I have a murray with the 14.5 quiet briggs,been sitting about 7 or 8 years,took the carb off,put in new needle,cleaned all the jets with a small wire and air hose,washed it all out good...it will idle all day,but if you open it up about 1/3 on up,it acts like its starving for gas and backfiring....cleaned the carb twice,any ideas?
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