YAMAHA 284-11635-00-00 Nos Piston Ring .25 RT1MXN U7E

( Engine Type: 2-stroke ), ( Type: Piston Set ), ( Oe/oem Part Number: 284-11635-00, 284-11611-10 ), ( Country Of Origin: Japan ), ( UPC: 284116350000 )

Review YAMAHA Nos Piston And Ring .25 Rt1m U7e fits 1970–1971

Yamaha RT1M/RT1MXN U7E 25mm NOS Piston Rings (Yamaha Part Numbers: 284-11635-00-00)

These piston rings are original equipment manufactured (OEM) replacement parts for Yamaha RT1M and RT1MXN motorcycles with engine type U7E and piston diameter 25mm. The rings are new old stock (NOS), meaning they have been stored in original packaging and have not been used before.

The piston rings are designed to provide a tight seal between the piston and cylinder wall, ensuring optimal engine performance. They help to prevent fuel, oil, and combustion gases from leaking out of the engine and improve overall efficiency.

1. Compression Ring: This is the top ring that seals the combustion chamber and helps to compress the air-fuel mixture during the compression stroke.

2. Oil Control Ring: This ring is located below the compression ring and helps to control oil consumption by preventing oil from leaking past the piston.

3. Groove Ring: This ring is located at the bottom of the piston ring set and helps to prevent the piston from contacting the cylinder wall directly, reducing wear and tear on both components.

The piston rings are precision-manufactured to meet the high standards of Yamaha and are made of high-quality materials that provide excellent durability and performance. They are also designed to fit perfectly in the piston grooves of the engine, ensuring a smooth and efficient operation.

Installing these piston rings requires some mechanical knowledge and experience, and it is recommended that the installation be done by a professional mechanic or someone with extensive experience working on motorcycles. Improper installation can lead to engine damage and reduced performance.

These Yamaha RT1M/RT1MXN U7E 25mm NOS Piston Rings are an excellent choice for those who want to restore their classic motorcycles to their original condition or for those who want to ensure optimal engine performance. They are a direct replacement for the original piston rings and come with the peace of mind that they are new, unused parts.

The Yamaha 284-11635-00-00 NOS (New Old Stock) piston ring is a replacement part designed for Yamaha RT1M and RT1MXN motorcycles manufactured in 1970 and 1971, with engine type U7E. Here are some pros and cons that can help you make an informed decision about purchasing this piston ring.

1. Original Equipment: This piston ring is a NOS part, which means it is an original equipment manufactured (OEM) part. This ensures that the piston ring is an exact fit and matches the original specifications of the motorcycle.

2. High-Quality Material: The piston ring is made of high-quality materials, ensuring durability and reliability. This can help extend the lifespan of the engine and improve its performance.

3. Reduces Engine Wear: A worn-out piston ring can cause engine damage, leading to costly repairs. By replacing the piston ring with a new one, you can reduce the wear and tear on the engine and prevent potential damage.

1. Cost: Replacement parts, especially OEM ones, can be expensive. The cost of this piston ring may be a significant investment for some motorcycle owners.

2. Installation: Installing a piston ring can be a complex and time-consuming process. It may require specialized tools and technical expertise.

3. Availability: NOS parts may not be readily available, and it may take some time to source and purchase them.

If you own a Yamaha RT1M or RT1MXN motorcycle manufactured in 1970 or 1971, with engine type U7E, and you're experiencing issues with the piston ring, then purchasing the Yamaha 284-11635-00-00 NOS piston ring may be a worthwhile investment. The benefits of using an OEM part, such as a perfect fit and high-quality materials, can help improve the performance and reliability of your motorcycle engine. However, the cost, installation complexity, and availability of the part should be carefully considered before making a purchase.

If you're confident in your technical skills and have the necessary tools, you may consider installing the piston ring yourself to save on labor costs. Alternatively, you can consult with a professional mechanic to determine if the piston ring is the root cause of your engine issues and explore other cost-effective repair options. Ultimately, the decision to purchase the Yamaha 284-11635-00-00 NOS piston ring depends on the severity of your engine problems, your budget, and your level of technical expertise.

Details:

3 x NOS Piston Ring.25 - Yamaha 1970 RT1M, 1971 RT1MX Piston: 284-11635-00 Ring: 284-11611-10, $ 19.95 each 3, 1 set Rings.50, 2nd Over Yamaha, U7E, YG1T, YG1TK, MG1T 298-11636-60, $34.95 x1, This is from vintage OEM dealer stock. GLOBAL SHIPPING AVAILABLE !!, Bazooka Garage ships WORLDWIDE via US Postal Service. Bazooka Garage will provide discounts on shipping when more than one item is purchased and shipped to the same address.

part #: 284116350000 prices

• $25.95-$45.95

specifications pistondon:

• for makes: Yamaha
• for years: 1970-1971
• engine type: 2-stroke
• type: Piston Set
• oe/oem part number: 284-11635-00, 284-11611-10
• country of origin: Japan
• upc: 284116350000

shipping pistondon:

• service: USPS Ground Advantage
• transit: 4-9 Days
• cost: $15.20
• class: Standard
• type: Calculated
• carrier: USPS

general pistondon:

• Motorcycle Scooter Parts Accessories > Engines Engine Parts > Pistons, Rings Piston Kits
• condition: New

payments pistondon:

• other
• credit card: Mastercard
• wallet: Apple-pay

offer pistondon:

• sold: 0
• options: Ship-to-home
• started: March 5, 2026
• availability: In Stock
• quantity: 1

seller pistondon:

• city: White Salmon, Washington
• rating: 100.0%
• # reviews: 11111

returns pistondon:

• policy: Returns Accepted
• time: 30 Days
• paid by: Seller

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