ORIGINAL: tym2brn
yesterday flying my caps with the rcgf 45cc....ran good for the first flight, second flight engine started popping a lot....any idea's?? too rich? too lean?? .....................mark
Usually a sign you are a little rich on the top end. If it is popping in the mid range then your low end is a bit rich. Could be related to ignition and spark plugs but more likely it is just a tad rich in the air.