BOMBARDIER SEA-DOO SPX 5838 1998 Shop Manual page 221

Examples:
a. You found the flywheel mark advanced. You
must retard the ignition timing.
– The programmer gives you the number 3.
Referring to the chart, number 3 returns a
correction of 2° (advanced) and this is too
much in this case.
– You estimate the correction should be set to
1° (advanced) to align flywheel mark. Back in
the chart, look to find 1° (advanced). This
gives number 4. Enter this number with the
programmer.
– You recheck the timing with the timing light
and if the mark is aligned, ignition timing is
properly set.
b. You found the flywheel mark advanced. You
must retard the ignition timing.
– The programmer gives you the number 3.
Referring to the chart, number 3 returns a
correction of 2° (advanced) and this is too
much in this case.
– You estimate the correction should be set to
1° (advanced) to align flywheel mark. Back in
the chart, look to find 1° (advanced). This
gives number 4. Enter this number with the
programmer.
– You recheck the timing with the timing light
and found that the flywheel mark is still too
advanced. You know now that the correction
made previously was not enough and you es-
timate the correction should be set to - 2° (re-
tarded) to align flywheel mark. Back in the
chart, look to find - 2° (retarded). This gives
number 6. Enter this number with the pro-
grammer.
– You recheck the timing with the timing light
and if the mark is aligned, ignition timing is
properly set.
c. You found the flywheel mark retarded. You
must advance the ignition timing.
– The programmer gives you the number 4.
Referring to the chart, number 4 returns a
correction of 1° (advanced) and this is not
enough in this case.
– You estimate the correction should be set to
2° (advanced) to align flywheel mark. Back in
the chart, look to find 2° (advanced). This
gives number 3. Enter this number with the
programmer.
Section 08 ELECTRICAL SYSTEM
Subsection 02 (IGNITION SYSTEM)
– You recheck the timing with the timing light
and if the mark is aligned, the ignition timing
is properly set.
Proceed as Follows to Adjust the Ignition
Timing with the MPEM Programmer:
1. Connect the communication cable to the
MPEM programmer and the other end to the
safety lanyard switch on the craft.
2. Press the ON/C button on programmer and
enter your password.
3. Press 3 to choose Vehicle info in program-
mer.
4. Press 4 to choose Engine param .
5. Press 2 to choose Timing adjust .
6. The programmer display a number that is
stored in the MPEM.
7. Press ó to choose yes for modify then press
Enter .
8. Now punch in the number that corresponds to
the degree you want for the ignition timing
then press Enter .
9. Press Menu to go back one level.
10. Press 8 to choose Save + Quit (even if item
no. 8 is not visible on the display, it is active
when you select it).
11. Press Enter to confirm yes you want to save
modifications to the MPEM.
12. You must see Operation successful . This
confirms that the new timing data has been
stored in the MPEM.
13. Unplug communication cable from safety lan-
yard switch on craft.
14. Press Off to close the programmer.
At this point, you can install the watercraft safety
lanyard and start the engine to check the effect of
the correction on the ignition timing. If further ad-
justment is required, repeat the procedure.
NOTE: The MPEM features a permanent (non-
volatile) memory and keeps the ignition timing
programmed even when the watercraft battery is
disconnected.
08-02-11