Sea-doo 2003 GTI LE RFI, Shop Manual

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Section 12 ELECTRICAL SYSTEM
Subsection 02 (IGNITION SYSTEM (CARBURETED ENGINES))
12-02-8
SMR2003-035_12_02A.FM
IMPORTANT: When using the software B.U.D.S.,
ensure that the protocol matching the connection
used is properly selected in “
MPI “ under
“ Choose protocol ” as per the following chart.
MPEM Programmer
As an alternate method to correct the ignition tim-
ing, the data of the MPEM can be changed using
the MPEM programmer (P/N 529 035 878).
NOTE: For more information on the MPEM pro-
grammer, refer to the MPEM programmer guide
(P/N 219 700 138).
Refer to the timing correction charts, used per
MPEM Programmer , to find the number corre-
sponding to the timing correction needed.
The Fixed Timing function must be activated first.
This function allows to check ignition timing at any
RPM because it locks ignition timing at 12 degrees
BTDC .
NOTE: Fixed Timing function must be activated
before starting engine when using the MPEM pro-
grammer.
Fixed Timing Function
1. Connect the communication cable to the MPEM
programmer and the other end to the safety lan-
yard 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 = 12.00 deg .
9. Press any key to continue. Programmer will go
back one level to Adjustment .
10. Press Menu to go back one level to Diagnosis .
11. Press Menu to go back one level to Bosch sys-
tem .
12. Programmer now ask Quit Bosch Diagnosis?
Choose yes to quit.
Press 2 to choose Start Vehicle, the program-
mer will then ask Modify Max RPM , press menu
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
function, 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).
VCK (Vehicle Communication Kit)
The VCK will display directly the timing correction
under “Offset angle”. See illustration below.
1. “Setting” tab
2. Ignition offset section
3. “Locked” box
4. Current angle in MPEM
5. Arrows to change the angle
MPEM Programmer
The MPEM programmer will display correction
numbers from 1 to 8. Refer to the next timing cor-
rection chart.
TYPE OF
CONNECTION
ADAPTER
TO USE
PROTOCOL
TO CHOOSE
RFI models through
the 4-pin connector
6-pin and
RFI 4-pin
DESS
F17H08A
1
2
3
4 5
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