Fuel - Husqvarna W 40P Operator's Manual

4. Stop the engine, and allow it to
cool.
5. Remove the pump drain plug,
and flush the pump with clean,
fresh water. Allow the water to
drain from the pump chamber,
and then reinstall the drain plug.
6. After the pump is clean and dry,
touch up any damaged paint, and
coat areas that may rust with a
light film of oil. Lubricate controls
with a silicone spray lubricant.

Fuel

NOTICE
Depending on the region where you operate your equipment, fuel
formulations may deteriorate and oxidize rapidly. Fuel deterioration and
oxidation can occur in as little as 30 days and may cause damage to the
carburetor and or fuel system. Please check with your local dealer for
local storage requirements.
Gasoline will oxidize and deteriorate in storage. Old gasoline will cause
hard starting, and it leaves gum deposits that clog the fuel system. If the
gasoline in your engine deteriorates during storage, you may need to
have the carburetor and other fuel system components serviced or
replaced.
The length of time that gasoline can be left in your fuel tank and
carburetor without causing function al problems will vary with such
factors as gasoline blend, your storage temperatures, and whether the
fuel tank is partially or completely filled. The air in a partially filled fuel
tank promotes fuel deterioration. Very warm storage temperatures
accelerate fuel deterioration. Fuel deterioration problems may occur
within a few months, or even less if the gasoline was not fresh when you
filled the fuel tank.
You can extend fuel storage life by adding a fuel stabilizer that is
formulated for that purpose, or you can avoid fuel deterioration
problems by draining the fuel tank and carburetor
34
STORAGE
PUMP DRAIN PLUG