fits make: Johnson. year: 1970–1977.

( Manufacturer Part Number: 0581251 ), ( Part Type: Hp Timer Sensor )
The Johnson Outboards 70 HP Timer Base Sensor (Model: 0581251 1977) is a vital component for the smooth operation of your marine engine. This sensor is designed specifically for Johnson Outboard engines and is an essential part of the engine's ignition system.
The Timer Base Sensor is a digital device that provides precise and reliable data to the engine control unit (ECU). It measures the engine's crankshaft position, which is crucial for ignition timing, fuel injection, and other engine management functions. The sensor operates by detecting the magnetic field generated by the crankshaft, converting this information into electrical signals, and transmitting it to the ECU.
The sensor is built to withstand the harsh marine environment. It is made of high-quality materials that are resistant to corrosion, saltwater, and UV rays. The sensor housing is made of durable plastic, while the sensor itself is a reliable magnetic pickup. The sensor is also designed to operate under extreme temperatures, ensuring reliable performance in all weather conditions.
Installing the 0581251 1977 Johnson Outboard Timer Base Sensor is a straightforward process. It is designed to mount directly onto the engine's crankshaft, and it comes with all necessary mounting hardware. The sensor is connected to the engine control unit via a wiring harness, which is also included in the package.
In summary, the Johnson Outboards 70 HP Timer Base Sensor (Model: 0581251 1977) is an essential component for the proper functioning of your marine engine. It provides precise and reliable crankshaft position data to the engine control unit, ensuring optimal ignition timing, fuel injection, and other engine management functions. The sensor is built to withstand the harsh marine environment and is easy to install. If you are in need of a reliable and high-quality Timer Base Sensor for your Johnson Outboard engine, the 0581251 1977 model is an excellent choice.
Pros of buying a 1977 Johnson Outboard 70 HP Timer Base Sensor (0581251):1. Powerful: With a 70 HP engine, this outboard motor provides sufficient power for medium to large-sized boats.
2. Reliable: Johnson Outboards have a reputation for being reliable and durable, with many models still in operation decades after they were first manufactured.
3. Timing Base Sensor: The inclusion of a timing base sensor can help improve engine performance and efficiency, as well as make it easier to diagnose and fix any issues that may arise.
4. Affordable: Compared to newer models, this 1977 outboard motor may be more affordable, making it an attractive option for budget-conscious boat owners.
Cons of buying a 1977 Johnson Outboard 70 HP Timer Base Sensor (0581251):1. Age: As a 1977 model, this outboard motor may have worn-out parts or require more frequent maintenance than newer models.
2. Availability of parts: Due to its age, it may be more difficult to find replacement parts for this outboard motor, which could lead to longer downtime if repairs are needed.
3. Compatibility with modern boats: This outboard motor may not be compatible with modern boats that require newer technology or specific mounting configurations.
4. Limited features: Compared to newer outboard motors, this 1977 model may lack modern features such as digital displays, fuel injection, and advanced diagnostics.
Conclusion: The 1977 Johnson Outboard 70 HP Timer Base Sensor (0581251) is a reliable and powerful option for budget-conscious boat owners. However, its age may result in more frequent maintenance and potential compatibility issues with modern boats. It is recommended to thoroughly inspect the outboard motor before purchasing, and to research the availability of replacement parts to ensure that repairs can be made easily and affordably. Additionally, it may be worth considering a newer model with modern features and technology to ensure optimal performance and reliability.
Any known problems will have a picture.
I take lots of pictures each item.
However, most parts fit more than one motor.
Items are usually shipped the same day of purchase if bought early enough, or next business.
The outboard part came off of following motor.
These are used parts, so there may be some scratches.
It is just my wife and I running this business.
About me I have a parts business that is growing everyday. I have a lot of inventory that may not be listed yet.
This is a used part. I am pretty knowledgeable about these outboard motors.