Small Engines (Lawn Mowers, etc.): fs 66 problem, stihl fs, weed eater

Question
Hi there! I'm having a problem of starting my fs 66, before it was working fine...but when tried to trim the screws it stall & never runs again...this is a used machine...what is the right setting of the carb?..i've tried the standard setting but doesnt work...cleaned everything..new spark plug...i am very happy to hear some information/tips about the STIHL FS 66 weed eater engine...



thank you,


richard

Answer
The screws should be turned in until they seat.  Then turn them out approximately  two turns for the high-speed screw and one half turns for the low speed screw.  Then start the unit and adjust the high-speed setting turnip in until it alters turn it out until it flaunts and then set it in the middle do not leaking out the engine by turning screw in to far to get more RPMs.  Then let the engine go to idle and adjust the idle circuit the same way.  Hopefully this will answer your question if not please get back to us good luck