CUSTOMER BOUGHT UNIT 07-15-2014. HIS COMPLAINT IS AFTER ABOUT 20 MIN OF RUN TIME UNIT STALLS AND IS HARD TO START. THIS MOWER STARTS AND RUNS GREAT. IT DOES HAVE A INLINE FUEL FILTER. AFTER RUNNING UNIT A FEW TIMES THE ENGINE WILL STALL--ACTS LIKE IT IS RUNNING OUT OF FUEL. I AM WATCHING THE...