got a echo 500 vl. been sitting for who knows how long. runs wont tune on high side. Too rich even with h screw closed. Tunes on L. Has walboro HDB carb. Can the gasket under the fuel inlet lever plate leek and cause fuel to run straight into the main port....Only thing I can think of looking at the carb. H and L screw have different thread pitch so cant be swapped. What got me on the carb is it runs like the transfer port welch plate not sealing on a Zima carb...any thoughts..
thanks
the can
thanks
the can