YAMAHA 64X-11604-00 Piston Ring Set 0.25

( Manufacturer Part Number: 64X-11604-00 ), ( Part Type: Ring Piston ), ( Country Of Origin: United States ), ( Manufacturer Warranty: Unspecified Length ), ( Storage Location: K6 Mot-n Buk 46 )

Review YAMAHA Oem Piston Ring Set 0.25 fits GP760 1997–2000

The **Yamaha GP760 Piston Ring Set (Part Number: 64X-11604-00, 0.25mm)** is a precision-engineered aftermarket component designed specifically for the iconic 1997 through 2000 Yamaha GP760 sportbike, a motorcycle renowned for its lightweight chassis, aggressive styling, and high-performance capabilities. This meticulously crafted piston ring kit is tailored to restore optimal engine efficiency, enhance compression, and minimize oil consumption critical factors for maintaining the GP760 s legendary reliability and responsiveness. Engineered from high-grade cast iron, the rings feature a **0.25mm thickness**, a dimension carefully calibrated to ensure a snug yet flexible fit within the cylinder walls of the GP760 s 752cc parallel-twin engine, which utilizes a single overhead camshaft (SOHC) and four valves per cylinder. The set includes a **compression ring**, a **scraper ring**, and a **oil control ring**, each serving a distinct yet complementary purpose to regulate combustion pressures, control oil flow, and prevent excessive wear on the cylinder bores. The compression ring is designed to maintain a tight seal during combustion, preventing blow-by and preserving peak power output, while the scraper ring efficiently clears excess oil from the cylinder walls, reducing friction and preventing carbon buildup. The oil control ring, meanwhile, regulates the oil film thickness, ensuring proper lubrication without excessive consumption a common issue in high-revving sportbikes like the GP760. This piston ring set is compatible with both stock and aftermarket cylinder bores, making it an ideal choice for restorations, performance upgrades, or routine maintenance. Whether you're preparing the GP760 for track use, restoring it to showroom condition, or simply extending its engine life, this ring set delivers the durability and performance required to keep the engine running at its best. Built to Yamaha s exacting standards, it offers a cost-effective solution for those seeking to avoid costly internal engine damage while maintaining the GP760 s signature blend of agility and power.

### Pros and Cons of buying a Yamaha GP760 Piston Ring Set (Part Number: 1997-2000 64X-11604-00, 0.25mm)

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1. **OEM Quality and Compatibility** This is an original Yamaha part, designed specifically for the GP760 engine. OEM components are engineered to meet the manufacturer s exact specifications, ensuring proper fit, performance, and longevity. Aftermarket rings may not match the original tolerances, potentially leading to issues like oil consumption or poor sealing.

2. **Reliability and Durability** Yamaha s piston rings are known for their durability, especially in high-performance or long-term applications. The 0.25mm thickness is standard for the GP760, meaning it aligns with the engine s original design, reducing the risk of premature wear or failure.

3. **Ease of Installation** Since it s an OEM part, the installation process is straightforward if you have basic mechanical skills. The rings are pre-machined to fit the GP760 s cylinder bore, eliminating the need for custom fitting or additional machining (unless the cylinders are worn).

4. **Performance Consistency** Using OEM rings ensures that the engine s compression and oil control remain consistent with the manufacturer s intent. This is particularly important for maintaining power output, fuel efficiency, and reducing blow-by.

5. **Warranty and Authenticity** Purchasing from a reputable dealer or Yamaha-approved supplier guarantees authenticity. This reduces the risk of counterfeit or low-quality parts that could damage the engine.

6. **Long-Term Cost Savings** While the upfront cost may be higher than aftermarket alternatives, OEM rings often last longer and perform better, potentially saving money on frequent replacements or engine repairs down the line.

7. **Compatibility with Other OEM Parts** If you re performing a full rebuild or upgrading other components (e.g., pistons, bearings), OEM rings integrate seamlessly with Yamaha s other parts, ensuring optimal engine performance.

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1. **Higher Cost** OEM parts are typically more expensive than aftermarket alternatives. The price of the Yamaha piston ring set (64X-11604-00) will likely be higher than generic or third-party brands, which may offer similar or slightly different specifications at a lower price.

2. **Limited Availability** OEM parts, especially for older models like the GP760, may be harder to find compared to aftermarket options. You might need to order from specialty motorcycle parts suppliers, which could involve longer wait times or shipping costs.

3. **Potential Overkill for Minor Issues** If the engine s compression loss or oil consumption is due to minor wear (e.g., slightly worn cylinder walls or valve issues) rather than severe piston ring failure, replacing just the rings may not fully resolve the problem. A full rebuild or cylinder honing might be necessary, adding to the cost.

4. **Installation Complexity** While the rings themselves are easy to install, a full piston ring job often requires removing the engine from the bike, disassembling the cylinder, and carefully measuring cylinder bore wear. This is a labor-intensive process that may require professional help, increasing total costs.

5. **Risk of Over-Tightening or Improper Installation** If not installed correctly (e.g., improper gap sizing, incorrect torque on the cylinder head, or using the wrong gasket), the rings could fail prematurely or cause damage. This risk exists with any piston ring replacement, not just OEM parts.

6. **Depreciated Value of the Bike** If you re restoring or maintaining a classic bike like the GP760, some enthusiasts argue that using OEM parts may not be necessary if the bike is no longer in daily use. Aftermarket parts can be just as reliable and may be more cost-effective for non-original builds.

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The Yamaha GP760 piston ring set (64X-11604-00) is a high-quality, reliable choice for anyone performing a piston ring job on their bike. Its OEM status ensures compatibility, performance consistency, and durability, making it ideal if you prioritize authenticity and long-term engine health. However, the higher cost and potential complexity of installation may not justify the purchase for minor issues or casual riders. If the engine is experiencing significant compression loss, oil leakage, or blow-by, the OEM rings are a strong recommendation. For less critical repairs or budget-conscious projects, aftermarket rings from reputable brands (e.g., Fel-Pro, Sealed Power, or Gasket) could be a viable alternative, provided they meet the GP760 s specifications.

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- You re performing a full engine rebuild or restoring the bike to original specifications.

- The engine is showing clear signs of piston ring failure (e.g., excessive oil consumption, low compression, or visible wear on the rings).

- You value OEM quality and are willing to pay the premium for reliability.

- You have access to a mechanic or are comfortable with the installation process.

- The engine issues are minor or unrelated to the piston rings (e.g., valve problems, carbon buildup).

- You re on a tight budget and can find a high-quality aftermarket set (e.g., Fel-Pro or Sealed Power) that matches the GP760 s requirements.

- The bike is not a daily rider and you re prioritizing cost savings over originality.

- Always measure the cylinder bore wear before purchasing rings. If the cylinders are significantly worn (e.g., beyond 0.020" over the original bore), consider oversized rings or cylinder sleeving.

- Pair the ring job with other maintenance tasks (e.g., replacing the cylinder head gasket, checking valve seals, or cleaning the combustion chamber) to maximize the rebuild s effectiveness.

- If unsure about installation, consult a Yamaha-certified mechanic or a motorcycle engine specialist to avoid costly mistakes.

Details:

4.8 out of 5 stars across 322 reviews. Please verify the part number and compatible model's before purchasing.: Are these genuine OEM parts?, Yes.

Item must be in original, uninstalled condition with no modifications. We started with a single motorcycle dismantled in home garage. Residential delivery with lift gate is available. Spotlight: A Day Inside .

Yamaha MX / ATV. Every part is one-of-a-kind. Look for the Make Offer button on listing page. Do you combine shipping?, Yes.

Larger items from $46.99. Fits 1997 2000 Yamaha Wave Runner GP760, XL760, Wave Venture 760, and Wave Blaster II 760 personal watercraft. Do you accept offers?, Some listings offers. We review all reasonable offers promptly.

FREE shipping on every order to the lower 48 states.

part #: 64x1160400 prices

• $40.00-$115.99

specifications ouboaen:

• for models: Gp760
• for makes: Yamaha
• for years: 1997-2000
• mpn: 64x-11604-00
• part type: Ring Piston
• country of origin: United States
• manufacturer warranty: Unspecified Length
• storage location: K6 Mot-n Buk 46

general ouboaen:

• Boat Parts > Outboard Engines Components > Powerhead Components
• condition: New other see details

payments ouboaen:

• wallet: Paypal
• credit card: Discover
• other

returns ouboaen:

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

seller ouboaen:

• # reviews: 220259
• city: Odessa, Florida
• rating: 99.4%

shipping ouboaen:

• carrier: FedEx, USPS
• class: Standard, Expedited, One-day
• cost: $0.00
• service: FedEx Ground / FedEx Home Delivery, USPS Priority Mail, FedEx 2Day, Overnight
• transit: 4-8 Days
• type: Fixed

offer ouboaen:

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

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