Section 05
ENGINE MANAGEMENT (DI)
Subsection 03
(COMPONENT INSPECTION AND ADJUSTMENT)
SMR2000-051-05-03A.FM
05-03-31
CAUTION:
If engine is to be run more than a
few seconds, engine must be cooled using the
flush kit.
NOTE:
If mark on PTO flywheel is perfectly align-
ed with timing mark pointer, no adjustment is re-
quired. If mark does not align with pointer, recheck
PTO flywheel mark before performing the TDC
setting to ensure PTO flywheel has not loosen or
tightened.
TDC Setting
General
To correct the TDC setting, the data of the MPEM
is changed using the VCK (Vehicle Communication
Kit) (P/N 295 035 676). Look in
Setting
section of
the software B.U.D.S.
NOTE:
For more information on the VCK, refer to
its online help. The MPEM programmer will not
work to perform this operation on the
DI engines
.
CAUTION:
If the TDC setting is adjusted too ad-
vanced, this will cause serious damage to the
engine.
Adjustment
In this operation, the ignition timing light and
B.U.D.S. are used to synchronize the MPEM TDC
reference with the engine crankshaft. This timing
adjustment will affect the timing of ignition as well
as direct injector timings. The aim of the adjust-
ment is to align the mark on the flywheel with the
pointer at idle using the timing light and B.U.D.S.
When this is achieved, then the MPEM TDC refer-
ence is synchronized with the engine crankshaft.
1. “Setting” tab
2. Ignition offset section
3. “Locked” box
4. Current angle in MPEM
5. Arrows to change the angle
1. Choose the
Setting
tab and look under
Ignition
Offset
.
2. Check the
Locked
box to “freeze” the timing at
the correct value.
3. The VCK displays the number that is stored in
the MPEM.
4. Now click the up or down arrow to change the
number of the current angle so that the TDC
setting marks align when checking with the tim-
ing light. Each step makes an adjustment of 1/4
degree.
NOTE:
Each time the setting is changed on the
screen, the new value is also changed in the
MPEM, so there may be a slow response, do not
make changes too quickly.
5. When marks align, uncheck the
Locked
box to
finish.
NOTE:
This will write the new value immediately
to the MPEM. There is no need to write the doc-
ument to the MPEM for the TDC setting unless
other changes were made. However, we recom-
mend to reset the service hours when you per-
form a service action such as the TDC setting.
NOTE:
The MPEM features a permanent (non-
volatile) memory and keeps the TDC setting pro-
grammed even when the watercraft battery is dis-
connected.
Engine Start/Stop Switch Verification
A quick operation test can be done using the vehi-
cle communication kit (VCK) with the B.U.D.S. soft-
ware, using the
Monitoring
section. Press the start
button and look at the Start button LED. It should
turn on, indicating the starting system is working
on the input side (start button, MPEM and wiring).
You know now the problem is on the output side
(MPEM output signal to starting solenoid, wiring
harness going to the solenoid, starter motor. Refer
to STARTING SYSTEM for testing procedures).
Otherwise, check the input side as follows.
Disconnect the YELLOW/RED wire of the start/
stop switch. Using an ohmmeter, connect test
probes to YELLOW/RED wire and to ground.
Measure resistance, it must be an open circuit
(switch is normally open). Depress and hold switch,
the ohmmeter should read close to 0 ohm. Other-
wise, replace switch.
If the switch tests good, check continuity of cir-
cuits 2-8 and 2-11 using a multimeter.
1
F12R0WA
4
5
2
3
www.SeaDooManuals.net
Summary of Contents for 2001 RX
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