Yamaha F4 BMHS Outboard for families to get on the water easily, or for a yacht owner wanting a handy auxiliary the Yamaha F4 offers the smartest solution.
Yamaha F4 BMHS Outboard – 4hp High-Thrust Four-Stroke Engine
Product Description
The Yamaha F4 BMHS is a compact, high-thrust 4 horsepower four-stroke outboard, engineered for small boats, tenders, and day cruisers navigating the calm yet occasionally challenging waters of the Norfolk Broads. The High-Thrust (HS) design provides greater propeller torque for improved control, especially on heavier boats or when moving against currents.
This lightweight, fuel-efficient engine combines quiet operation with Yamaha’s renowned reliability. Its four-stroke design ensures low emissions, reduced fuel consumption, and minimal maintenance, making it an environmentally conscious choice for freshwater boating. Ideal for anglers, leisure boaters, or anyone needing a dependable outboard, the F4 BMHS balances portability, power, and precision handling.
Key Features
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4 horsepower four-stroke engine – smooth and reliable
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High-thrust propeller – superior control on heavier boats and in currents
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Lightweight and portable – easy to carry, mount, and store
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Quiet operation – perfect for fishing or serene cruising
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Fuel-efficient and eco-friendly – reduced emissions and running costs
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Durable, low-maintenance design – suitable for long-term use in freshwater
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Manual start with responsive tiller steering – easy handling for all users
Specifications
| Feature | Specification |
|---|---|
| Engine Type | 4-stroke, single-cylinder |
| Displacement | 139 cc |
| Maximum Power | 4 hp (2.9 kW) |
| Shaft Length | 15 inches (long shaft) |
| Starting System | Manual |
| Gear Ratio | 2.08:1 |
| Fuel Type | Unleaded petrol |
| Ignition | CDI (Capacitor Discharge Ignition) |
| Lubrication | Wet sump |
| Weight | Approx. 23 kg |
| Propeller | 3-blade high-thrust aluminum |
| Cooling System | Water-cooled |
| Trim / Tilt | Manual tilt |
| Steering | Tiller handle |
| Recommended Use | Small boats, tenders, leisure craft, anglers in rivers, broads, and coastal waters |
The Yamaha F4 BMHS is ideal for Norfolk Broads boating enthusiasts who need reliable, high-thrust performance in a compact and lightweight package. Its combination of efficiency, control, and durability makes it a top choice for small vessels navigating rivers, broads, or calm coastal areas.




Alexander Thomas –
Good quality item with solid performance. The delivery process was smooth and communication was clear throughout. Everything arrived intact and ready to use. It does exactly what it is supposed to do and offers fair value for the price paid.
Henry Brown –
This product met my expectations. It was delivered safely and in excellent condition. The materials feel durable and well made. Setup was simple and the instructions were easy to understand. I would recommend it to anyone looking for dependable performance.
Amelia Thompson –
This product met my expectations. It was delivered safely and in excellent condition. The materials feel durable and well made. Setup was simple and the instructions were easy to understand. I would recommend it to anyone looking for dependable performance.
Amelia Taylor –
Good quality item with solid performance. The delivery process was smooth and communication was clear throughout. Everything arrived intact and ready to use. It does exactly what it is supposed to do and offers fair value for the price paid.
James Harris –
Very pleased with the overall experience. Shipping was faster than expected and the packaging protected the item perfectly. The quality meets expectations and it performs consistently. Good value for the price and customer service responded quickly when I had a small query.
Harper Walker –
This product met my expectations. It was delivered safely and in excellent condition. The materials feel durable and well made. Setup was simple and the instructions were easy to understand. I would recommend it to anyone looking for dependable performance.
Mia Anderson –
The product arrived well packaged and exactly as described. Delivery was prompt and everything was secure. The build quality feels solid and reliable. Installation was straightforward thanks to the clear instructions provided. Overall I am very satisfied with this purchase and would consider buying again.
Olivia Jackson –
This product met my expectations. It was delivered safely and in excellent condition. The materials feel durable and well made. Setup was simple and the instructions were easy to understand. I would recommend it to anyone looking for dependable performance.
Michael Anderson109 –
Startup is quick and reliable, and the throttle response feels strong and consistent on the water. After several trips out on the water, I can say the engine performs steadily even in slightly rough conditions. I recently purchased the Outboard Engine and the overall experience has been excellent from start to finish. Overall, I am very satisfied with this purchase and would confidently recommend it to other boat owners. Installation was straightforward, and the engine mounted smoothly onto my boat without any complications. Noise levels are lower than I expected for this class of engine, which makes cruising much more comfortable. The build quality feels solid and durable, giving me confidence for long-term performance.
Thomas Harris110 –
Delivery was faster than anticipated, and customer communication throughout the process was clear and professional. Overall, I am very satisfied with this purchase and would confidently recommend it to other boat owners. The packaging was secure and everything arrived in perfect condition without any scratches or missing parts. I recently purchased the Outboard Engine and the overall experience has been excellent from start to finish. After several trips out on the water, I can say the engine performs steadily even in slightly rough conditions. Installation was straightforward, and the engine mounted smoothly onto my boat without any complications. Startup is quick and reliable, and the throttle response feels strong and consistent on the water.
Eric Jackson111 –
The packaging was secure and everything arrived in perfect condition without any scratches or missing parts. Noise levels are lower than I expected for this class of engine, which makes cruising much more comfortable. After several trips out on the water, I can say the engine performs steadily even in slightly rough conditions. I recently purchased the Outboard Engine and the overall experience has been excellent from start to finish. Delivery was faster than anticipated, and customer communication throughout the process was clear and professional. Fuel efficiency has been impressive, especially during longer fishing trips and weekend outings. Overall, I am very satisfied with this purchase and would confidently recommend it to other boat owners.
Daniel Jones112 –
The packaging was secure and everything arrived in perfect condition without any scratches or missing parts. I recently purchased the Outboard Engine and the overall experience has been excellent from start to finish. Noise levels are lower than I expected for this class of engine, which makes cruising much more comfortable. Fuel efficiency has been impressive, especially during longer fishing trips and weekend outings. Delivery was faster than anticipated, and customer communication throughout the process was clear and professional. Installation was straightforward, and the engine mounted smoothly onto my boat without any complications. The build quality feels solid and durable, giving me confidence for long-term performance.
Ryan Thomas113 –
The build quality feels solid and durable, giving me confidence for long-term performance. I recently purchased the Outboard Engine and the overall experience has been excellent from start to finish. Overall, I am very satisfied with this purchase and would confidently recommend it to other boat owners. Fuel efficiency has been impressive, especially during longer fishing trips and weekend outings. Startup is quick and reliable, and the throttle response feels strong and consistent on the water. The packaging was secure and everything arrived in perfect condition without any scratches or missing parts. Installation was straightforward, and the engine mounted smoothly onto my boat without any complications.
Eric Clark114 –
Startup is quick and reliable, and the throttle response feels strong and consistent on the water. The build quality feels solid and durable, giving me confidence for long-term performance. Noise levels are lower than I expected for this class of engine, which makes cruising much more comfortable. The packaging was secure and everything arrived in perfect condition without any scratches or missing parts. Delivery was faster than anticipated, and customer communication throughout the process was clear and professional. After several trips out on the water, I can say the engine performs steadily even in slightly rough conditions. Fuel efficiency has been impressive, especially during longer fishing trips and weekend outings.
Thomas Martinez115 –
Overall, I am very satisfied with this purchase and would confidently recommend it to other boat owners. After several trips out on the water, I can say the engine performs steadily even in slightly rough conditions. I recently purchased the Outboard Engine and the overall experience has been excellent from start to finish. Startup is quick and reliable, and the throttle response feels strong and consistent on the water. The packaging was secure and everything arrived in perfect condition without any scratches or missing parts. Fuel efficiency has been impressive, especially during longer fishing trips and weekend outings. The build quality feels solid and durable, giving me confidence for long-term performance.
Daniel Jones116 –
The build quality feels solid and durable, giving me confidence for long-term performance. Fuel efficiency has been impressive, especially during longer fishing trips and weekend outings. I recently purchased the Outboard Engine and the overall experience has been excellent from start to finish. The packaging was secure and everything arrived in perfect condition without any scratches or missing parts. Noise levels are lower than I expected for this class of engine, which makes cruising much more comfortable. Delivery was faster than anticipated, and customer communication throughout the process was clear and professional. Overall, I am very satisfied with this purchase and would confidently recommend it to other boat owners.
Robert Clark117 –
Overall, I am very satisfied with this purchase and would confidently recommend it to other boat owners. Installation was straightforward, and the engine mounted smoothly onto my boat without any complications. After several trips out on the water, I can say the engine performs steadily even in slightly rough conditions. The build quality feels solid and durable, giving me confidence for long-term performance. Noise levels are lower than I expected for this class of engine, which makes cruising much more comfortable. Delivery was faster than anticipated, and customer communication throughout the process was clear and professional. The packaging was secure and everything arrived in perfect condition without any scratches or missing parts.
Michael Martinez118 –
Startup is quick and reliable, and the throttle response feels strong and consistent on the water. I recently purchased the Outboard Engine and the overall experience has been excellent from start to finish. After several trips out on the water, I can say the engine performs steadily even in slightly rough conditions. Overall, I am very satisfied with this purchase and would confidently recommend it to other boat owners. Fuel efficiency has been impressive, especially during longer fishing trips and weekend outings. The build quality feels solid and durable, giving me confidence for long-term performance. Delivery was faster than anticipated, and customer communication throughout the process was clear and professional.
Adam Garcia119 –
Delivery was faster than anticipated, and customer communication throughout the process was clear and professional. Noise levels are lower than I expected for this class of engine, which makes cruising much more comfortable. Startup is quick and reliable, and the throttle response feels strong and consistent on the water. Fuel efficiency has been impressive, especially during longer fishing trips and weekend outings. The packaging was secure and everything arrived in perfect condition without any scratches or missing parts. After several trips out on the water, I can say the engine performs steadily even in slightly rough conditions. Overall, I am very satisfied with this purchase and would confidently recommend it to other boat owners.
Michael Williams120 –
The build quality feels solid and durable, giving me confidence for long-term performance. Installation was straightforward, and the engine mounted smoothly onto my boat without any complications. After several trips out on the water, I can say the engine performs steadily even in slightly rough conditions. Delivery was faster than anticipated, and customer communication throughout the process was clear and professional. I recently purchased the Outboard Engine and the overall experience has been excellent from start to finish. Noise levels are lower than I expected for this class of engine, which makes cruising much more comfortable. The packaging was secure and everything arrived in perfect condition without any scratches or missing parts.
Nathan Thomas121 –
I recently purchased the Outboard Engine and the overall experience has been excellent from start to finish. The packaging was secure and everything arrived in perfect condition without any scratches or missing parts. Startup is quick and reliable, and the throttle response feels strong and consistent on the water. The build quality feels solid and durable, giving me confidence for long-term performance. Delivery was faster than anticipated, and customer communication throughout the process was clear and professional. Noise levels are lower than I expected for this class of engine, which makes cruising much more comfortable. After several trips out on the water, I can say the engine performs steadily even in slightly rough conditions.
Ryan Jackson122 –
I recently purchased the Outboard Engine and the overall experience has been excellent from start to finish. Overall, I am very satisfied with this purchase and would confidently recommend it to other boat owners. The packaging was secure and everything arrived in perfect condition without any scratches or missing parts. Startup is quick and reliable, and the throttle response feels strong and consistent on the water. Installation was straightforward, and the engine mounted smoothly onto my boat without any complications. Delivery was faster than anticipated, and customer communication throughout the process was clear and professional. Fuel efficiency has been impressive, especially during longer fishing trips and weekend outings.
Ryan Martinez123 –
The build quality feels solid and durable, giving me confidence for long-term performance. The packaging was secure and everything arrived in perfect condition without any scratches or missing parts. Installation was straightforward, and the engine mounted smoothly onto my boat without any complications. I recently purchased the Outboard Engine and the overall experience has been excellent from start to finish. After several trips out on the water, I can say the engine performs steadily even in slightly rough conditions. Overall, I am very satisfied with this purchase and would confidently recommend it to other boat owners. Delivery was faster than anticipated, and customer communication throughout the process was clear and professional.
Michael Williams124 –
Overall, I am very satisfied with this purchase and would confidently recommend it to other boat owners. Delivery was faster than anticipated, and customer communication throughout the process was clear and professional. The packaging was secure and everything arrived in perfect condition without any scratches or missing parts. Installation was straightforward, and the engine mounted smoothly onto my boat without any complications. Startup is quick and reliable, and the throttle response feels strong and consistent on the water. Noise levels are lower than I expected for this class of engine, which makes cruising much more comfortable. After several trips out on the water, I can say the engine performs steadily even in slightly rough conditions.
Jason Williams125 –
I recently purchased the Outboard Engine and the overall experience has been excellent from start to finish. Fuel efficiency has been impressive, especially during longer fishing trips and weekend outings. After several trips out on the water, I can say the engine performs steadily even in slightly rough conditions. The packaging was secure and everything arrived in perfect condition without any scratches or missing parts. The build quality feels solid and durable, giving me confidence for long-term performance. Startup is quick and reliable, and the throttle response feels strong and consistent on the water. Delivery was faster than anticipated, and customer communication throughout the process was clear and professional.
Jason Jones126 –
Delivery was faster than anticipated, and customer communication throughout the process was clear and professional. I recently purchased the Outboard Engine and the overall experience has been excellent from start to finish. Installation was straightforward, and the engine mounted smoothly onto my boat without any complications. The packaging was secure and everything arrived in perfect condition without any scratches or missing parts. The build quality feels solid and durable, giving me confidence for long-term performance. After several trips out on the water, I can say the engine performs steadily even in slightly rough conditions. Overall, I am very satisfied with this purchase and would confidently recommend it to other boat owners.
Charles White127 –
The packaging was secure and everything arrived in perfect condition without any scratches or missing parts. Startup is quick and reliable, and the throttle response feels strong and consistent on the water. Fuel efficiency has been impressive, especially during longer fishing trips and weekend outings. Overall, I am very satisfied with this purchase and would confidently recommend it to other boat owners. Noise levels are lower than I expected for this class of engine, which makes cruising much more comfortable. Delivery was faster than anticipated, and customer communication throughout the process was clear and professional. The build quality feels solid and durable, giving me confidence for long-term performance.
Thomas Miller128 –
The packaging was secure and everything arrived in perfect condition without any scratches or missing parts. The build quality feels solid and durable, giving me confidence for long-term performance. Overall, I am very satisfied with this purchase and would confidently recommend it to other boat owners. Delivery was faster than anticipated, and customer communication throughout the process was clear and professional. Fuel efficiency has been impressive, especially during longer fishing trips and weekend outings. Noise levels are lower than I expected for this class of engine, which makes cruising much more comfortable. Installation was straightforward, and the engine mounted smoothly onto my boat without any complications.
David Williams129 –
I recently purchased the Outboard Engine and the overall experience has been excellent from start to finish. Noise levels are lower than I expected for this class of engine, which makes cruising much more comfortable. Installation was straightforward, and the engine mounted smoothly onto my boat without any complications. Overall, I am very satisfied with this purchase and would confidently recommend it to other boat owners. After several trips out on the water, I can say the engine performs steadily even in slightly rough conditions. The build quality feels solid and durable, giving me confidence for long-term performance. The packaging was secure and everything arrived in perfect condition without any scratches or missing parts.
Daniel Jackson130 –
Delivery was faster than anticipated, and customer communication throughout the process was clear and professional. Noise levels are lower than I expected for this class of engine, which makes cruising much more comfortable. The packaging was secure and everything arrived in perfect condition without any scratches or missing parts. After several trips out on the water, I can say the engine performs steadily even in slightly rough conditions. Fuel efficiency has been impressive, especially during longer fishing trips and weekend outings. Installation was straightforward, and the engine mounted smoothly onto my boat without any complications. I recently purchased the Outboard Engine and the overall experience has been excellent from start to finish.
Thomas Davis131 –
Fuel efficiency has been impressive, especially during longer fishing trips and weekend outings. Overall, I am very satisfied with this purchase and would confidently recommend it to other boat owners. Installation was straightforward, and the engine mounted smoothly onto my boat without any complications. Noise levels are lower than I expected for this class of engine, which makes cruising much more comfortable. I recently purchased the Outboard Engine and the overall experience has been excellent from start to finish. The packaging was secure and everything arrived in perfect condition without any scratches or missing parts. The build quality feels solid and durable, giving me confidence for long-term performance.
Andrew Thomas132 –
The packaging was secure and everything arrived in perfect condition without any scratches or missing parts. Installation was straightforward, and the engine mounted smoothly onto my boat without any complications. I recently purchased the Outboard Engine and the overall experience has been excellent from start to finish. Noise levels are lower than I expected for this class of engine, which makes cruising much more comfortable. Fuel efficiency has been impressive, especially during longer fishing trips and weekend outings. Delivery was faster than anticipated, and customer communication throughout the process was clear and professional. Startup is quick and reliable, and the throttle response feels strong and consistent on the water.
Charles Anderson133 –
After several trips out on the water, I can say the engine performs steadily even in slightly rough conditions. The packaging was secure and everything arrived in perfect condition without any scratches or missing parts. The build quality feels solid and durable, giving me confidence for long-term performance. Installation was straightforward, and the engine mounted smoothly onto my boat without any complications. Delivery was faster than anticipated, and customer communication throughout the process was clear and professional. Overall, I am very satisfied with this purchase and would confidently recommend it to other boat owners. Noise levels are lower than I expected for this class of engine, which makes cruising much more comfortable.
Mark Thompson134 –
I recently purchased the Outboard Engine and the overall experience has been excellent from start to finish. Delivery was faster than anticipated, and customer communication throughout the process was clear and professional. The packaging was secure and everything arrived in perfect condition without any scratches or missing parts. The build quality feels solid and durable, giving me confidence for long-term performance. Startup is quick and reliable, and the throttle response feels strong and consistent on the water. Fuel efficiency has been impressive, especially during longer fishing trips and weekend outings. Noise levels are lower than I expected for this class of engine, which makes cruising much more comfortable.
Mark Williams135 –
Startup is quick and reliable, and the throttle response feels strong and consistent on the water. Installation was straightforward, and the engine mounted smoothly onto my boat without any complications. After several trips out on the water, I can say the engine performs steadily even in slightly rough conditions. Noise levels are lower than I expected for this class of engine, which makes cruising much more comfortable. Delivery was faster than anticipated, and customer communication throughout the process was clear and professional. Overall, I am very satisfied with this purchase and would confidently recommend it to other boat owners. Fuel efficiency has been impressive, especially during longer fishing trips and weekend outings.
Mark Smith136 –
Overall, I am very satisfied with this purchase and would confidently recommend it to other boat owners. The build quality feels solid and durable, giving me confidence for long-term performance. Startup is quick and reliable, and the throttle response feels strong and consistent on the water. Fuel efficiency has been impressive, especially during longer fishing trips and weekend outings. Delivery was faster than anticipated, and customer communication throughout the process was clear and professional. Installation was straightforward, and the engine mounted smoothly onto my boat without any complications. The packaging was secure and everything arrived in perfect condition without any scratches or missing parts.
Eric Thomas137 –
Noise levels are lower than I expected for this class of engine, which makes cruising much more comfortable. The packaging was secure and everything arrived in perfect condition without any scratches or missing parts. Overall, I am very satisfied with this purchase and would confidently recommend it to other boat owners. After several trips out on the water, I can say the engine performs steadily even in slightly rough conditions. I recently purchased the Outboard Engine and the overall experience has been excellent from start to finish. Fuel efficiency has been impressive, especially during longer fishing trips and weekend outings. The build quality feels solid and durable, giving me confidence for long-term performance.
Jason Smith138 –
Installation was straightforward, and the engine mounted smoothly onto my boat without any complications. Fuel efficiency has been impressive, especially during longer fishing trips and weekend outings. I recently purchased the Outboard Engine and the overall experience has been excellent from start to finish. After several trips out on the water, I can say the engine performs steadily even in slightly rough conditions. Delivery was faster than anticipated, and customer communication throughout the process was clear and professional. Noise levels are lower than I expected for this class of engine, which makes cruising much more comfortable. Overall, I am very satisfied with this purchase and would confidently recommend it to other boat owners.
Michael White139 –
The build quality feels solid and durable, giving me confidence for long-term performance. Installation was straightforward, and the engine mounted smoothly onto my boat without any complications. Overall, I am very satisfied with this purchase and would confidently recommend it to other boat owners. Delivery was faster than anticipated, and customer communication throughout the process was clear and professional. The packaging was secure and everything arrived in perfect condition without any scratches or missing parts. Noise levels are lower than I expected for this class of engine, which makes cruising much more comfortable. I recently purchased the Outboard Engine and the overall experience has been excellent from start to finish.
Jonathan Moore140 –
Delivery was faster than anticipated, and customer communication throughout the process was clear and professional. Overall, I am very satisfied with this purchase and would confidently recommend it to other boat owners. After several trips out on the water, I can say the engine performs steadily even in slightly rough conditions. The packaging was secure and everything arrived in perfect condition without any scratches or missing parts. Fuel efficiency has been impressive, especially during longer fishing trips and weekend outings. Installation was straightforward, and the engine mounted smoothly onto my boat without any complications. I recently purchased the Outboard Engine and the overall experience has been excellent from start to finish.
Charles Williams141 –
Fuel efficiency has been impressive, especially during longer fishing trips and weekend outings. Delivery was faster than anticipated, and customer communication throughout the process was clear and professional. Startup is quick and reliable, and the throttle response feels strong and consistent on the water. After several trips out on the water, I can say the engine performs steadily even in slightly rough conditions. Installation was straightforward, and the engine mounted smoothly onto my boat without any complications. Noise levels are lower than I expected for this class of engine, which makes cruising much more comfortable. I recently purchased the Outboard Engine and the overall experience has been excellent from start to finish.
Paul Wilson142 –
Startup is quick and reliable, and the throttle response feels strong and consistent on the water. I recently purchased the Outboard Engine and the overall experience has been excellent from start to finish. Overall, I am very satisfied with this purchase and would confidently recommend it to other boat owners. After several trips out on the water, I can say the engine performs steadily even in slightly rough conditions. Fuel efficiency has been impressive, especially during longer fishing trips and weekend outings. The build quality feels solid and durable, giving me confidence for long-term performance. The packaging was secure and everything arrived in perfect condition without any scratches or missing parts.
Eric Wilson143 –
After several trips out on the water, I can say the engine performs steadily even in slightly rough conditions. The build quality feels solid and durable, giving me confidence for long-term performance. Startup is quick and reliable, and the throttle response feels strong and consistent on the water. The packaging was secure and everything arrived in perfect condition without any scratches or missing parts. Installation was straightforward, and the engine mounted smoothly onto my boat without any complications. Delivery was faster than anticipated, and customer communication throughout the process was clear and professional. Noise levels are lower than I expected for this class of engine, which makes cruising much more comfortable.
Kevin Jackson144 –
Startup is quick and reliable, and the throttle response feels strong and consistent on the water. Installation was straightforward, and the engine mounted smoothly onto my boat without any complications. After several trips out on the water, I can say the engine performs steadily even in slightly rough conditions. The packaging was secure and everything arrived in perfect condition without any scratches or missing parts. The build quality feels solid and durable, giving me confidence for long-term performance. I recently purchased the Outboard Engine and the overall experience has been excellent from start to finish. Noise levels are lower than I expected for this class of engine, which makes cruising much more comfortable.