As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE CREW REPORTED THE ENGINE (COUGHED) ON TAKE OFF. COMPLETED AN INSPECTION ON SUSPECT ITEMS. CLEANED, TESTED AND FLOW TESTED ALL NOZZLES, CLEANED AND TESTED SPARK PLUGS. SEVERAL WERE FOUND MARGINALLY FOULED. THIS ENGINE/FUEL CONTROL COMBINATION DOES REQUIRE SUBSTANTIAL ADJUSTMENT TO MAINTAIN PROPER IDLE SPEED/MIXTURE SETTINGS.