COLD WEATHER OR EXTENDED STORAGE
111
Power Package Lay‑up
In addition to the procedures listed in the Maintenance Chart of
this manual, perform the following procedures whenever the power
package will not be used for any extended period of time. Remove
the boat from the water to complete the tasks. Consult your
authorized Mercury Marine dealer.
NOTE: Mercury Marine recommends that the power package
lay‑up be performed by an authorized Mercury Marine dealer.
Flushing the cooling system and preparing the fuel system for
extended storage can be done at the same time. Perform all annual
inspections, lubrication, and fluid changes as outlined in the
Maintenance Charts of this manual.
NOTICE
Without sufficient cooling water, the engine, the water pump, and
other components will overheat and suffer damage. Provide a
sufficient supply of water to the water inlets during operation.
1. With the boat out of the water, place the drive unit in its full
down position.
2. Remove the propeller to avoid injury while performing the
following procedures.
3. Attach a water hose to the boat's external water pickup.
Supply water to the engine block during operation.
4. Prepare the fuel system for extended storage by mixing the
following in a 23 liter (6 U.S. gal) remote outboard fuel tank:
• 19 liter (5 U.S. gal) premium unleaded 91 octane (R+M)/2
(98 RON) gasoline.
• 1.89 liter (64 fl oz) Premium Plus 2‑cycle TC‑W3 outboard
oil.
• 150 ml (5 fl oz) Fuel System Treatment and Stabilizer or
30 ml (1 fl oz) Fuel System Treatment and Stabilizer
Concentrate.
5. Close the fuel shut off valve if equipped.
6. Disconnect the boat's fuel line from the mechanical fuel pump
inlet.
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