• Do a general cleaning of hull, deck and topsides using a mild detergent
• Make sure drains and scuppers are clear
• Put on a good coat of wax
• Clean and polish metal with a good metal polish
• Clean teak and oil
• Clean windows and hatches
• Clean canvas, bimini and dodger
• Clean interior including bilges
• Check spare parts and tools and replace as necessary
• Make sure registration is current and onboard
• Check and replace wiper blades if necessary

HULL

• Check for hull abrasions, scratches, gouges, etc. and repair
• Check and replace zincs
• Check for blisters and refinish is necessary
• Check rub rails
• Check swim platform and/or ladder
• Inspect and test trim tabs
• Check shaft, cutlass bearing, strut and prop
• Check rudder and fittings
• Touch up or replace antifouling paint

DECK, FITTINGS, SAFETY EQUIPMENT:

• Check stanchion, pulpits and lifelines for integrity
• Check ground tackle, lines, fenders, etc.
• Check chainplates and cleats
• Check hull/deck joint
• Check deck, windows, and port lights for leaks
• Inspect anchor windlass and lubricate
• Clean and grease winches
• Check and lubricate blocks, pad eyes, etc.
• Check dinghy, and life raft

BELOW DECKS:

• Check, test and lubricate seacocks
• Check condition of hoses and clamps
• Make sure below waterline hoses are double clamped
• Check bilges pumps for automatic and manual operation
• Check for oil in bilges
• Check limber holes and make sure they are clear of debris

ELECTRICAL SYSTEM AND COMPONENTS:

• Check battery water level
• Check/recharge batteries
• Check terminals for corrosion, clean and lubricate
• Check bonding system
• Inspect all wiring for wear and chafe
• Test all gauges for operability
• Check shore power and charger
• Check for spare fuses
• Check all lighting fixtures (including navigation lights) and make sure you have spare bulbs
• Check all electronics for proper operation
• Inspect antennas

REQUIRED AND RECOMMENDED EQUIPMENT:

• Sound signaling device
• Check distress signals and expiration date
• Check Pfds
• Inspect life rings and cushions
• Check fire extinguishers and recharge if necessary
• Check and adjust compass
• Check navigation lights
• Check charts and replace as necessary
• Check radar reflector
• Check and replace first aid supplies
• Check bailer and hand pump

INBOARD ENGINE(S):

• Change oil & filters - have spare onboard
• Check and change fuel filters - have spares onboard
• Check and change engine zincs
• Check cooling system change coolant as necessary - have extra onboard
• Record engine maintenance log, especially date & hours of last oil changes
• Check belts for tension
• Check transmission fluid
• Check and clean backfire flame arrestor
• Check impeller
• Check and clean water strainer
• Check bilge blower

HEAD SYSTEM:

• Checked for smooth operation - lubricate and clean as necessary
• If equipped with treatment system, have chemicals on hand
• Y-valve operation checked, valve labeled & secured

WATER SYSTEM:

• Flush water tank
• Check water system and pump for leaks and proper operation
• Check hot water tank working on both AC and engines
• Check for tank cap keys on board
• Check and clean shower sump pump screens

GALLEY:

• Fill propane tank, check electric & manual valves, check storage box vent to make sure it is clear
• Check refrigerator, clean and freshen, operate on AC and DC
• Clean stove, check that all burners and oven are working
• Check microwave, if fitted

OUTBOARD MOTOR:

• Replace spark plugs
• Check plug wires for wear
• Check prop for nicks and bends
• Change/fill gear lube
• Inspect fuel lines, primer bulb and tank for leaks
• Lubricate and spray moveable parts

TRAILER:

• Check for current registration
• Check rollers and pads
• Check and lubricate wheel bearings
• Clean and lubricate winch
• Lubricate tongue jack and wheel
• Test lights and electrical connections
• Check tire pressure and condition
• Check brakes (if equipped)
• Check safety chains
• Check tongue lock

It's been suggested that we add three more items to the spring checklist. They are as follows:

1. Lubricate stuffing boxes, shaft and rudder logs
2. Empty water separator filters
3. Shock the drinking water tank. Mike suggests pool shock not bleach. Pool shock breaks down in a few days and then can be flushed out.