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FCR Tuning - Adjusting throttle openings below 1/4 with the air screw, slow jet, and jet needle straight diameter - 2023-06-11...
This time, I will write about the air screw, slow jet, and the straight diameter of the jet needle from my perspective. This primarily concerns the throttle openings from about 1/4 to 1/2. Recently, I addressed and improved the issue where the throttle would hesitate during rapid opening—whether it was lean or rich was unclear. I will document the improvements made.