2008 Evinrude E-TEC 55MFE Technical Manual, Page 128Get this manual
ELECTRICAL AND IGNITION TIMING ADJUSTMENTS Repeat the entire adjustment process to make sure pointer is aligned correctlyInstall spark plugsRefer to Spark Plug Indexing on p65
TPS Calibration
Use Evinrude Diagnostics software to tell the EMM what throttle position sensor voltage is when the throttle plates begin to openRemove the air silencerOn the Settings screen of the diagnostics software, click the "Set TPS Calibration" button
Timing Verification
Use Evinrude Diagnostics software to synchronize the mechanical timing of the outboard with the electronic timing of the EMM
1TPS Calibration button