Sea-doo 2001 GS, Shop Manual

Page: 257 / 456

Section 08 ELECTRICAL SYSTEM
Subsection 02 (IGNITION SYSTEM)
08-02-12
SMR2000-021_08_02A.FM
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 programmer.
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
Ø
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 con-
firms 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.
787 RFI Engine
To adjust ignition timing on this engine, Fixed
Timing function must be activated first. This func-
tion allows to perform ignition timing at any RPM
due to its ignition which is speed and load inde-
pendent.
NOTE: Fixed Timing function must be activated
before starting engine.
Fixed Timing Function
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 programmer.
4. Press 8 to choose Bosch system .
5. Press 1 to choose Diagnosis .
6. Press 4 to choose Adjustment .
7. Press 4 to choose Fixed timing .
8. The programmer display Timing = XX.XX deg .
9. Press any key to continue. Programmer will go
back one level to Adjustment .
10. Press Menu to go back one level to Diagno-
sis .
11. Press Menu to go back one level to Bosch
system .
12. Programmer now ask Quit Bosch Diagnosis?
Choose yes to quit.
Press 2 to choose Start Vehicle then start engine
with start/stop button.
NOTE: If engine fail to start and as soon engine
stops revving (start/stop button has been released),
Fixed Timing function is disabled. To reactivate func-
tion, repeat complete procedure.
Timing Verification
With engine running, check timing.
CAUTION: If engine is to be run more than a few
seconds, engine must be cooled using the flush
kit.
If timing is correct stop engine. This will automat-
ically disable
Fixed Timing function.
If further adjustment is required refer to following
procedure.
Timing Adjustment
Unlike the other models, the ignition timing correc-
tion can be made from 4.5° (advanced) to - 2.25° (re-
tarded).
The MPEM programmer will display correction
numbers from 1 to 8. Unlike other engines, these
numbers do not correspond to the ones punched
on the engine. Refer to the next timing correction
chart.
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