Checking Water In Engine Oil Tank; Inspecting Wiring And Connectors; Checking Propeller - Yamaha 115C Owner's Manual

Maintenance
parts while the engine is running.
ECM00490
NOTICE
This procedure must be performed while
the outboard motor is in the water. A
flushing attachment or test tank can be
used.
If the boat is not equipped with a tachometer
for the outboard motor, use a diagnostic ta-
chometer for this procedure. Results may
vary depending on whether testing is con-
ducted with the flushing attachment, in a test
tank, or with the outboard motor in the water.
1. Start the engine and allow it to warm up
fully in neutral until it is running smooth-
ly.
2. Once the engine has warmed up, verify
whether the idle speed is set to specifi-
cation. For idle speed specifications,
see page 9. If you have difficulty verify-
ing the idle speed, or the idle speed re-
quires adjustment, consult a Yamaha
dealer or other qualified mechanic.
EMU29050

Checking water in engine oil tank

Oil injection models
There is a water trap at the bottom of the en-
gine oil tank. If water or foreign matter is vis-
ible in this trap, consult your Yamaha dealer.
1. Water trap
56
2
1
ZMU01895
2. Engine oil tank
EMU29114

Inspecting wiring and connectors

Inspect that each connector is engaged
G
securely.
Inspect that each ground lead is properly
G
secured.
EMU32112

Checking propeller

EWM01881
WARNING
You could be seriously injured if the en-
gine accidentally starts when you are
near the propeller. Before inspecting, re-
moving, or installing the propeller, place
the shift control in neutral, turn the main
switch to " " (off) and remove the key,
and remove the clip from the engine shut-
off switch. Turn off the battery cut-off
switch if your boat has one.
Do not use your hand to hold the propeller
when loosening or tightening the propeller
nut. Put a wood block between the anti-cavi-
tation plate and the propeller to prevent the
propeller from turning.
ZMU03915