Couple of questions on fouled plugs. I have been flying a Cherokee 180 since the Darter went down. This plane is flown regularly. Each time I get in and do the run up, the second click runs rough. I then do a lean rpm run to clear the plugs. Repeat the run up procedure to confirm the carbon burned off.
I lean to taxi, lean after takeoff and cruise, etc, etc....
When I get back from my XC, I do a run up to see if the fouling returned. The answer is yes. This has happened the last three trips of 1.4 hours each. I don't know how the others fly the plane, but I doubt they lean as consistently as I do. I "feel" as if I lean enough, but what do I know?
What is the best practice for burning off carbon? What is best practice for leaning? Is there something mechanical going on?
Thanks, David.