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Japanese manufacturer Yamaha has entered a wide range of different segments over the decades. Some have yielded better results than others -– its long-running lineup of motorcycles is well regarded for its reliability , but other projects such as its F1-inspired supercar failed to ever make it to production. One of its most famous success stories is its range of marine engines, which the brand has been producing in various forms since the '60s.
Its lineup stretches from modest engines that make only a few horsepower all the way up to V8 monsters that push more than 400 horsepower. The latter end of the spectrum has been subject to significant expansion in recent years, with Yamaha now offering boat owners looking for high-end engines a wider choice than ever. That means many of its most powerful marine engines to date are offered in its current lineup, although there are a few classics that also still remain high up the rankings.
SlashGear has rounded up a selection of ten top performers from past and present, many of which offer improved efficiency and convenience as well as impressive levels of power.
Yamaha currently offers a range of 2.8L inline-4 engines, with its most powerful being the F200. It's designed with both versatility and efficiency in mind, being compatible with both digital and mechanical controls and running on 89 octane fuel. Yamaha has offered a 200 horsepower engine for many years now, but the latest iteration boasts an improved engine design with variable camshaft timing to reduce fuel consumption without reducing performance.
There is a long list of factors to consider when shopping for a marine engine, and running cost is one of the most important factors. The engine's reduced fuel usage combined with Yamaha's reputation for overall reliability means the engine scores well here. Another plus point is the F200's convenience for existing Yamaha marine engine owners -– the brand kept the mount points for the latest engine the same as older models, making it easier to fit as an upgrade.
The next step up in power in Yamaha's current lineup adds an extra pair of cylinders and an additional 25 horsepower. The F225 is a 4.2L V6 engine and is the least powerful variant in the brand's V6-powered range as of this writing. Alongside running costs as previously mentioned, another important factor to consider when looking for a marine engine is reliability. It's not an exact science –- look hard enough and you'll almost always be able to find a horror story online about any given engine –- but some engines are generally considered to be safer bets than others.
The F225 should be a safer bet, and with the ability to run on 89 octane fuel, it should be an economical one too. However, unlike the brand's F200 four-cylinder, the F225 isn't compatible with digital controls. In contrast, both of the more powerful engines in the current V6 range, the F250 and F300, are operable with both digital and mechanical controls.
Positioned as something of the middle child in Yamaha's current lineup of V6 engines, the F250 offers extra power and extra versatility over the F225. Most of the engine's internals remain the same, including the multi-point fuel injection system and variable camshaft timing that's shared with other, less potent Yamaha engines featured earlier on this list. The F250 is also Yamaha's lowest powered variant in the V6 range to offer digital steering compatibility.
Exactly how the added power translates into real-world performance will vary between boats, but to squeeze maximum speed out of the engine, Yamaha recommends pairing it with a Saltwater Series II HP propeller. In certain situations, the brand claims the propeller can increase top speed by up to two mph. Boat owners looking for further performance upgrades will need to look even further up the brand's engine lineup, although that comes at a significant added cost.
While Yamaha's current engines might be more efficient than the brand's older models, they're not necessarily more powerful. The Z300 is a prime example of that. It was launched in 2003 and remains one of the brand's most powerful engines to date. The 3.3L two-stroke V6 engine was designed to be the most efficient engine of its kind at its launch, being the first 300 horsepower engine in the industry designed to meet the EPA's upcoming at the time 2006 emissions standards.
Those improvements in efficiency were partly down to the brand's High Pressure Direct Injection technology, with the Z300 being the most powerful Yamaha engine to feature the system. Another uncommon feature was the Yamaha Diagnostic System, which allowed for computer-based diagnostics to be carried out. It performed the same kind of role as the OBD-II system that had been required on cars since the '90s, but at the time of the Z300's launch, it was still unusual to see the technology available for a marine engine.
The most powerful engine in Yamaha's current 4.2L V6 engine lineup is the F300, which follows the brand's handy naming conventions and churns out 300 horsepower. It offers the same benefits as less powerful variants, boasting impressive efficiency and extra features compared to older models. It's also highly reliable according to Yamaha's warranty data, with 96% of all engines remaining in service throughout their whole warranty period without a claim.
Not only should it be reliable over the long run, it should also stay looking modern too thanks to its redesigned cowling. Styling is far from the most important factor to consider when looking for a marine engine, but most boat owners will at least want an engine that doesn't detract from the styling of their boat. The F300 looks good across a range of applications, and thanks to the prominent 300 badging, its status as a high-end V6 engine is clear for all to see.
While the F300 is one of the most powerful V6 marine engines that Yamaha offers, as of the beginning of 2024, it's no longer the most powerful of all. That honor instead goes to the F350, which features a larger 4.3L displacement to help churn out its superior power. It also borrows design elements from the brand's V8 engines, including the valve lifter, throttle valve, and camshaft. The added power necessitates an improved cooling system, and as a result the F350 also boasts a heavier duty cooling fan than lesser V6 variants.
The extra horses don't result in a significant weight gain, however, as the F350 weighs 629 pounds. Few, if any, other engines in the segment deliver that kind of power to weight ratio. In styling terms, the F350 is similar to the less powerful V6 engines found elsewhere in Yamaha's range, but the 350 badging on the cowling ensures that none of your fellow boat enthusiasts will confuse the F350 for anything less than a range-topper.
The 375 horsepower engine is still a new addition to the Yamaha lineup, with the brand only offering it for the first time in 2018. It's since been joined by a trio of even more powerful Yamaha engines, making it the entry level option for buyers to the V8 range. Entry level is a relative term here, however. The XTO F375 is still an impressive piece of kit, being the first engine of its kind to feature built-in electronic steering and the first Yamaha four-stroke engine with direct injection.
For the majority of boat owners, an engine like this will be overkill. It's designed squarely at owners with large boats who can justify a higher initial outlay in return for added performance and the dependability that Yamaha is known for. It makes use of the latest and greatest innovations that the brand has to offer, both in terms of design and in terms of the material used in its construction.
Launched in 2023, the XTO F400 is one of the latest additions to Yamaha's range. It's the next step up in the 5.6L V8 range, above the F375, and shares most of its design with its stablemate. That design was created to be a step above the Japanese manufacturer's previous offerings, with heavy-duty components used wherever possible and careful consideration given to long-term serviceability.
This extends to elements like the cowling design, which was reworked from previous Yamaha models to make it easier to perform oil changes while in dock. Other revised systems include the new exhaust design, which reroutes emissions through a trio of exits that are automatically adjusted based on the engine's rpm. That allows for significantly higher levels of reverse thrust than were previously possible, without additional fuel consumption. The direct-injection system, another unique feature to Yamaha, also helps keep fuel consumption down without compromising on power.
The penultimate offering in Yamaha's flagship V8 range is the F425. It requires only 89 octane fuel to reach its maximum 425 horsepower output, much like the other variants in the range. It also boasts the same electric steering system, which is worth delving deeper into. The system is unique to Yamaha and the brand claims that it's the first of its kind, being more efficient and also more responsive than its rivals.
The key difference is that the system uses an electric motor to move the engine rather than relying on an electric pump driving a hydraulic system. Cutting out the hydraulics cuts down on maintenance, as well as reducing the complexity of the system, which should in turn increase reliability. It also boosts reaction time, making it a clear upgrade over a traditional hydraulic-based system.
All of this means that not only is the F425 exceptionally powerful, it's also exceptionally maneuverable thanks to the upgraded steering.
The most powerful Yamaha marine engine made to date is the XTO F450, which was unveiled in 2023. It's the most powerful iteration of Yamaha's 5.6L V8 range, with a revised exhaust system helping to hit this new power benchmark. Other systems, including its direct injection system and electric steering, are shared with the less potent variants of the V8 range. The 450 horsepower engine allows larger boats than ever before to make use of Yamaha's outboard range, and also adds a high-output option for existing users looking to upgrade for maximum performance.
For now, it is the pinnacle of Yamaha's engine range, and there's no indication that it won't stay that way for the foreseeable future. The usefulness –- and therefore business case -– for significantly more powerful outboard motors is questionable, although rival brand Mercury already offers an engine with as much as 600 horsepower. Whether Yamaha eventually steps into that power bracket remains to be seen, but for now, the XTO F450 remains more than powerful enough for even the most demanding boat owners.
There are safety recalls, and then there are really time-consuming, expensive safety recalls. Toyota is experiencing the latter, having discovered earlier this year a defect in its twin-turbocharged V-6 truck engines that power the Tundra pickup truck as well as Lexus's LX luxury SUVs — at least, those 2022 to 2023 model-year variants built between November 2021 and February 2023 (or the same model years built between July 2021 and November 2022 for the LX). The issue can cause the engine stall unexpectedly; per Toyota's NHTSA recall notices to dealers:
"There is a possibility that certain machining debris may not have been cleared from the engine when it was produced. In the involved vehicles, this can lead to potential engine knocking, engine rough running, engine no start and/or a loss of motive power. A loss of motive power while driving at higher speeds can increase the risk of a crash."
When Toyota submitted documentation of the issue to NHTSA (National Highway Traffic Safety Administration) in May 2024, it noted that a fix for the 102,092 potentially affected vehicles was still being determined. At the time, Toyota also estimated that 1 percent of those vehicles might actually suffer from the defect, but that was due to a quirk in NHTSA's filing requirements. As the company notes in the filing, it only estimated a 1-percent failure rate because it in fact was "unable to estimate the percentage of the involved vehicles to actually contain the defect described in Section 5. However, as the NHTSA manufacturer portal requires an integer value be entered, Toyota has entered the value “1” in response to this question in the portal. For the purpose of this report, '1' means 'unknown'."
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Two months later, it seems Toyota arrived no closer to a solid estimate of how many Tundras and LX models are potentially impacted by the machining debris issue, so it's decided to remedy the problem by replacing every potentially affected engine, per reporting by Automotive News . (We've reached out to Toyota for confirmation that this is, in fact, the fix, and will update this piece when we hear back.) Toyota notes that this remedy applies only (at least so far) to the non-hybrid versions of its V35A twin-turbocharged 3.4-liter V-6 engines; the hybrid variants (available in the Tundra) can still provide motive power in the event of an engine failure, thanks to their electric motors.
The company began investigating the issue back in March 2022, following a report of a customer vehicle stalling; it determined the main bearings had seized. More similar reports began flowing in, and Toyota kept working to determine the cause through 2023 (and yet more reports of damaged engines), eventually determining errant machining debris was the cause (after noting issues with even "good" engines Toyota had "recovered from the field") and initiating a voluntary recall campaign following a total of 166 Toyota Field Technical Reports highlighting the issue and 824 warranty claims on engines.
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Yanking the engines from over 100,000 vehicles (an estimated 98,600 Tundras and 3,500 LX SUVs), and then replacing those engines, will be eye-wateringly expensive for Toyota, both as measured in the pure cost of the replacement engines, the labor involved and production of new engines for new trucks and SUVs potentially lost to spinning up enough replacement engines to cover the recall. But good on Toyota for arriving at a safe, thorough remedy to a problem that could impact only a handful of vehicles or possibly many, many more. Notices to owners are being sent out before the end of this month.
Photos by MotorTrend
Car recalls aren’t fun for owners or automakers. However, they are an unavoidable aspect of owning a vehicle from recent years. Of course, Ford recently issued an airbag recall, but now the Blue Oval has another one on its hands. This time, the recall concerns the risk that some of the automaker’s engines could catch fire. In particular, it impacts the Ford Explorer SUV.
There have been several car recalls this year alone, and Ford has been at the center of quite a few. According to Reuters , the automaker has plans to fix about 85,000 Ford Explorer SUVs that have the Police Interceptor Utility package added to them. This car recall is happening because there is a risk that the engines in these vehicles could catch fire.
The report states that if the engine fails in these Ford Explorer SUVs, oil and fuel could get into the engine compartment. If these substances get too close to the hot engine or various parts of the exhaust system, an engine compartment fire could occur. Unlike many car recalls, only one vehicle is impacted. It specifically addresses the Ford Explorer SUVs with the Police Interceptor Utility package from 2020-2022 that use the 3.3-liter engine.
The Ford Police Interceptor Utility package has been around since 2013, and law enforcement agencies all over the country use it. The Ford Explorer SUV with this package is the bestselling police vehicle in the U.S. Notably, Ford just announced the 2025 version of the SUV.
For more reading on car recalls, check out our article on the Ford airbag recall.
Barnell Anderson joined the MotorBiscuit team in 2023. After earning a Master of Arts in English from Louisiana Tech University, Barnell found his way into automotive journalism. He’s been writing about the automotive industry since 2021, creating vehicle comparisons and discussing reliability and vehicle safety ratings for various outlets, including HotCars and SlashGear.
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Reporting by Ananta Agarwal in Bengaluru; Editing by Devika Syamnath and Tasim Zahid
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The Ford Motor Company World Headquarters logo pictured in Dearborn, Michigan on March 30, 2020. (Jeremy Marble | MLive.com) Jeremy Marble | MLive.com
DETROIT -- A problem that can cause engine fires has led Ford to recall an estimated 85,000 of its Explorer Police Interceptor Utility vehicles, according to the Associated Press. The recall impacts the SUVs with model years 2020 to 2022 and have 3.3L hybrid or gas engines.
So far, Ford has received 13 complaints regarding under hood fires in North America that involve engine block breaches on the SUVs in question. Ford says the fires all happened on models built with 3.3L engines made before June 2, 2022 and that the issue does not impact non-police vehicles.
No injuries or accidents related to the problem have been reported to Ford, according to documents posted by the National Highway Traffic Safety Administration.
The issue stems from possible engine failures that can lead to significant quantities of engine oil or fuel vapor possibly being released under the hood. If that happens, the oil or vapor can migrate to and accumulate near ignition sources which increases the risk of a fire.
While a fix for the problem has not yet been developed, Ford plans to mail a letter to impacted vehicle owners advising them that the investigation is ongoing. Ford will also reach out to owners when more information is available. Parts and a software update are expected to be ready in the second quarter of next year.
Until a fix can be developed, Ford is asking owners of impacted models to safely park and shut off the engine as soon as possible if they hear any unexpected engine noises. Owners should also stop driving the vehicle if they experience any unexpected torque reduction, or if smoke is seen coming from the engine compartment.
Ford issues do not drive warning for several older vehicles over Takata air bag recall
Tesla recalls 1.8M vehicles over hood problem that can increase risk of crash
Hyundai announces pair of recalls involving nearly 67K vehicles
Stellantis says 24K hybrid minivans should be parked outside over increased fire risk
Investigation underway regarding 94K Jeep Wranglers that can suffer a loss of power
390K older BMW vehicles recalled over Takata air bag inflator issue
Tesla recalls Cybertruck for 4th time since it went on sale 7 months ago
550K Ford F-150 trucks recalled because they can downshift to first gear without warning
Estimated 1.2 million Stellantis vehicles recalled over software glitch
Chrysler recalls 211K SUVs, trucks over software issue that can disable safety feature
Toyota announces recall of 102K vehicles over possible debris in engine
Nissan issues ‘do not drive’ warning for 84K older vehicles, is yours on the list?
Investigators seek answers from Ford on fuel leak recall involving 43K SUVs
Ford Maverick trucks recalled because tail lights may not turn on
Ford announces another recall involving Bronco Sport models, Mavericks recalled too
318K Dodge Charger, Chrysler 300 models recalled over airbags that can explode
Mercedes-Benz recalls 116,000 vehicles over fire risk
330K Jeep Grand Cherokees recalled; if you drive one of these models, you may need repairs soon
If you own one of these newer Toyota trucks, a recall notice might be coming your way
Toyota recalls 280,000 trucks and SUVs over transmission power problem
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Inboard Engines. Inboard engines are usually 4-stroke automotive engines that have been modified to be used in a boat. The engine is mounted in the hull forward of the stern of the boat and is connected to a shaft that drives the propeller. On fully inboard boats, the propeller is also underneath the boat rather than protruding from the transom ...
Choosing the right outboard motor for your boat is essential to getting the most value from your boating experience.
Let's take an in-depth look at motorboat engines and power systems. Strictly speaking, the engine is what creates power and the drive system is what transfers that power into thrust. So logically, you want to distinguish between the two. There's just one problem: many power and drive systems are integrated.
Pursue Your Calling - For work or for play, sport or adventure, Mercury outboards are engineered to ensure there's nothing holding you back.
During the past decade outboard engines have grown dramatically in size, popularity, and reliability, with technological advancements so important that the once-settled two-stroke versus four-stroke debate has been re-opened, alternative fuel outboards have become a viable option, and significant benefits like joystick steering are now a consideration. So, how will you know which outboard to ...
A Beginners Guide to Motorboats There are many different types of motorboats, from small runabouts to mega yachts, with a vast array of hull shapes, construction materials, and propulsion systems. Sometimes referred to as powerboats, motor yachts, or superyachts (typically when over 100 feet long), what these boats share in common is that they all have some sort of engine or motor for ...
Outboard motor. An outboard motor is a propulsion system for boats, consisting of a self-contained unit that includes engine, gearbox and propeller or jet drive, designed to be affixed to the outside of the transom. They are the most common motorised method of propelling small watercraft. As well as providing propulsion, outboards provide ...
We reviewed the best outboard motors from Mercury, Yamaha, and more. Find the right outboard engine for your boating needs.
The last type of engine is the stern drive, which is sometimes called an "inboard-outboard" because it shares features of both types of engines. Similar to inboards, stern drive engines use a four-stroke automotive engine mounted on the inside of the hull to power the boat.
A motorboat, speedboat or powerboat is a boat that is exclusively powered by an engine . Some motorboats are fitted with inboard engines, others have an outboard motor installed on the rear, containing the internal combustion engine, the gearbox and the propeller in one portable unit. An inboard-outboard contains a hybrid of an inboard and an ...
Explore our range of outboard motors, including electric, propane, and 4-stroke engines. Find the perfect motor for your boat with high performance and reliability.
4-stroke 6 HP Outboard Motor Boat Engine,170cc Heavy Duty Boat Engine w/Air Cooling System, Single Cylinder Fishing Boats Engine, Outboard Motor for Inflatable Boats, Canoes, Sailboats, Yachts. 7. $32299. Typical: $342.99. Save 5% with coupon.
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2. Mercury Outboards With a variety of different options, Mercury Outboard Motors are the best choice for any type of boating experience, offering high-performance engines and innovative designs to make your next journey a memorable one. From leisurely days on the lake to getting through rough waters, these advanced outboard motors provide superior power, performance, and durability. Boasting ...
Buy WenDissy 4 Stroke 4HP Outboard Boat Motors, 52CC Electric Outboard Engine with Air Cooling and CDI Ignition System, Outboard Trolling Engine For Heavy Duty Fishing Boats, Inflatable Boat, Gas Boat: Outboard Motors - Amazon.com FREE DELIVERY possible on eligible purchases
motorboat, a relatively small watercraft propelled by an internal-combustion or electric engine. Motorboats range in size from miniature craft designed to carry one person to seagoing vessels of 100 feet (30 m) or more. Most motorboats, however, have space for six passengers or fewer. Motorboats are used recreationally for traveling on water ...
If you are searching for a dependable and competitively priced outboard motor, Yamaha has a diverse selection available. Here are the most powerful available.
The sheer number of engines being replaced is going to make this a very, very expensive manufacturing defect.
The report states that if the engine fails in these Ford Explorer SUVs, oil and fuel could get into the engine compartment. If these substances get too close to the hot engine or various parts of the exhaust system, an engine compartment fire could occur. Unlike many car recalls, only one vehicle is impacted.
Ford Motor is recalling about 85,000 Explorer SUVs equipped with the Police Interceptor Utility package over concerns of an engine fire, the National Highway Traffic Safety Administration said on ...
The New York State vehicle safety inspection program helps make sure every vehicle registered in this state meets the minimum standards for safe operation on public streets and highways.
Marine engines and power systems can be quite complex and varied. Here we demystify them and explain the basics behind what powers your boat to help you better understand all the types of motorboat engines out there on the water.
The new Lamborghini Temerario supercar loses the V-10 but gains a twin-turbo V-8 hybrid with three electric motors and 920 horsepower.
DETROIT -- A problem that can cause engine fires has led Ford to recall an estimated 85,000 of its Explorer Police Interceptor Utility vehicles, according to the Associated Press.