Running Ignition Tests - BRP E250DHLSCS Service Manual

SYSTEM ANALYSIS
IGNITION OUTPUT TESTS
Results:
No spark on one or more cylinders:
Inspect or replace spark plugs
•
Repeat static test on primary circuit.
•
Connect timing light pickup to the primary circuit
of the cylinder being tested. Activate test and
observe timing light strobe for consistent flash.
2
1. Timing light pick-up
2. Ignition coil primary wire
No spark control on one or more cylinders:
Refer to Ignition Primary Circuit Resistance
•
Test on p. 119
Refer to Ignition Coil Tests on p. 119.
•
Steady spark on all cylinders:
Refer to Running Ignition Tests on p. 118 and
•
DYNAMIC TESTS on p. 112.

Running Ignition Tests

Use Evinrude Diagnostics software to monitor
system voltage (55 V) and ignition voltage
(200 V).
Voltage readings at a specific speed (RPM)
•
should be steady.
Refer to System Voltage Test on p. 116.
•
Refer to Ignition Voltage Test on p. 117.
•
Use an inductive timing light to monitor the spark
signal through each of the secondary circuit
(spark plug lead) wires.
Start outboard and observe timing light strobe.
Look for a consistent flash and only one flash per
revolution. The strobe of the timing light should be
the same for each cylinder.
118
IMPORTANT:
from secondary circuit appears faulty.
2
1
1. Timing light pick-up
2. Spark plug lead
Results:
Steady voltage and strobe, engine misfires:
Inspect or replace spark plugs
•
004327
Refer to FUEL DELIVERY TESTS on p. 120.
•
Check for internal engine damage.
•
Steady voltage, erratic strobe, engine misfires:
Inspect or replace spark plugs
•
Check CPS air gap and resistance.
•
Refer to Ignition Primary Circuit Resistance
•
Test on p. 119.
Refer to Ignition Coil Tests on p. 119.
•
Voltages fluctuate, engine misfires:
Inspect battery and connections
•
Test capacitor and all ground connections.
•
Refer to System Voltage Test on p. 116
•
Refer to Ignition Voltage Test on p. 117
•
Refer to Ignition Primary Circuit Resistance
•
Test on p. 119.
Refer to Ignition Coil Tests on p. 119.
•
IMPORTANT:
about 1200 RPM, the outboard may be in S.A.F.E.
Refer to S.A.F.E. WARNING SYSTEM on p. 100.
Test on primary circuit if strobe
If a running problem occurs at
1
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