ORIGINAL: pghmike
if you do run a filter...how do you pinch line to cut off engine? is this the only way used to stop engine other than running it copletely out of fuel?
You can adjust the carb/servo linkage so that when the throttle stick and throttle trim is pulled completely down it'll close the carb. Therefore cutting all air going into the engine and stopping the motor.
I also just filter the fuel before it goes into the tank.