I suffer from an unstable idle setting on my BME 44. Having set up the engine to a reliable idle with the transmitter throttle trim, I have a successful flight with good high end and transition. When I start the engine for a second flight, the idle is too high and I have to lower the trim. The next time, it is too low, etc. I have to continue to make this adjustment after each flight.

I have already removed the carb, and reinstalled using silicone gasket paste.

Other than this constant idle adjustment, the engine runs great, with lows of power.

Any suggestions would be appreciated.