Outboard jet motors are essential for boaters who navigate shallow rivers, rocky streams, or weedy lakes where a standard propeller would be damaged. We researched and compared seven leading models based on manufacturer specifications, published industry standards for thrust and flow, and aggregated owner feedback from Amazon and boating forums. Our evaluation focuses on power output, durability, ease of installation, and real-world reliability to help you find the best outboard jet motor for your needs.
| Photo | Product | Score | Buy |
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Mercury 60 HP Jet Outboard Best Overall 60 HP, 4-stroke, 747cc, 25-inch shaft |
9.1 | 🛒 Check Price |
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Yamaha 50 HP Jet Outboard Best Value 50 HP, 4-stroke, 996cc, 20-inch shaft |
8.7 | 🛒 Check Price |
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Suzuki 50 HP Jet Outboard Most Durable 50 HP, 4-stroke, 941cc, 25-inch shaft |
8.4 | 🛒 Check Price |
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Tohatsu 40 HP Jet Outboard Lightweight Champion 40 HP, 2-stroke, 698cc, 20-inch shaft |
8.1 | 🛒 Check Price |
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Honda 30 HP Jet Outboard Quietest Runner 30 HP, 4-stroke, 808cc, 20-inch shaft |
7.8 | 🛒 Check Price |
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Mercury 25 HP Jet Outboard Best for Small Boats 25 HP, 4-stroke, 499cc, 20-inch shaft |
7.3 | 🛒 Check Price |
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Yamaha 25 HP Jet Outboard Budget Friendly 25 HP, 2-stroke, 496cc, 20-inch shaft |
7 | 🛒 Check Price |
1. Mercury 60 HP Jet Outboard: Best Overall
The Mercury 60 HP Jet Outboard earned our top spot after comparing spec sheets and owner feedback. Its 747cc 4-stroke engine with EFI provides smooth power delivery and excellent fuel economy, while the jet pump design minimizes cavitation even in shallow water. Owners consistently praise its reliability and the availability of service parts. However, at 260 pounds, it is heavier than some two-stroke alternatives, which may be a consideration for smaller boats.
This motor is best for boaters who prioritize fuel efficiency and long-term durability over absolute weight savings. If you need a lighter setup for a lightweight jon boat, consider the Tohatsu 40 HP Jet instead. The Mercury is ideal for aluminum fishing boats and skiffs used in rocky rivers.
- Proven 4-stroke engine with electronic fuel injection for reliable starts and smooth idle
- High-output jet pump delivers excellent thrust in shallow water with minimal cavitation
- Corrosion-resistant stainless steel wear ring and impeller for long life in sandy conditions
Pros: Exceptional fuel efficiency and low emissions; Strong dealer network and parts availability
Cons: Heavier than some competitors at 260 lbs
2. Yamaha 50 HP Jet Outboard: Best Value
The Yamaha 50 HP Jet Outboard offers a compelling balance of performance and cost. In our evaluation, its 996cc engine delivers impressive torque that helps boats get on plane quickly, even with moderate loads. Owner feedback highlights its corrosion resistance and ease of maintenance. However, a few users noted cavitation issues when running in extremely shallow water (less than 6 inches), which may be a drawback for serious shallow-water anglers.
This motor is an excellent choice for budget-conscious buyers who want Yamaha reliability without the premium price of the Mercury 60. If you frequently run in very shallow water, you might prefer the Yamaha 40 HP Jet with a smaller intake for better clearance.
- Large 996cc displacement provides strong low-end torque for planing
- Yamaha's signature corrosion protection with multi-layer paint and anodes
- Compact design fits many transoms with standard 20-inch shaft
Pros: Excellent torque for its horsepower class; Relatively affordable compared to Mercury and Suzuki
Cons: Some owners report cavitation in very shallow water
3. Suzuki 50 HP Jet Outboard: Most Durable
The Suzuki 50 HP Jet Outboard stands out for its rugged construction. Our research shows it uses twin water intakes that help prevent debris from clogging the pump, a common issue in weedy waters. Owner feedback consistently mentions its long service life even in saltwater, thanks to extensive use of stainless steel and zinc anodes. The downside is weight: at 275 pounds, it is one of the heaviest in its class, which may require a reinforced transom.
This motor is best for boaters who operate in harsh saltwater environments or need a motor that can withstand years of abuse. If weight is a critical factor, the Tohatsu 40 HP Jet is much lighter.
- Twin water intakes reduce debris ingestion and improve reliability
- Sacrificial zinc anodes and stainless steel hardware for saltwater use
- Large displacement 941cc engine for durability under load
Pros: Exceptional build quality and corrosion resistance; Quiet operation with minimal vibration
Cons: Heavier than comparable models at 275 lbs
4. Tohatsu 40 HP Jet Outboard: Lightweight Champion
The Tohatsu 40 HP Jet Outboard is the go-to choice for weight-sensitive applications. At just 185 pounds, it is significantly lighter than most 4-stroke jets, making it ideal for small boats where every pound matters. Owner feedback highlights its simplicity and reliability, though the 2-stroke engine is louder and less fuel efficient than modern 4-strokes. In our evaluation, its thrust is adequate for planing lightweight hulls but may struggle with heavy loads.
This motor is perfect for hunters and anglers who frequently portage or use small inflatables. If you prioritize quiet operation and fuel economy, consider the Yamaha 50 HP Jet instead.
- Weighs only 185 pounds, making it the lightest 40 HP jet outboard
- Simple 2-stroke design is easy to maintain and repair
- Compact footprint ideal for small jon boats and inflatables
Pros: Very easy to install and remove by one person; Affordable price point for budget builds
Cons: Less fuel efficient and louder than 4-stroke models
5. Honda 30 HP Jet Outboard: Quietest Runner
The Honda 30 HP Jet Outboard is the quietest model we evaluated. Its 808cc 4-stroke engine runs with minimal noise and vibration, making it a favorite for electric-start applications. Owner feedback praises its reliability and ease of starting. However, with only 30 horsepower, it is best suited for small boats and light loads. In our comparison, it lacks the thrust needed for larger hulls or heavy gear.
This motor is ideal for canoeists and kayakers who want a quiet auxiliary power source or for small fishing dinghies. If you need more power for planing, look at the Mercury 60 HP Jet.
- Honda's legendary 4-stroke engine is exceptionally quiet and smooth
- High-capacity oil pump ensures reliable lubrication at all angles
- Lightweight at 198 pounds for a 4-stroke
Pros: Very low noise and vibration levels; Excellent fuel economy for its power class
Cons: Lower horsepower limits top speed and load capacity
6. Mercury 25 HP Jet Outboard: Best for Small Boats
The Mercury 25 HP Jet Outboard is a solid entry-level option for very small boats. Its 499cc engine provides enough thrust for lightweight hulls in calm conditions, but our research indicates it struggles in current or with two passengers. Owner feedback is mixed: some appreciate its portability, while others wish for more power. The manual start is reliable but can be tiring.
This motor is best for solo hunters or fishermen using a 10-12 foot jon boat in shallow creeks. If you need to carry a passenger or gear, step up to the Tohatsu 40 HP Jet.
- Compact and lightweight at 154 pounds
- Easy to tilt and store with integrated handle
- Reliable 4-stroke engine with manual start
Pros: Very portable for small inflatables and prams; Simple operation with no electronics
Cons: Limited power for anything beyond flat water
7. Yamaha 25 HP Jet Outboard: Budget Friendly
The Yamaha 25 HP Jet Outboard is the most budget-friendly option we evaluated. Its 2-stroke engine is light and simple, but it lacks the refinement of 4-stroke models. In our research, owner feedback highlights frequent need for carburetor cleaning and higher fuel consumption. The jet pump is adequate for very shallow water but cavitates easily under load.
This motor is suitable for occasional use on a small duck boat or tender. For more reliable performance, consider the Mercury 25 HP Jet or step up to the Tohatsu 40 HP Jet.
- Lightest in class at 127 pounds
- Simple pull-start design with primer bulb
- Low initial purchase price
Pros: Extremely easy to transport and mount; Affordable for budget builds
Cons: 2-stroke smoke and noise may be off-putting
Frequently Asked Questions
How does an outboard jet motor differ from a propeller outboard?
An outboard jet motor uses an impeller to draw water and expel it as a high-speed jet, rather than a rotating propeller. This design allows operation in very shallow water (as low as 6 inches) with no risk of prop damage from rocks or weeds. However, jet motors typically produce less thrust at low speeds and have lower fuel efficiency compared to propeller models of the same horsepower.
What maintenance does a jet outboard require?
Regular maintenance includes flushing the cooling system with fresh water after saltwater use, inspecting the wear ring and impeller for damage, and changing the engine oil and gear oil per the manufacturer’s schedule. The jet pump should be disassembled annually to check for debris and wear. Owner feedback emphasizes that neglecting the wear ring can lead to significant performance loss.
Can I convert my existing propeller outboard to a jet drive?
Yes, aftermarket jet drive conversion kits are available for many outboard models. However, the conversion may require a higher horsepower rating (typically 20-30% more) to achieve similar performance, and installation can be complex. We recommend checking compatibility with your specific engine and considering a dedicated jet outboard for best results.
What size jet outboard do I need for my boat?
The required horsepower depends on boat weight, length, and intended use. As a rule of thumb, jet outboards need about 20-30% more horsepower than a propeller to achieve the same speed. For a 14-foot aluminum boat, 30-50 HP is typical. Always check the boat’s maximum horsepower rating and consider that jet motors are heavier, which affects flotation.
Are jet outboards safe for swimming areas?
Jet outboards are generally safer than propellers because there is no exposed spinning blade. The water jet itself can cause injury if directed at a person, but the risk is lower. Always follow safety guidelines and avoid operating near swimmers. Some models include a safety lanyard kill switch.
Our Verdict
After researching and comparing seven models, we recommend the Mercury 60 HP Jet Outboard as the top pick for its overall performance, reliability, and fuel efficiency. For a more budget-friendly option, the Yamaha 50 HP Jet Outboard offers excellent value and strong torque. Choose the Mercury if you need maximum power and durability; choose the Yamaha if you want a proven motor at a lower investment.
