What was found
CREW REPORTED, WHILE PERFORMING "IN RANGE" CHECKLIST, RT ENGINE QUIT. CREW PERFORMED ENGINE FAILURE CHECKLIST, AND WHEN AUXILARY FUEL PUMP WAS TURNED ON HIGH POSITION, ENGINE POWER WAS RESTORED. EMERGENCY WAS DECLARED, AND CREW ELECTED TO DIVERT BECAUSE OF BETTER WEATHER CONDITONS. LANDING WAS UNEVENTFUL, BUT AFTER LANDING, RT ENGINE QUIT AGAIN. MX INSPECTED RT ENGINE, PERFORMED GROUND RUN OF ENGINE, FOUND HIGH FUEL FLOW AND IDLE MIXTURE SETTINGS OUT OF LIMITS. AJUSTED BOTH HIGH FUEL FLOW AND IDLE MIXTURE SETTINGS, GROUND RUN CHECKED OK. AS A PRECAUTIONARY MEASURE, LT AND RT FUEL SYS WERE SERVICED WITH ISOPROPYL ALCOHOL IAW MM. AFT RELEASED BACK TO SERVICE.