Echo PB-580 T back pack blower smokes a lot

semimechanicman

Well-Known Member
I have an echo back pack blower that smokes a lot. I cleaned the carb and it starts and sounds fairly nice, but it smokes a lot and more when I rev it up. Don’t know what the problem is and I’m 99% sure the gas and oil is mixed well because I put it new. Any ideas?
 
If it smokes at high revs & not idle then the high speed jets are open too far or the carb is worn out if it is a rotary valve carb.
 
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