I CHECKED THE AIR FILTER AND IT WAS SOAKED WITH GAS SO I PURCHASED A CARB AND STILL WONT RUN . I REPLACED ALL THE FUEL LINES AND F/FILTER STILL WONT RUN .CHECKED SPARK AND IT HAS SPARK, EXHAUST SCREEN IS CLEAN..STILL WONT RUN.. ALL MY OTHER WEED EATERS ARE RUNNING ON SAME GAS.. ANY IDEAS... THANKS