not near as fun as my little stuff though, may sell it myself...Rog