1. Troubleshoot fuel system. Unable to duplicate.
2. Removed and replaced (4) spark plugs with new on cylinder #1, #2, #3 & #4 P/N REM40E.
All maintenance performed on this engine was conducted in accordance with Lycoming Operator's Manual Model O-320 Series as revised, and the current regulations of the Federal Aviation Administration and is approved for return to service with respect to the work performed.