I have an echo backpack blower that started to die if I pushed it to full throttle (Which was the reason someone gave it to me) I flushed out the air filter(let it dry), and I took off the carb and flushed it out with carb cleaner. After I did that it worked perfect. Well, about two weeks later it started doing almost the same thing but this time is doesnt shut off. If I have the throttle switch 1-2cm away from "full throttle" its fine, But as soon as I go full throttle, it still runs but looses a ton of power. Another thing I noticed is, even 2cm away from full throttle, It doesnt have as much power as it did once the throttle is moved forward even the slightest bit. Any Ideas?