fits make: Yamaha.

( Manufacturer Part Number: 878430 ), ( Part Type: Ecu Cylinder )
The Yamaha 878430 F40HP CDI ECU Cylinder is a high-performance marine engine component designed for optimal power and reliability. This cylinder is part of Yamaha's F40HP outboard engine, which is renowned for its durability, efficiency, and exceptional performance.
The cylinder is made from premium materials, ensuring it can withstand the rigors of marine use. It features a modern CDI (Capacitor Discharge Ignition) ECU (Electronic Control Unit) that delivers precise ignition timing for optimal combustion. This results in improved fuel efficiency, reduced emissions, and increased power output.
The cylinder has a bore and stroke of 85mm x 78mm, providing a displacement of 3.4L (3400cc). This size engine is designed to provide ample power for medium-sized boats, delivering a maximum horsepower of 40HP. The cylinder is also compatible with unleaded fuel, making it a convenient and cost-effective choice for boat owners.
The cylinder is designed with a high-performance piston and ring package, ensuring reliable operation and minimal wear and tear. It also features a durable cast iron cylinder head, which helps to dissipate heat effectively, maintaining optimal engine temperature.
Installation of the cylinder is straightforward, with clear instructions provided in the installation manual. The cylinder is also backed by Yamaha's reputation for quality and customer service, ensuring you can trust in its performance and reliability.
In summary, the Yamaha 878430 F40HP CDI ECU Cylinder is a high-performance marine engine component that delivers power, reliability, and efficiency. Its advanced CDI ECU system, high-performance piston and ring package, and durable cast iron cylinder head make it a top choice for boat owners who demand the best from their engines.
Pros of buying Yamaha 878430 F40HP CDI ECU Cylinder:1. Reliable and Powerful: Yamaha is a renowned brand known for its durable and powerful engines. This cylinder is no exception, offering a 40HP output, making it an excellent choice for high-performance applications.
2. CDI (Capacitor Discharge Ignition) System: This system improves the ignition performance, resulting in better fuel efficiency and increased power output.
3. Easily Available Replacement Part: If any issues arise, the cylinder is easily replaceable, reducing downtime and maintenance costs.
4. Fits a Wide Range of Models: The 878430 cylinder is compatible with various Yamaha models, making it a versatile option.
Cons of buying Yamaha 878430 F40HP CDI ECU Cylinder:1. Higher Price Point: Compared to some alternative options, the Yamaha cylinder may have a higher price tag, which can be a deterrent for budget-conscious buyers.
2. Requires Professional Installation: While the cylinder itself is easy to replace, the CDI system may require professional installation, which could add to the overall cost.
Ending Conclusion:The Yamaha 878430 F40HP CDI ECU Cylinder is a reliable and powerful choice for those seeking high-performance applications. Its CDI system improves ignition performance and fuel efficiency, while its compatibility with various models makes it versatile. However, its higher price point and potential need for professional installation could be drawbacks for some buyers. Ultimately, the decision to purchase this cylinder should be based on individual needs, preferences, and budget constraints.
Recommendation:If you are in need of a high-performance cylinder and have the budget to accommodate its price, the Yamaha 878430 F40HP CDI ECU Cylinder is a solid choice. It offers reliable power and improved ignition performance, making it a worthy investment for boat owners and enthusiasts. However, if budget is a concern, consider exploring alternative options that may offer similar performance at a lower price point.
The pins are nice and clean. This unit was tested at time of removal and it functioning as should. This unit was pulled from a running motor that lost compression in cylinder and is being sold parts.