ORIGINAL: TCrafty

I know it's a different engine but my OS46LA gurgles, rattles or burbles when I let off of the throttle. Kinda sounds like a Harley with a Jake brake. It runs good, idles like a champ and has given me nothing but good flying. It's well broken in and I don't think it's excessively rich. I know, I'm opening myself up for the nay-sayers of the LA's carb, how it's absolutely no good and i'll never get a good tune out of it, etc. But, that 46 LA spins a 10X7 APC 3-blade just fine, looks cool in my thunder Tiger Lazy Tiger and flies it like a combat plane if I want it to. Well, maybe not JUST like a combat plane but it'll move along if I wanted to. Actually, I went with the 46 because I like to overpower and run with less throttle, I went with the LA because it was as light as my 25 Magnum and much more powerful. I'm not sure if it's the same noise that you're noticing but mine does have some noise to it between 1/2 and 3/4 but only when I let off the throttle.