Bombardier SeaDoo 2000 factory shop manual volume 1, Page 256Get this manual
Section 08 ELECTRICAL SYSTEM Subsection 02 (IGNITION SYSTEM)
MPEM Programmer
NOTE: For more information on the programmer, refer to the MPEM programmer guide (PN 219 700 090)Through the MPEM programmer, the ignition timing can be advanced up to or retarded up to 4The MPEM programmer corrects the ignition timing in incrementsCAUTION: If the ignition timing is adjusted too advanced, this will cause serious damage to the engineThe timing mark on the PTO flywheel refers to the physical component position when the spark must occursThe MPEM must be synchronized with the markFor instance, on particular engine, the timing correction may need to be advanced to so that the mark aligns with timing mark pointer toolThis is not the real spark advance, just correction for the tolerances of the mechanical componentsKnowing that, you select with the programmer the higher or lower number to advance or retard the actual timing correction by referring to the following chartTIMING CORRECTION CHART PROGRAMMER NUMBER (MPEM) IGNITION TIMING CORRECTION 4