fits model: Yz250, Std, 360. make: Yamaha. year: 1975-75.

( Engine Type: 2-stroke ), ( Type: Piston Ring ), ( Country/region Of Manufacture: Japan ), ( Vintage Part: Yes ), ( UPC: 364116117000 )
The Yamaha YZ250/360 Standard piston ring, model number 364-11611-70-00, is a critical engine component designed for use in the 1975-75 Yamaha YZ250 and YZ360 motorcycles. This piston ring is essential for maintaining the optimal sealing of the piston within the engine's cylinder, ensuring efficient combustion and optimal engine performance.
The 364-11611-70-00 ring set consists of multiple rings, which include the compression ring, oil control ring, and the skirt or groove ring. Each ring serves a distinct function within the engine. The compression ring, located at the top of the piston, creates an airtight seal during the power stroke to ensure maximum compression of the fuel-air mixture for efficient combustion.
The oil control ring, located just below the compression ring, prevents engine oil from passing between the piston and cylinder walls. It also helps to maintain the proper oil film on the piston s skirt and rings, reducing friction, and ensuring consistent engine operation.
The skirt or groove ring, located at the base of the piston, seals against the cylinder wall to prevent the loss of compression and engine gases. Its accurate sizing and design help to ensure proper sealing and reducing the chances of piston ring damage due to engine heat and pressure.
The piston rings are made from high-quality materials, suited for the demanding conditions of high-performance motorcycle engines. They are designed for superior durability and resistance to wear, enabling them to withstand the rigors of racing or high-mileage use.
Installation of these piston rings requires careful attention and specific tools to ensure accurate placement and seating, as improper installation can lead to engine damage or poor performance. Always follow the manufacturer's guidelines and replace piston rings as recommended for optimal engine health and longevity.
These Yamaha piston rings are OEM (original equipment manufactured) parts, ensuring a perfect fit andoptimal engine functionality. By using high-quality replacement rings from a reputable manufacturer, you'll be able to restore your motorcycle's engine performance to its original level or even exceed it.
The Yamaha YZ250/360 Standard Piston Ring (Yamaha Part Number: 364-11611-70-00) is an essential part for maintaining the performance and durability of a Yamaha YZ250 or YZ360 motocross bike. Replacing old or worn-out piston rings can improve engine efficiency and prevent damage. In this analysis, we will objectively examine the advantages and disadvantages of purchasing this piston ring.
II. Pros1. OEM (Original Equipment Manufacturer) replacement: Purchasing an OEM piston ring from Yamaha guarantees optimal fit and compatibility. Worn-out parts can cause damage to other engine components, so choosing a replacement part from the same manufacturer can minimize the risk of further issues.
2. Superior quality: Yamaha is known for its high-performance engines. By purchasing an OEM piston ring, you can be assured that the quality is at the same level as other components in your bike, ensuring longevity and optimal engine performance.
3. Reliable: OEM piston rings are designed for the specific engine in your bike. This means that they are tailored to fit and function correctly, ensuring reliable piston ring performance.
4. Improved engine efficiency: Worn-out piston rings can cause your engine to work harder than necessary. A new piston ring can help restore the engine's ability to transfer power from fuel to the wheels, leading to improved engine efficiency.
III. Cons1. Cost: While an OEM piston ring may be the best choice for ensuring a proper fit, it can also be more expensive than aftermarket alternatives. The decision between cost and quality will depend on individual priorities.
2. Availability: Depending on the location, it may be more difficult to find a local dealer or supplier that carries the exact Yamaha part number you requireto purchase the piston ring. Online shopping or contacting a Yamaha dealer may be necessary to secure the part.
IV. ConclusionWhile the cost may be a potential concern for some buyers, the advantages of purchasing an OEM Yamaha YZ250/360 Standard Piston Ring with part number 364-11611-70-00 include guaranteed fit, superior quality, reliability, and improved engine efficiency. If you are seeking the best fit and performance for your Yamaha motocross bike, an OEM piston ring is a sound investment.
V. RecommendationMy recommendation is to consider the importance of quality and fit in the context of your budget when deciding whether to purchase an OEM Yamaha YZ250/360 Standard Piston Ring with part number 364-11611-70-00. If you prioritize performance, reliability, and seamless compatibility with your bike's engine, opting for an OEM piston ring is an excellent choice. If you are focused primarily on cost, consider researching aftermarket alternatives to find a lower-priced yet reliable alternative.
NOS Yamaha 1975-75 YZ250/360 Genuine OEM STD Piston Ring Part # 364-11611-70-00 New.