YAMAHA 4EX-11631-00-A0 Piston Ahrma

( Manufacturer Part Number: 4EX-11631-00-A0 ), ( Engine Type: 2-stroke ), ( Type: Piston ), ( Machine Type: Dual Sport Motorcycle, Off-road Motorcycle ), ( Material: Aluminum Alloy, Steel ), ( Vintage Part: Yes ), ( Country/region Of Manufacture: Japan )

Review YAMAHA Factory Piston Vintage Ahrma fits YZ125 1993

The Yamaha YZ125 piston, part number 4EX-11631-00-A0, is a high-performance replacement piston specifically designed for the 1993 Yamaha YZ125 motorcycle. This piston is engineered to deliver exceptional power and reliability for riders who demand the best from their off-road bikes.

The piston is constructed from forged aluminum alloy, providing superior strength and durability. Its compact design helps to reduce weight and enhance engine performance, contributing to quicker acceleration and improved top-end power. The piston crown features a polished finish, which not only looks great but also reduces friction, allowing for smoother engine operation and increased efficiency.

The piston ring package includes a compression ring, an oil control ring, and a skirt oil scraper ring. These rings are precision machined to ensure a tight seal and optimal compression, ensuring consistent engine performance. The rings also have a chrome molybdenum coating, which provides excellent wear resistance and reduces the risk of ring groove scuffing.

This piston is designed to meet the demanding requirements of the American Historic Racing Motorcycle Association (AHRMA) and is suitable for use in vintage racing applications. It is important to note that this piston is intended for off-road use only and should not be used in street applications.

When installing this piston, it is recommended to use a professional mechanic or follow the instructions provided in the owner's manual carefully to ensure proper installation and alignment. Proper installation is crucial to ensure the longevity and optimal performance of the piston and engine.

In summary, the Yamaha YZ125 piston, part number 4EX-11631-00-A0, is a high-quality replacement piston designed for the 1993 Yamaha YZ125 motorcycle. Its forged aluminum alloy construction, compact design, and precision-machined rings make it an excellent choice for riders seeking improved power and reliability for their off-road riding needs.

Pros and Cons of Buying a Yamaha YZ125 1993 Piston (Yamaha 4EX-11631-00-A0) for AHRMA Racing

The Yamaha YZ125 1993 piston, model number Yamaha 4EX-11631-00-A0, is a popular choice among vintage and historic motorcycle racers competing in the American Historic Racing Motorcycle Association (AHRMA). This piston is known for its reliability, power, and authenticity. In this analysis, we will discuss the pros and cons of purchasing this piston for racing in AHRMA events.

1. Authenticity: This piston is an original OEM (Original Equipment Manufacturer) part, which is essential for maintaining the authenticity of vintage motorcycles.

2. Power: The 1993 Yamaha YZ125 piston is known for its powerful performance. It can provide an increase in horsepower and torque, enhancing the overall racing experience.

3. Durability: Yamaha's reputation for high-quality manufacturing ensures that this piston is durable and long-lasting, reducing the need for frequent replacements.

4. Consistency: OEM parts like this piston ensure that the engine components are consistent, which is crucial for maintaining the balance and performance of the vintage motorcycle.

1. Cost: OEM parts, especially for vintage motorcycles, can be more expensive compared to aftermarket alternatives.

2. Availability: Due to the popularity of the Yamaha YZ125 and the fact that it's a vintage model, availability for this specific piston can be limited.

3. Fitment: Ensure that the piston is a perfect fit for your specific motorcycle model, as different years and variations may have slight differences in engine specifications.

The Yamaha 4EX-11631-00-A0 piston is an excellent investment for AHRMA racers who prioritize authenticity, performance, and durability. Its powerful output and long-lasting design make it a popular choice among vintage motorcycle enthusiasts. However, the higher cost and potential limited availability may be a drawback for some racers. To mitigate this, consider purchasing the piston from reputable dealers or suppliers to ensure its authenticity and availability.

For AHRMA racers who value authenticity and performance, the Yamaha 4EX-11631-00-A0 piston is a solid investment. It's essential to ensure a perfect fit for your specific motorcycle model and research reputable dealers to secure the best price and availability. The benefits of using an original OEM piston, such as increased performance and long-lasting design, are well worth the investment for those who are committed to their vintage racing endeavors.

Details:

Please e-mail with questions. FOR ONLY 44.95. Not for the avg. NLA FROM YAMAHA, THESE ARE ALMOST NON-EXISTING AND RARELY OFFERED IN 1 PERFECT PIECE LIKE THIS.

PARTS SEARCH RESULTS: ASSEMBLIES WHERE IS USED,: Yamaha 1993 YZ125. LOL Do your homework. As is and shown with no factory warranty on it. If you are that person, salivating like hell right now.

Yes to shipping and handling 48 states. Joe, but someone who loves and races or restores these bikes. Sorry, no zero buyers. You know you've found a deal where saving money comes easily.

Still in factory wrapping, UNLIKE OTHER CHINESE JUNK KITS, OURS ALSO INCLUDES THE TOP END BEARING, A MUST TO REPLACE WHEN DOING CHANGE, COMES WITH EVERYTHING PICTURED. You don't see this everyday. THIS has not seen daylight for a long time.

part #: 4ex1163100a0 prices

• $44.95-$68.99

specifications pistondon:

• for models: Yz125
• for makes: Yamaha
• for years: 1993
• mpn: 4ex-11631-00-a0
• engine type: 2-stroke
• type: Piston
• machine type: Dual Sport Motorcycle, Off-road Motorcycle
• material: Aluminum Alloy, Steel
• vintage part: Yes
• country/region of manufacture: Japan

seller pistondon:

• rating: 99.5%
• city: Appleton, Wisconsin
• # reviews: 7199

offer pistondon:

• availability: In Stock
• quantity: 1
• started: February 10, 2025
• sold: 0
• options: Ship-to-home

returns pistondon:

• policy: No Returns

general pistondon:

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

payments pistondon:

• cash
• credit card: Discover
• other
• wallet: Paypal

shipping pistondon:

• class: Economy
• service: Economy
• cost: $6.95
• transit: 4-11 Days
• type: Fixed

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