I have a husqvarna 225b handheld blower. This weekend i was replacing the fuel lines and noticed that the muffler screen was carboned up so i decided to remove it . Since then i have noticed that the blower is more responsive. Of course the exhaust is a bit louder and i noticed that the blower 4 cycles at w.o.t. like it should. It did not run this well even new. Are there any ill effects from removing the screen that i am unaware of ?