Putting a motorboat back in the water is no easy task. A rigorous check of every system will enable you to sail serenely and avoid unpleasant surprises. Take the time to do things in the right order, because the sea doesn't do you any favors.
The engine, the heart of the boat
The first thing to consider when de-wintering your boat is the engine. Check the level and condition of the engine oil and coolant (for inboard engines). An oil change is often recommended before restarting. Also inspect the anode, propeller, clamps and hoses. Any trace of corrosion or rust should raise a red flag.
Also check that the water pump is working properly. If it hasn't been replaced recently, now might be a good time. If possible, test the start-up dry, out of the water, using a suitable cooling system, to avoid any unpleasant surprises on the big day.
The fuel system, tracking down water and impurities
During wintering, fuel can become contaminated with water or impurities, especially diesel fuel. It is therefore essential to drain the decanters, clean the filters and, if necessary, replace them. A porous or cracked hose can cause a breakdown, or even a dangerous leak.
The battery, to avoid running out of electricity
A discharged or poorly maintained battery can leave you stranded on the pontoon before you even set sail. Fully recharge it before launching, test its voltage and check the condition of the terminals. If the battery shows signs of weakness (voltage below 12.4 V after charging), it's best to replace it. Cleaning the terminals and applying an anti-corrosion product will extend its life.
Hull and appendages: an essential visual inspection
A thorough inspection of the hull is essential to detect any cracks, osmosis blisters or scaled areas. Take the opportunity to clean the hull with clear water and apply a new coat of antifouling if necessary. Also check the condition of the propeller, rudder and flaps. Any damaged or bent parts should be replaced.
Electrical system and on-board electronics
Before setting sail, make sure all electrical equipment is working: navigation lights, VHF, GPS, depth sounder... Inspect cables, fuses and connections. Test each device and, if necessary, resynchronize or update electronic systems.
Safety equipment: a legal obligation
Thoroughly check your safety equipment . Check the expiration dates of flares, fire extinguishers and automatic vests. Count the number of vests, check the lighting devices, the locating devices and the first-aid kit. Make sure that the number of fire extinguishers is in line with your boating category. A cross-check with the official government list is always useful.
Tauds and other canvases
Some boats have an awning or bimini. Check all fastenings, fabric and seams. Clean awnings, grease hinges or slides, and make sure they fold properly. A loose bimini can quickly become a sailing hazard.
Comfort and mooring equipment
Bilge pumps, toilets, fresh water system, refrigerator, cockpit table, electric windlass... Everything must be tested before launching. An out-of-service bilge pump can be dramatic in the event of water ingress. Also check the mooring lines, fenders, chain and anchor, which are all safety accessories.
Toolbox and spare parts
Always useful, don't forget to take on board a small repair kit with basic tools, a set of fuses, spare bulbs, adhesive tape, a few clamps and hoses, and a can of engine oil. This can save the day in the event of a minor problem.
Documentation and ship's papers
Last but not least, a point often overlooked: your papers. Check that your driver's license, insurance, registration certificate (or "acte de francisation") and annual vignette (for river boats) are up to date. Having a digital copy in your phone can come in handy in the event of an inspection.
