os fs 52s
I have an os fs 52 surpass. The problem I'm having is with idle. If I adjust the idle for smooth operation it dies when I gas it. The only way I can get a smooth transition from idle to full throttle is to run the idle rich. However, when I adjust it that way it vibrates terribly like it's got the "Hippy Hippy shakes". I am using 15% Cool Power and 12-4 prop. I have also tried an 11-7 prop just for the fun of it, it made no difference. The Spray bar of the carb is located abt 3/4 the way up from the bottom of the fuel tank. Any suggestions ?