I HAVE A FARM PRO 2420 AND IT WILL START UP AND RUN AT AN IDLE BUT WHEN U HOLD THE THROTTLE WIDE OPEN IT ACTS LIKE IT RUNS OUT OF GAS THEN IF YOU PUMP THE BLEEDER PUMP A COUPLE OF TIMES IT WILL START RIGHT BACK UP. IT ONLY HAS 50 HOURS ON IT IF ANYONE COULD KNOW WHAT MIGHT BE WRONG I WOULD...