fits model: Yz125, Yz, 125. make: Yamaha. year: 1982–1984.

( Manufacturer Part Number: 5X4-1131A-00-00 ), ( Part Type: Valve ), ( Surface Finish: New ), ( Placement On Vehicle: Left ), ( Country/region Of Manufacture: Japan )
The 5x4-1131a-00-00 82 84 Yamaha YZ125 YZ 125 NO SPARK PLUG POWER VALVE is a replacement part specifically designed for the Yamaha YZ125 model years 1982 and 1984. This power valve is an essential component of the engine's ignition system, responsible for controlling the timing and amount of fuel and air mixture that enters the engine cylinder.
This power valve is meticulously crafted to fit perfectly into your YZ125's engine, ensuring a seamless integration with your existing engine components. It is made from high-quality materials, ensuring durability and reliability, even under the most demanding racing conditions. The NO SPARK PLUG design means that this power valve does not require a spark plug, making it a convenient and straightforward replacement option.
Installing this power valve is a straightforward process, requiring only basic tools and a few minutes of your time. The included installation instructions provide clear, step-by-step guidance to help you complete the job quickly and confidently. By replacing your old or damaged power valve with this high-quality replacement, you can restore your YZ125's performance and ensure that it continues to run smoothly and efficiently for years to come.
In summary, the 5x4-1131a-00-00 82 84 Yamaha YZ125 YZ 125 NO SPARK PLUG POWER VALVE is a high-quality replacement part designed to fit perfectly into your YZ125 engine. Its NO SPARK PLUG design makes it a convenient and straightforward replacement option, and its durable construction ensures reliability and longevity. Whether you're a seasoned racer or a casual weekend rider, this power valve is an essential tool to keep your YZ125 running at its best.
Pros of buying (5x4-1431a-00-00 82 84 Yamaha YZ125 YZ 125 NO SP Power Valve):1. Replacement Part: This is a replacement power valve for the Yamaha YZ125, which can help extend the life of your bike or fix an issue with the existing power valve.
2. Compatibility: The part is specifically designed for the 1982-1984 YZ125 models, ensuring a perfect fit.
3. OEM Quality: The part is an Original Equipment Manufacturer (OEM) replacement, meaning it is made by Yamaha or an authorized supplier, ensuring the same high-quality as the original part.
4. Cost-Effective: Replacing the power valve with a new one can be more cost-effective than repairing or replacing the entire engine, especially if the issue is just with the power valve.
Cons of buying (5x4-1431a-00-00 82 84 Yamaha YZ125 YZ 125 NO SP Power Valve):1. Cost: While replacing the power valve is more cost-effective than replacing the entire engine, it can still be a significant expense, especially if you are not mechanically inclined and need to pay a professional to install it.
2. Availability: Depending on where you live, finding this specific part may be challenging, and it may take some time for the part to be shipped to you.
3. DIY Installation: If you choose to install the part yourself, you may need to purchase additional tools or have some mechanical knowledge to ensure the installation is done correctly.
Conclusion:Buying the (5x4-1431a-00-00 82 84 Yamaha YZ125 YZ 125 NO SP Power Valve) can be a great investment for those looking to extend the life of their Yamaha YZ125 or fix an issue with the existing power valve. The part is an OEM replacement, ensuring the same high-quality as the original part, and is specifically designed for the 1982-1984 YZ125 models, ensuring a perfect fit. However, it can be an expensive investment, and finding the part may be challenging depending on where you live. If you are mechanically inclined, installing the part yourself can save you money, but it may require additional tools or knowledge. Ultimately, the decision to buy the part depends on your budget, mechanical skills, and the condition of your bike.
Recommendation:If you are experiencing issues with your Yamaha YZ125 power valve and are considering replacing it, I would recommend buying the (5x4-1431a-00-00 82 84 Yamaha YZ125 YZ 125 NO SP Power Valve). However, I would recommend doing some research to ensure the part is available in your area and is within your budget. Additionally, if you are not mechanically inclined, I would recommend hiring a professional to install the part to ensure it is done correctly. Overall, this replacement power valve can help extend the life of your bike and improve its performance, making it a worthwhile investment for many Yamaha YZ125 owners.
I have researched this and believe to be the original left hand actuated 125 power valve.
It is obsolete and no longer available. After 84, the valves were operated from right side.
81 when it was available. It was still in the wrapper, and only numbers I can see on part number label is - -131a-00. This listing is for a brand new power valve designed to fit the 1982 thru 84 Yamaha YZ125. This is a critical wear part and would be awesome for restoration project.