Owner`s manual

3100 OFFSHORE
113
Chapter 14:
SEASONAL MAINTENANCE
14.1 Storage and Lay-up
Before Hauling:
• Pump out the head. Flush the holding tank using clean water and a deodorizer. Pump out the cleaning
solution.
• The fuel tank should be left nearly full to reduce condensation that can accumulate in the fuel tank. Allow
enough room in the tank for the fuel to expand without leaking out the vents. Moisture from condensation
in the fuel tank can reach such concentrations that it becomes heavy enough to settle out of the gasoline
to the bottom of the tank. Since fuel pickup tubes are located near the bottom of the tank, this accumulated
moisture can cause the engine to run poorly or not at all after extended storage.
Algae can grow in the accumulated water in diesel fuel tanks. This condition is most prevalent in warm
climates. Adding a high quality diesel fuel additive containing an algicide may be required to control algae
during storage in your area.
Chemical changes also occur as the gasoline ages that can cause deposits and varnish in the fuel system
as well as reduce the octane rating of the fuel. Severely degraded fuel can damage the engine and boat
fuel tank and lines.
Therefore, if your boat is not being run enough to require at least one full tank of fresh fuel a month or
during winter storage, a fuel stabilizer should be added to the gasoline to help protect the fuel system from
these problems. Operate the boat for at least 15 minutes after adding the stabilizer to allow the treated
fuel to reach the engine.
Your dealer or the engine manufacturer can provide additional information on fuel degradation and fuel
stabilizers recommended for your engine. For more recommendations for your specific area, check with
your local Pursuit dealer.
• Drain water from the fresh water system.
• Consult the engine owner’s manual for detailed information on preparing the engines for storage.