6M6-13621-A1

Introducing the Yamaha 6M6-13621-A1 Reed Valve Gasket, a crucial component for the maintenance and optimal performance of select Yamaha motorcycles from the 1990 to 1995 model years. This gasket is specifically designed for use with the SJ650, WR650, WRA650, and WRB650 models.

Measuring in at approximately 63.5mm in diameter and 58.5mm in width, this gasket is engineered from high-quality materials to ensure a perfect seal for your engine's reed valves. Its thickness is meticulously calculated to provide the ideal amount of compression and seal integrity, allowing for efficient airflow into the engine and optimal combustion.

Each gasket is meticulously manufactured to precise specifications, ensuring a snug and secure fit for your motorcycle's reed valve assembly. The gasket material is resilient and able to withstand the rigors of continuous use and the harsh conditions found in various weather and riding environments.

Installing the gasket is a straightforward process, requiring no specialized tools or extensive mechanical knowledge. Simply remove the old gasket, clean the surface of any debris, and carefully place the new gasket in its proper position. Once the reed valve assembly is reinstalled, your motorcycle will be ready to return to the road, providing you with the reliable and responsive performance you've come to expect from Yamaha.

By choosing the Yamaha 6M6-13621-A1 Reed Valve Gasket, you're investing in the longevity and overall health of your motorcycle. This gasket is a vital component in maintaining the proper functioning of your engine, ensuring that it continues to deliver the power and performance you desire. Don't compromise the performance and longevity of your Yamaha motorcycle trust the experts at Yamaha to provide you with the highest quality replacement parts.

Reed Valve Gasket Replacement for Yamaha SJ650, WR650, WRA650, and WRB650 (1990-1995) - Pros, Cons, and Conclusion

The Yamaha SJ650, WR650, WRA650, and WRB650 motorcycles, manufactured between 1990 and 1995, are known for their reliability and off-road capabilities. However, their age may cause issues with the reed valve gaskets. In this article, we will discuss the pros and cons of buying a new reed valve gasket for these motorcycles, along with a conclusion and recommendation.

1. Improved engine performance: A new gasket can help eliminate leaks, leading to improved engine performance, better fuel efficiency, and increased power.

2. Prevents further damage: Leaking gaskets can cause engine damage over time. Replacing the gasket promptly can prevent costly repairs and engine issues in the future.

3. Enhanced reliability: A new gasket ensures a proper seal between the engine and the carburetor, enhancing overall motorcycle reliability.

4. Easier maintenance: Fixing a leaking gasket is a straightforward task for most motorcycle enthusiasts, making it an affordable and accessible maintenance item.

1. Cost: The cost of a new reed valve gasket may be a concern for some riders, depending on their budget.

2. Availability: Finding a new gasket for older motorcycles can be challenging, as they may no longer be in production.

3. Installation time: While the installation process is relatively straightforward, it may still require some time and effort, depending on the rider's experience level.

The decision to buy a new reed valve gasket for a 1990-1995 Yamaha SJ650, WR650, WRA650, or WRB650 depends on various factors, including the rider's budget, availability, and personal preference for maintenance. While there are some cons to consider, the pros such as improved engine performance, prevention of further damage, enhanced reliability, and easier maintenance generally outweigh the cons.

If you own one of these motorcycles and suspect a leaking reed valve gasket, it is recommended to replace it as soon as possible. The benefits of a new gasket far outweigh the potential risks and costs. Consider sourcing the gasket from reputable suppliers or rebuilding the carburetor if a new gasket is unavailable. The investment in a new gasket will ultimately lead to a more enjoyable and reliable riding experience.

Details:

The image to watch on YouTube. Fits: fits 1990 -1993 Yamaha super jet SJ650 and various 650/700cc wave runner model's. A new genuine oem Yamaha reed valve gasket, sold as a quantity of two, for various 650cc and 700cc wave runner super jet model's. Yamaha cruisers.

Spotlight: a day inside . Ensures proper intake sealing for optimal engine performance.

specifications inboardfuel:

• for models: Sj650, Wr650
• for years: 1990–1995
• brand: Yamaha
• mpn: 6m6-13621-a1
• part type: Valve Gasket
• country of origin: United States
• manufacturer warranty: Unspecified Length
• storage location: B2 Tjc-n Buk 21

general inboardfuel:

• category: Boat Parts > Inboard Engines Components > Intake Fuel Systems

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• service: usps ground advantage, usps priority mail, fedex 2day, overnight
• type: fixed
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• city: odessa, florida
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• time: 30 days
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offer inboardfuel:

• best offers: true
• options: ship-to-home
• availability: in stock
• in stock #: 5
• started: november 29, 2025
• prices: $1.41–$38.18
• item condition:
  • New other (see details)
  • New
  • Used
• sold #: 17

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