79
System Analysis
Dynamic Tests
5
Dynamic Tests
Cylinder Drop Tests
Use the
Evinrude Diagnostics
software
Dynamic
Tests
to momentarily disable one cylinder while
the outboard is running.
•
The Dynamic Ignition test disables the ignition
and fuel injection circuits to a cylinder.
•
The Dynamic Fuel test momentarily disables
one fuel injector circuit.
By dropping one cylinder, RPM and running qual-
ity changes can be compared for each cylinder.
IMPORTANT:
Test the outboard at the RPM
where the problem is occurring. Use the test pro-
cedures to identify inconsistencies in voltages and
cylinder performance. Once a circuit has been
identified as malfunctioning, inspect all related wir-
ing and connections. Check all voltage inputs and
grounds; and perform resistance tests for all cir-
cuits before replacing any suspect components.
Dynamic Tests
can be used with:
•
A timing light to determine how other cylinders
are affected by one cylinder being “dropped”; or
•
A digital multimeter to check voltage changes
on electrical circuits.
IMPORTANT:
DO NOT misinterpret tests run at
IDLE. The idle speed controller in the
EMM
com-
pensates to maintain a constant IDLE speed. The
Dynamic Tests
screen includes a function to tem-
porarily disable the idle controller.
Fuel Control Adjustment
Use this test is to help identify a cylinder that may
be too rich or too lean. This feature should not be
used by itself to identify a faulty injector.
Evinrude Diagnostics
software allows temporary
adjustments to the fuel flow characteristics of the
injectors. Factory fuel flow settings are restored
when power to the
EMM
is returned to OFF.
Test the outboard at the RPM where the problem
is occurring.
If the outboard run quality improves with a fuel
control adjustment, eliminate other possibilities
before replacing an injector:
•
•
Refer to
IMPORTANT:
DO NOT misinterpret tests run at
IDLE. The idle speed controller in the
EMM
com-
pensates to maintain a constant IDLE speed.
Inductive Amp Meter Test
Use an inductive amp meter to monitor battery
charging and current flow. Identifying erratic
amperage in a circuit can be used to isolate a
problem component.
Dynamic Tests Screen
008570L
008575
Summary of Contents for EVINRUDE E-TEC BE225HGXABA
Page 163: ...Oiling System Oil Supply Diagrams 163 8 008208R Port Side View Starboard Side View ...
Page 165: ...Oiling System Oil Supply Diagrams 165 8 008432R Port Side View Starboard Side View ...
Page 167: ...Oiling System Oil Recirculation Diagrams 167 8 008207R Starboard View Port View ...
Page 251: ...Powerhead Powerhead Views 251 11 Powerhead Views Port Hose Routings 3 3 L models 007153 ...
Page 252: ...252 Powerhead Powerhead Views Starboard Hose Routings 3 3 L models 007154 ...
Page 253: ...Powerhead Powerhead Views 253 11 Port Hose Routings 3 4 L models 008503 ...
Page 254: ...254 Powerhead Powerhead Views Starboard Hose Routings 3 4 L models 008502 ...
Page 255: ...Powerhead Powerhead Views 255 11 Port 3 3 L models 008448 ...
Page 256: ...256 Powerhead Powerhead Views Starboard 3 3 L models 008449 ...
Page 257: ...Powerhead Powerhead Views 257 11 Port 3 4 L models 008441 ...
Page 258: ...258 Powerhead Powerhead Views Starboard 3 4 L models 008442 ...
Page 259: ...Powerhead Powerhead Views 259 11 Front 3 3 L models 008450 ...
Page 260: ...260 Powerhead Powerhead Views Front 3 4 L models 008439 ...
Page 261: ...Powerhead Powerhead Views 261 11 Rear 3 3 L models 007142 ...
Page 262: ...262 Powerhead Powerhead Views Rear 3 4 L models 008440 ...
Page 263: ...Powerhead Powerhead Views 263 11 Top 008438 ...
Page 264: ...264 Powerhead Powerhead Views Starboard ICON models 008504 ...
Page 269: ...Midsection Service Charts 269 12 Muffler 004117R ...
Page 320: ...S 322 ...