BRP EVINRUDE E-TEC BE225HGXABA, Manual

Page: 43 / 356

43
Routine Service
Exhaust Pressure Fitting
2
Air Silencer
The air silencer on Evinrude outboards maximizes
air flow while minimizing noise.
Routine cleaning of the air silencer is recom-
mended to remove any accumulation of debris.
Hoses and Connections
Check condition of all hoses and connections in
both the fuel and oil systems:
•
Visually inspect all components.
•
Observe all clamps, hoses, and connections
while outboard is running.
•
Replace all damaged components.
•
Repair all leaks.
Exhaust Pressure Fitting
The exhaust pressure fitting is threaded into the
adapter housing and protrudes into the inner
exhaust.
A hose is routed from this fitting to the EMM . Due
to carbon accumulation in the exhaust, this fitting
must be periodically de-carbonized or replaced.
Operation Test
Use the Evinrude Diagnostics software Monitor
screen to confirm:
•
barometric pressure reading; and
•
changes in exhaust pressure reading.
With key ON, outboard NOT running, make sure
the barometric pressure reading reflects actual
atmospheric conditions.
If barometric pressure reading is inaccurate,
remove exhaust/barometric pressure hose from
EMM . Retest and observe engine Monitor screen.
If barometric pressure reading is accurate with
hose removed, replace hose and diaphragm
assembly. and inspect exhaust fitting for restric-
tion.
With key ON, outboard NOT running, the exhaust
pressure sensor reading should be close to zero.
With the outboard running, make sure the exhaust
pressure reading changes with throttle setting.
This reading will vary, based on actual outboard
exhaust pressure conditions.
004218

WARNING
Failure to check for fuel leakage could allow a
leak to go undetected, resulting in fire or
explosion.
1. Exhaust pressure fitting 005026
1