One possibly related annoyance I have with my model B is the barely above-idle throttle position:
When throttle is opened just slightly above idle, the engine runs super lean 18-19:1 afr.
Idle mixture is tuned ~14.5 and mid to full throttle cruise is slightly rich ~13.5 afr.
It's annoying when starting from a stop since the engine is super lean whenever I'm trying to feather the clutch.
I wonder if the problem could be solved by installing a bigger jet, and compensating with a weaker power piston spring?
