BRP EVINRUDE E-TEC BE225HGXABA, Manual

Page: 100 / 356

Electrical and Ignition
Charging System Tests
100
Snap-On model MT540D are examples of testers
available.
Start and run the outboard at approximately 3500
RPM. Use the variable load tester to draw the bat-
tery down at a rate equivalent to the stator’s full
output.
•
The ammeter should indicate nearly full output,
approximately 50 A (or 25 A for each output)
between 2000 and 4000 RPM.
•
Above 4000 RPM, charging output is reduced to
40 A.
Decrease the battery load toward 0 A.
•
Ammeter should show a reduced output. As the
current draw decreases, the battery voltage
should stabilize at approximately 14.5 V.
•
If results vary, check stator BEFORE replacing
the
EMM . See Stator Tests on p. 98.
Auxiliary Battery Charge Wire
The auxiliary battery charge feature requires aux-
iliary battery charge kit, P/N 5006253 (or equiva-
lent).
IMPORTANT:
Disconnect all accessories from
the auxiliary battery. Auxiliary battery must read a
minimum of 8.5 V at the beginning of these tests
and remain connected to the outboard during the
tests.
Check battery ground cable for continuity.
With the key switch OFF, check battery voltage at
auxiliary battery, then check voltage at auxiliary
battery connection. If the readings are not the
same, replace wire to auxiliary battery. The auxil-
iary battery wire must be at least 10-gauge and it
must be protected by a 50 A fuse or circuit
breaker at the battery.
With outboard running at 1000 RPM, voltage must
read higher than with key OFF and increase
steadily to approximately 14.5 V as the outboard
RPM increases.
If there is no increase, turn the key switch to OFF
and test red/black wire between the
EMM and
auxiliary battery connection.
•
Continuity indicates faulty output from EMM .
Check 12 V alternator output before replacing
EMM for faulty auxiliary battery, charge isolator
circuit.
•
No continuity indicates faulty wiring.
Variable Load Test Diagram
1. Red wires (alternator output from EMM )
2. Starter solenoid
3. Battery cable terminal (B+)
4. Variable load tester
5. Ammeter
002077
Battery Charging Graph 004286
3
4
1
2
5
1. Auxiliary battery charge wire connection 004329
1