Nautique Crossover 90490 - Manual (Page 181)

Storage
10-5
Check for Water in Your Fuel
System
A small amount of water left in the fuel system for several months
can result in damage to the fuel system and engine. If you are
storing your boat for the winter, it is a good practice to remove any
water in the fuel system.
The fuel control cell can be drained by removing the drain plug at
the bottom of the canister.
1. Loosen the return fuel hose to provide an incoming air source.
2. Clamp the return fuel line some way to minimize the amount
of fuel that may drain.
3. Once the canister is drained, coat the threads of the drain plug
with a fuel resistant pipe thread sealer, then replace and tighten
the plug.
4. Reconnect the fuel hose, and tighten the hose clamp. The
threads must be sealed properly to avoid a possible fuel leak.
Check your fuel control cell once each year for signs of water in the
canister. If it appears there is water buildup in the canister, see your
Nautique dealer for service.
An empty fuel tank can accumulate water inside by changing
temperature and repeated cycles of condensation on the inner
surfaces of the tank. If the fuel tank is kept at about 3/4 full during
storage, less water can condense, limiting the buildup of water in
the fuel tank.
Fill the tank to 3/4 full maximum during storage to eliminate the
possibility of fuel expansion problems caused by temperature
changes. This minimizes overflow of fuel from the fuel vent. Not
only can this overflow be hazardous, but it will also adversely affect
decals and pin striping on the boat.
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