I have a 020 that is now 7 years old. I never adjust the carb. The only thing We do is clean the air filter & replace
the plug & maybe the A.V. isloators. 1 thing I really like about this saw is high power & low vib. I tried all other brand names of saws including jonsored. I haven't tried the
335 husky. But, from the other responses it sounds like it
low in the H.P. dept. To keep the muffler tight I used lock washer & high temp. lock- tite. This should work. Although
I not a cert. mechanic, I have had a lot of experience with
racing H20 cooled 2-stokes.