2003 Ski-Doo ZX Series Factory Shop Manual, Page 258Get this manual
Section 06 ELECTRICAL Subsection 02 (IGNITION TIMING)
Connect MPEM programmer to DESS postTurn on programmer then enter passwordFrom main menu select no3INFO VEHICLE
Now the display shows the engine timing correction factor that is programmed in the MPEMIn the following example timing correction factor is no4
A30E1XA
CHECK KEYS PROGRAM KEY VEHICLE INFO TA RT A30E21A
TIMING1-8:4
Vehicle information is transferred from MPEM to programmer
Press any key
MODIFY? TRANSFER PGMR MPEM
A00A3DA