What Is An Outboard Motor 25 HP 2 Stroke?
As one of the representative models in the Enduro series, the Outboard Motor 25 HP 2 Stroke E25B is popular among small and medium-sized vessels due to its simple structure, reliable power, and durability. Enduro emphasizes durability and practicality, balancing power output and durability, and is used in various types of vessels, including near-shore workboats, inland waterway transport vessels, and small recreational boats. Therefore, the E25B 25hp Yamaha outboard motor is also one of our best-selling models. If you are looking for a cost-effective two-stroke boat motor, this 25-horsepower model would be very suitable for you.
Key Specification Table
| Product Name | Outboard Motor 25 HP 2 Stroke |
| Product Type | 2 Stroke Boat Engine |
| Rated Power | 25HP |
| Engine Type | In-Line 2 |
| Displacement | 496CC |
|
Bore x Stroke |
72.0 x 61.0MM |
|
Fuel Induction System |
Carburetor |
|
Max. Prop Shaft Output |
18.4 (25) @5000 |
| Engine Transom Height | S: 423MM & L: 550MM |
| Dry Weight | 53-55KG |
| Starting System | Manual Starter |
| Controls | Tiller Handle |
| Tilt System | Manual Tilt |
| Lubrication System | Pre-Mixed Fuel And Oil |
| Fuel Type | Gasoline |
| Product Quality | 100% Tested |
|
Delivery |
Express & Air Freight & Sea Freight |
| Product Warranty | One Year 12 Months |
| We Support | OEM & ODM Services |
Product Advantages
The 25hp Yamaha outboard motor E25B boasts an astonishing single-engine service life, exceptional torque conversion efficiency, and an industrial-grade fatigue-resistant design. The cylinder walls utilize specially heat-treated wear-resistant alloy bushings, capable of withstanding over 10 hours of continuous operation per day. The crankshaft and connecting rod mechanism is redundantly reinforced to offset the instantaneous impact forces during high-load start-up. This design not only maintains extremely high cylinder pressure but also ensures sustained power output.
The Yamaha 25 hp engine E25B features a long-stroke piston layout, combined with scavenging technology, maximizing the expansion efficiency of every drop of the air-fuel mixture within the combustion chamber. Its robust thrust-to-weight ratio allows it to withstand heavy loads and maintain the vessel's sailing rhythm even in headwinds or against strong currents.
The 25 hp Yamaha enduro E25B possesses an almost obsessive defensive capability against harsh operating environments; it is incredibly robust. The water pumps and cooling channels have undergone dual reinforcement against sediment buildup and corrosion. The high-flow-rate pumps precisely deliver cooling water to the engine block core, and the multi-layered UV-resistant coating on the exterior ensures that even after years of outdoor exposure and immersion in corrosive liquids, the internal core components remain clean and new, significantly reducing unplanned downtime due to overheating or rust.
The 25 horsepower tiller motor E25B's advantage lies in the ease of maintenance brought about by its minimalist mechanical structure. It eliminates complex sensors and electronic adjustments, placing the carburetor and CDI ignition system in easily removable locations. Owners can restore the machine to optimal operating condition with simple cleaning and adjustments. Even in resource-scarce remote waters, the Yamaha 25 engine E25B possesses an unparalleled competitive advantage, truly ensuring uninterrupted productivity on the water.
Applicable Ship Types
The Yamaha Enduro 25hp E25B is a twin-cylinder, two-stroke engine with a displacement of approximately 496cc and a total weight of about 53-55 kg. It is best suited for:
• Small aluminum alloy boats approximately 12 to 16 feet in length. Two-stroke outboard motors are well-suited for shallow-draft boats. The 25 horsepower is just right, providing good initial gliding and cruising speed.
• Small fishing boats approximately 4 to 5 meters in length. Fishing boats frequently operate in coastal and inland waterways, making outboard motors with good fuel economy and reliability more suitable.
• Inflatable boats or rigid-bottomed inflatable boats (RIBs). Inflatable boats emphasize lightweight and maneuverability, making lightweight two-stroke outboard motors more suitable.
• Medium-sized agricultural harvesting or aquaculture auxiliary rafts approximately 4.5 meters in length. In modern aquaculture farms such as pearl farming and aquatic vegetable harvesting, operating rafts often need to frequently reverse and turn in congested waters filled with buoys and cables. The Yamaha 25 hp engine E25B's enhanced shift mechanism and responsive shift feel allow drivers to operate with ease in tight parking spaces. For farmers, this reduced workload translates directly to lower annual maintenance costs.
Product More Details
• External 24L fuel tank.
• Running with maximum throttle until fully refuelled can last approximately 3 hours.
• It comes in long and short versions.
• The ignition system is CDI.
Other Horsepower

Real Customer Reviews

Packaging And Delivery
| Packaging Detail | Standard Brand Packing & Neutral Packing & Customized Packing |
| Main Shipping Port | Shanghai Port & Ningbo Zhoushan Port & Shenzhen Port & Qingdao Port & Guangzhou Port |
Lead Time
|
Quantity (Units) |
1 - 1000 |
> 1000 |
|
Lead time (Days) |
25 |
To be negotiated |
About KLS Company

KLS Company is a supplier specializing in marine power equipment. Our main products include 2 stroke outboard motors, 4 stroke outboard motors, and outboard motor accessories. As a professional supplier, KLS Supplier not only provide high-quality outboard motor products, but also offers selection advice, technical support, and spare parts supply. Choosing KLS Manufacturer means choosing a technically savvy, trustworthy, and 24/7 professional technical partner. We are committed to helping every vessel navigate the waves efficiently with the most robust products and practical solutions.
Contact Us Now
If you want to know more about our Outboard Motor 25 HP 2 Stroke, don't hesitate to get in touch with us at email: Inquiry@klsautoparts.com.
FAQ
Q: What Can You Buy From KLS?
A: KLS is a trustworthy boat outboard motor & boat outboard engine supplier with 20+ years of industry experience. We offer boat motors of various horsepower and a wide range of boat engine parts.
Q: Why Should You Buy From KLS, Not From Other Suppliers?
A: Quality is of utmost importance. We always prioritize quality at the top. During the production process, we will conduct strict inspections on all products. All products must undergo 100% testing before being shipped from the factory to ensure high quality and adherence to strict standards.
Q: What Is The Delivery Period?
A: The sample order will take one week. For full container or consolidated container orders, it will take 3-4 weeks. For products in stock, we can ship the goods within 72 hours. After receiving the first payment, the goods will be ready for shipment within 25 days. The actual shipping time depends on the distance and transportation method, and it needs to be negotiated.
Q: Do You Support Color Customization?
A: Sure! If you can meet our minimum order quantity requirements, we will customize products specifically for you.
Q: Can Your Products Be Printed With Our Brand?
A: Of course! If you can meet our minimum order quantity, we can print your logo on the products and packaging for exclusive customization.
Q: What Are Your Terms Of Payment And Delivery?
A: Normally T/T. EXW & FOB & DDP.
