Grady-White Boats Canyon 456, Manual, Page: 59 / 90

7-3
Chapter 7: Winterization
Batteries
Fully charge the batteries before storing. A weak battery loses its charge more rapidly than a
strong battery. Coat the battery terminals with grease or an anti-corrosion product.
Engines
See your engine Operator’s Manual regarding the winterizing procedures. Follow instructions
carefully, and your engine will withstand severe weather conditions. Change all filters. Check hoses
and clamps. If you have developed any vibrations during the season, look for loose engine bolts,
bent shafts or bent propellers.
Engine Flushing System
The Canyon 456 is equipped with a Reverso Engine Flushing System. To properly winterize this
system, antifreeze must be pumped through for 8 minutes.
Fuel System
The fuel systems should be winterized by following the fuel system maintenance and fuel tank
compartment instructions in the maintenance and service section. Tanks should be kept filled when
the boat is not in use to reduce the accumulation of moisture and condensation. Add stabilizer to
fuel that won’t be used in 60-90 days. Use fuel stabilizer specifically designed for alcohol blended
fuel if using E10 gasoline.
Storage Checklist
In addition to winterization guidelines the following checklist can be used as a guide for storing
your boat. Additional details should be added as needed for your personal application.
• Remove all loose items and personal effects.
• Your compass should be covered for the winter. Ultraviolet rays from the sun will cloud
the compass and make it difficult to read.
• Winterize all equipment as directed in the manufacturer’s manuals.
• Store cushions indoors to prevent mildew.
• Clean the exterior and interior of the boat. Remove all grease, oil, salt spray, etc.
• Remove garbage. Clean storage areas, fish boxes, and livewells.
• Lubricate hinges, valves, drawer slides, and other surfaces that will rust.
• Check underwater items. Hardware should be in good condition and tight.
• Inspect electrical systems and have any repairs performed.