fits model: Sr185, Sr185h. make: Yamaha. year: 1981–1982.

( Manufacturer Part Number: 4WP-81890-00-00 ), ( Type: Starter Motor )
The Yamaha 4WP-81890-00-00 is a high-performance starter motor and exciter designed specifically for use with the SR185 engine models found in select Yamaha watercrafts from 1981 and 1982. This integral starter and exciter system is a crucial component for starting the engine and providing auxiliary power for charging the battery and keeping essential electrical systems functioning.
Design and Construction:The 4WP-81890-00-00 starter motor is engineered with a durable cast iron housing that protects its internal components from environmental elements. The compact design offers excellent balance and minimizes weight, contributing to optimal engine performance and maneuverability. The motor uses a permanent magnet, seven-pole design, which provides robust starting power even in cold weather conditions.
Starting Performance:The Yamaha SR185 starter motor boasts a high torque output, enabling swift engine cranking for reliable starting with minimal effort. It includes a high-capacity, regulated solenoid that helps ensure a consistent electrical connection, contributing to smooth and successful engine starting each time. The starter motor is also equipped with overload protection and a built-in thermal switch, safeguarding against potential damage from repeated overloading or overheating.
Exciter Function:The integrated exciter function of the 4WP-81890-00-00 ensures sufficient electrical power is supplied to the engine and auxiliary systems. The exciter uses a brush-type design, which delivers both efficient power transfer and long-lasting durability. It is engineered to maintain a stable output voltage over a wide range of engine speeds, ensuring proper charging of the battery and reliable operation of essential electrical components.
Ease of Installation:The Yamaha SR185 starter motor is a direct replacement for the original equipment, simplifying the installation process. The motor fits securely into the stock mounting location on the watercraft, making it an excellent choice for DIY enthusiasts and professional technicians. Additionally, the starter motor comes complete with necessary mounting hardware, making it a convenient, one-stop-shop solution for gaining maximum performance from your SR185-powered watercraft.
Reliability and Customer Support:The 4WP-81890-00-00 Yamaha SR185 starter motor is backed by distinguished aftermarket manufacturers, assuring high-quality and dependability. Additionally, the company offers available technical assistance and replacement parts, providing long-lasting support to customers seeking satisfying solutions to upgrade their watercraft's starting performance and electrical capabilities.
Conclusion:Upgrading or maintaining your Yamaha SR185 engine with the 4WP-81890-00-00 starter motor grants several benefits including enhanced starting power, robust construction, reliable electrical support, and convenient installation. Boost your watercraft's performance, reliability, and peace of mind by choosing this exceptional, OEM-equivalent component from a trusted aftermarket manufacturer.
When in need of a replacement starter motor for a Yamaha SR185 engine, the Yamaha 4WP-81890-00-00 model is a common option. Let's consider its advantages and disadvantages to help you make an informed decision.
Pros:1. OEM Compatibility: This starter motor is an original equipment manufacturer (OEM) part, meaning it's specifically designed for Yamaha SR185 engines. Using an OEM part ensures that the fit and function are optimal.
2. High Durability: This starter motor is built with robust materials to withstand the rigors of regular use. Its reliable construction can save you the costs and inconvenience of frequent replacements.
3. Powerful Performance: The Yamaha SR185 starter motor is known to deliver robust starting power, ensuring quick engine cranking and enhanced overall performance.
Cons:1. Cost: The OEM starter motor might be pricier than some aftermarket alternatives. However, the higher cost can be justified by its reliability, power output, and compatibility with your engine.
2. Availability: Depending on your location, finding this OEM starter motor might be more challenging compared to aftermarket options. In such cases, aftermarket alternatives may be more readily available and convenient.
3. Installation Complexity: While installation won't present insurmountable challenges, it may take a little longer and require additional tools compared to some aftermarket options that might have more straightforward installations.
Conclusion:The Yamaha 4WP-81890-00-00 starter motor is an excellent choice for those who value OEM compatibility, durability, and powerful performance. Despite its higher cost and potential availability challenges, the benefits usually outweigh the drawbacks. For motorists who frequently use their Yamaha SR185 engine or demand uncompromising starting reliability, this starter motor is definitely worth considering.
Recommendation:If you're seeking a replacement starter motor for your Yamaha SR185 engine, the OEM Yamaha 4WP-81890-00-00 starter motor is an excellent option to ensure optimal fit, durability, and performance. Considering the benefits it offers, both in the long run and in terms of engine efficiency, investing in this starter motor is generally a sound decision for avid users of the Yamaha SR185 model.
1981 - 1982 Yamaha SR185 Starter Motor Vintage SR185H SR 185 Exciter. Any questions. Tested and working. Pt# 4WP-81890-00-00.