Purchasing a used boat can be an exciting and rewarding experience, especially for those looking to enjoy lakes and reservoirs. Whether you’re planning to spend weekends fishing, water skiing, or cruising on a pontoon boat, buying used can be a cost-effective way to get out on the water. However, one of the most important questions prospective buyers often ask is, "How old is too old for a used boat?"
We spoke to a veteran used boat salesperson, and he said a good guide is 15 years. He also suggested buying fuel-injected boats, not carbureted. They are more fuel efficient and easier to fix and work on. That said, freshwater boats, like those used in lakes and reservoirs, can have long lifespans if properly maintained, but age is still a key consideration.
Understanding Boat Longevity
Freshwater boats—like ski boats, fishing boats, and pontoons—are designed to last for years. Many of these boats enjoy a longer lifespan compared to ocean-going vessels, primarily because they are not exposed to the corrosive effects of saltwater. Saltwater can wreak havoc on a boat’s hull, engine, and electrical systems, leading to rapid deterioration. Freshwater, in contrast, is far gentler, so boats used exclusively in lakes or reservoirs can remain in good condition for decades.
However, the longevity of any boat, regardless of where it’s used, depends on three main factors: maintenance, build quality, and storage. Even a boat that’s been used in freshwater can wear down if neglected or subjected to harsh conditions. In general, boats older than 10 years may start to show signs of wear and require more frequent maintenance, such as engine overhauls, hull repairs, or updates to outdated equipment.
Age vs. Condition
While a boat’s age is important, it’s not the only factor to consider. Older boats that have been well-maintained can be just as good—if not better—than newer boats that have been neglected. A 15-year-old pontoon or fishing boat that has received regular care, been stored inside or under cover, and used primarily in calm, freshwater lakes may be in much better condition than a 5-year-old boat that’s been left outside, exposed to the elements, or used in rough conditions.
That’s why it’s essential to consider both the age and condition of a boat when shopping for a used vessel. A professional inspection and attention to key areas can help ensure you’re getting a good deal.
Professional Inspection for Freshwater Boats
Before purchasing any used boat, especially one that’s more than 10 years old, it’s highly recommended to have it inspected by a professional marine surveyor. While boats used in lakes or reservoirs are generally in better condition than those exposed to saltwater, they can still have hidden issues.
A surveyor will assess the hull, engine, electrical systems, and other components, giving you a detailed report on the boat’s condition. This can save you from costly surprises down the line and provide peace of mind that your investment is sound. A professional inspection is will generally cost you between $20-$25 per foot length of the boat. They are especially important for more complex boats with additional systems, like pontoons with sophisticated electrical setups or ski boats with powerful engines designed for towing. Many used boat dealers offer pre-purchase inspections that could also include the trailer, its electrical system, bearings, and tires. This is a viable alternative to a marine survey inspection.
Key Factors to Consider When Buying a Used Freshwater Boat
If you’re planning to inspect the boat yourself, focus on these key areas:
1. Maintenance History
The maintenance history of a boat is one of the most critical pieces of information you can obtain. Regular maintenance ensures that components like the engine, hull, and electrical systems remain in good working order, helping to avoid breakdowns and costly repairs. Ask the seller for service records that document oil changes, engine servicing, and other routine upkeep. It is also important to ask if the boat was professionally winterized (if you are in an area where it freezes).
For boats used on lakes or reservoirs, it’s important to know where the boat was stored. Was it kept in dry storage or left in the water year-round? Dry-stored boats tend to have fewer issues with corrosion or water damage. If dry, was it kept under cover or in an enclosed garage? That is the best. The boat’s usage patterns also matter. Ski boats and fishing boats that see frequent high-speed use may require more engine work than a boat that’s used leisurely.
2. Hull and Deck Inspection
The hull is the backbone of any boat, and any damage to it can lead to serious issues. For freshwater boats, common hull materials include fiberglass and aluminum. Both materials hold up well in lakes and reservoirs, but they’re not immune to wear. When inspecting a fiberglass hull, check for osmosis blisters—small bubbles under the gel coat that can lead to delamination over time. Even in freshwater, these blisters can develop if water seeps into the fiberglass.
For aluminum boats, be on the lookout for pitting or corrosion, especially if the boat was occasionally used in brackish water. Walk around the deck and press down in various spots to ensure there are no soft areas, which could indicate rot or water damage beneath the surface.
3. Engine Condition
The engine is the heart of the boat, and its condition can make or break your boating experience. Most freshwater boats, like fishing boats or pontoons, rely on either inboard or outboard motors. For used boats, engine hours (akin to miles on a car) can provide a rough estimate of how much wear the engine has seen. You will want to look for less than 400 hours in the southern United States. However, maintenance is just as important as engine hours. A well-maintained engine with higher hours may be in better condition than one with low hours that was neglected.
Perform a sea trial to see how the engine performs under different conditions. Does it start smoothly? Are there any unusual noises or excessive smoke? These could be warning signs of internal engine issues.
4. Electrical Systems
In lake boats, the electrical systems are less likely to suffer from corrosion compared to saltwater vessels, but they still require close inspection. Faulty wiring can lead to significant safety hazards. Check all connections for signs of wear or corrosion, especially in older boats. Ensure that lights, bilge pumps, and other electrical systems are functioning correctly.
5. Safety Equipment
Safety is paramount, so inspect the boat’s life jackets, fire extinguishers, and signaling devices to ensure they are in good condition and up to date. The presence of these items is not just about compliance with regulations but also about peace of mind when you’re out on the water.
6. Trailer Condition
Most boats come with trailers, making it easy to transport them to and from the lake. Don’t overlook the trailer during your inspection. Check for rust, especially around the frame, as this could indicate structural weakness. Ensure the tires are in good condition and that the lights and brakes function properly. A faulty trailer can lead to dangerous situations on the road, so it’s just as important as the boat itself.
7. Sea Trial
The final test of any boat’s condition is a sea trial. It’s not really in the sea, that is just the industry term for a boat test drive. Taking the boat out on the water allows you to assess how it handles, how the engine performs, and whether all systems work as they should. Pay attention to the boat’s steering, acceleration, and braking performance. If you plan to use the boat for specific activities, like fishing or water skiing, test how well it performs under those conditions.
Conclusion
When it comes to buying a used lake boat, age is just one piece of the puzzle. A well-maintained older boat can often be a better investment than a neglected newer one. By focusing on factors like the boat’s maintenance history, hull condition, engine health, and electrical systems, you can make a smart choice that will provide years of enjoyment on the water. Whether you’re looking for a sturdy fishing boat or a comfortable pontoon, following these guidelines will help ensure you find a vessel that’s ready for your next adventure.
For a visual guide on common mistakes to avoid when buying a used boat, you might find the following video helpful: https://youtu.be/kVA7zFClAJo
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