33
ROUTINE SERVICE
COOLING SYSTEM
2
Flushing — Outboard Running
Place outboard in VERTICAL (DOWN) position in
a well ventilated area.
Thread garden hose into flushing port.
Turn water supply on.
Run outboard at IDLE only until full operating tem-
perature is reached.
Leave the outboard in VERTICAL (DOWN) posi-
tion long enough for the powerhead to drain com-
pletely.
Reinstall propeller.
Flushing — Outboard Not Running
Outboard can be in VERTICAL (DOWN) or
TILTED (UP) position.
Thread garden hose into flushing port.
Turn water supply ON.
Flush outboard for at least five minutes.
Turn off water supply and remove garden hose.
Leave the outboard in VERTICAL (DOWN) posi-
tion long enough for the powerhead to drain com-
pletely.
Running the Outboard Using a
Hose and Flushing Adapter
A flushing adapter may be used to provide cooling
water when running the outboard to:
• Flush the engine
• Run for an extended period of time, such as
when performing diagnostic work
• Run the engine on a dynamometer
• Prepare the outboard for storage.
IMPORTANT: The outboard must be located in
a well ventilated area with appropriate ground
drainage.
Keep water inlet pressure between 20 to 40 psi
(140 to 275 kPa).
Be sure water supply is sufficient to run the engine
above idle speed.
Water Supply Requirements
1. GPM: Gallons per minute
2. LPM: Liters per minute
Install flushing adapter onto gearcase water inlet
screens.
WARNING
To prevent injury from contact with rotat-
ing propeller, remove the propeller before
flushing.
004264
WARNING
To prevent injury from contact with rotat-
ing propeller, remove the propeller before
running engine with a flushing adapter.
Model Water Flow @ WOT
115–130 HP 60° V4
11.5 to 13 GPM
1
(43 to 49 LPM
2
)
150–200 HP 60° V6
15 to 20 GPM
1
(56 to 75 LPM
2
)
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