What was found
WITH A FACTORY OVERHAULED ENGINE, THE FUEL SERVO FAILED AFTER 32.4 HOURS. AFTER REPAIRED IT LASTED 12.2 HOURS. THEN INSTALLED A NEW SERVO AND IT ONLY LASTED 3 HOURS. ALL THREE FAILURES WERE THE SAME, THE MIXTURE SHAFT CAME OUT SLIGHTLY CAUSING A MISALIGNMENT WITHIN THE SERVO WHILE ATTEMPTING RE-START. THIS COULD BE A SERVO PROBLEM AND OR A FUEL SYSTEM PROBLEM. HAVE YET TO CONFIRM WHAT IS CAUSING THIS PROBLEM. A SERVICEABLE OLDER STYLE SERVO SEEMS TO BE ABLE TO OPERATE FINE ON THIS ENGINE.