fits make: Honda.

( Manufacturer Part Number: 31600-KAB-901 )
The Honda 31600-KAB-901 JDM is a high-performance lawn mower engine specifically designed for the Japanese domestic market. This engine is a 4-stroke, OHV (Over Head Valve) design, which ensures efficient combustion and quiet operation. It has a displacement of 163 cc (Cubic Centimeters) and a bore and stroke measurement of 67.2mm x 66.6mm (2.65 inches x 2.62 inches).
The Honda 31600-KAB-901 JDM engine features a single-cylinder design, which is lightweight yet powerful. It has a compression ratio of 9.3:1, which allows for optimal power output while maintaining fuel efficiency. The engine is equipped with a forged piston and a chrome-plated cylinder liner, ensuring durability and long-lasting performance.
The engine comes with an electronic fuel injection (EFI) system, which provides precise fuel delivery for efficient combustion and reduced emissions. It also features an automatic decompression system, which simplifies starting and reduces the effort required to pull the recoil starter rope.
The Honda 31600-KAB-901 JDM engine has a maximum power output of 7.3HP (5.4 kW) at 5,500 RPM and a maximum torque of 11.8 Nm (1.19 kg-m) at 4,000 RPM. It has a cooling system that consists of a liquid-cooled radiator, which maintains optimal engine temperature for reliable operation.
The engine is also equipped with a multi-point lubrication system, which ensures that all moving parts are properly lubricated for extended engine life. The engine comes with a standard 12-month warranty, and replacement parts are readily available from Honda dealers.
In summary, the Honda 31600-KAB-901 JDM engine is a high-performance, reliable, and efficient engine designed specifically for the Japanese domestic market. Its 4-stroke, OHV design, single-cylinder architecture, and electronic fuel injection system make it a popular choice for lawn mower and garden equipment manufacturers. Its features such as a forged piston, chrome-plated cylinder liner, automatic decompression system, and multi-point lubrication system ensure long-lasting performance and durability.
The Honda GX390 and the Honda GXV390 are two popular engines from Honda's extensive lineup, often considered for various off-road and power equipment applications. While both engines have their unique features, it is essential to understand their differences to make an informed decision. In this comparison, we will discuss the key pros and cons of each engine, followed by a conclusion and a recommendation.
Honda GX390: Pros:1. Smaller size and lighter weight (59.3 lbs) compared to GXV390, making it easier to transport and maneuver.
2. Well-suited for applications requiring frequent throttle adjustments, such as tillers and generators.
3. OHC design provides better performance and fuel efficiency.
4. Quiet operation, making it suitable for residential applications.
Cons:1. Lower power output (12.7 hp) than GXV390 (16.1 hp).
2. Less torque (12.7 lb-ft) than GXV390 (16.2 lb-ft).
3. May struggle with heavy-duty tasks, such as heavy-duty mowers or log splitters.
Honda GXV390: Pros:1. Higher power output (16.1 hp) and torque (16.2 lb-ft) compared to GX390, making it better suited for heavy-duty applications.
2. V-twin design provides more power and torque at lower RPMs.
3. Wider mounting base for increased stability.
4. Air-cooled design allows for easier installation and maintenance.
Cons:1. Heavier (76.6 lbs) and larger size than GX390.
2. More expensive than GX390.
3. Louder operation than OHC engines like GX390.
Conclusion:Both engines have their unique advantages and disadvantages. If you are looking for a lightweight engine for residential applications or equipment requiring frequent throttle adjustments, the Honda GX390 would be an excellent choice. However, for heavy-duty applications, the Honda GXV390's higher power output and torque make it the more desirable option.
Recommendation:Based on the comparison, we recommend the Honda GXV390 for heavy-duty tasks, such as powering heavy-duty mowers, log splitters, or pump jacks. However, if you are looking for a lightweight engine for residential applications or equipment requiring frequent throttle adjustments, the Honda GX390 would be a better fit.
Therefore, carefully consider your specific application requirements before making a decision between the Honda GX390 and Honda GXV390.