24
Routine Service
Maintenance
A serviceable oil filter is located in the oil supply
line between the on-engine oil tank and rear oil
pump.
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 exhaust
adapter.
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.
If the exhaust pressure readings are not as
described, clean or replace exhaust pressure fit-
tings.
1. Inline oil filter
009238
1. Exhaust pressure fitting
009239
Engine Monitor Screen
1. Barometric and Exhaust pressure readings
009242
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