YAMAHA 20002VI02 Cylinder Jug Barrel Engine Piston 77MM

( Manufacturer Part Number: 20002VI02 ), ( Part Type: Cylinder Engine Piston Work ), ( Engine Type: 4-stroke ), ( Country Of Origin: Japan )

Review YAMAHA 2000 2vi02 Cylinder Works 77mm Jug Barrel Engine Piston fits WR250F 250F WR 2001–2013

The Yamaha 20002VI02 cylinder is an essential component of the WR250F engine model produced by Yamaha between 2001 and 2013. This piston is designed to deliver optimal performance and reliability for off-road motorcycle enthusiasts.

Measuring 77mm in bore diameter, this piston is slightly larger than the standard size, allowing for increased power output and torque. Its construction consists of a forged aluminum alloy material, ensuring both strength and lightweight properties, which are crucial for off-road applications where weight reduction is essential.

The piston features a compact design, with a dome-shaped crown to enhance combustion efficiency. The piston skirt is made of a nitrided finish, which provides an excellent surface for piston ring sealing and reduces friction between the piston and cylinder walls.

The piston rings are made of a high-quality material that ensures a tight seal within the cylinder, minimizing the loss of compression and reducing blow-by gases. These rings include an oil control ring that ensures proper lubrication of the piston and cylinder while reducing oil consumption.

The piston pin is made of a strong, wear-resistant material, ensuring a secure connection between the piston and the connecting rod. The piston pin is also fitted with a nut that has an integrated o-ring seal to prevent oil leakage.

The piston design also includes cooling fins on the skirt and crown areas, which help to dissipate heat generated during the combustion process, ensuring consistent engine performance and longevity.

In summary, the Yamaha 20002VI02 cylinder piston is a high-performance component designed specifically for the WR250F engine produced between 2001 and 2013. Its forged aluminum alloy construction, compact design, and advanced features deliver increased power output, improved combustion efficiency, and enhanced durability, making it an ideal choice for off-road motorcycle enthusiasts.

Pros and Cons of Buying a Yamaha 20002VI02 Cylinder for 2001-2013 WR250F

a. Improved Performance: This cylinder is known for providing better power delivery and improved performance compared to the stock cylinder. It is suitable for riders who want to enhance their WR250F's power output.

b. Durability: The Yamaha 20002VI02 cylinder is made of high-quality materials, ensuring durability and longevity. It can withstand the rigors of off-road riding and daily commuting.

c. High Compatibility: This aftermarket cylinder is designed to fit the 2001-2013 WR250F models, making it a convenient choice for riders with these motorcycles.

d. Cost-Effective: Replacing the stock cylinder with this aftermarket one can save you money in the long run since it offers better performance and durability.

a. Installation Complexity: Installing the aftermarket cylinder may require professional assistance or extensive mechanical knowledge. It may not be a straightforward DIY project for inexperienced riders.

b. Potential Powerband Shift: Although many riders report improved power delivery, some have noted a slight powerband shift after installing this cylinder. This may take some time to get used to, and adjustments to the fuel mapping or ignition timing may be necessary.

c. Potential Noise Increase: Some users have reported an increase in engine noise after installing this cylinder. This may not be a concern for all riders, but it is worth considering if you value a quiet ride.

The Yamaha 20002VI02 cylinder for the 2001-2013 WR250F offers several advantages, such as improved performance, durability, and cost-effectiveness. However, it does come with some potential downsides, such as installation complexity and potential powerband shifts. Ultimately, the decision to buy this aftermarket cylinder depends on your riding preferences, mechanical skills, and budget. If you are comfortable with the potential cons and are looking for better power and durability, this cylinder could be a worthwhile investment.

If you decide to purchase the Yamaha 20002VI02 cylinder, ensure you have the necessary mechanical skills or seek professional assistance for installation. Additionally, consider adjusting the fuel mapping or ignition timing to optimize the power delivery and minimize any potential powerband shifts. Lastly, be prepared for a slight increase in engine noise.

Details:

Piston is in good working order. If your vehicle is different than this, be sure to verify fitment. These parts were removed from a 2007 Yamaha WR250F. Gasket surfaces and mounting threads are intact.

Cylinder walls are intact, light wear seen. They are included with the sale, free of charge. All parts unless otherwise stated are used and will show signs of normal wear tear. Fitment Guarantee.

No cracks, breaks or repairs seen. MPN: 2000 2vi02. Cylinder Works Jug Factory 77MM Assembly. Unit is in good condition.

Wrist pin should be replaced as it is showing wear. Electrical parts are non-returnable.

part #: 20002vi02 price

• $199.99

specifications cylindermotorcycleiz:

• for models: Wr250f, 250f, Wr
• for makes: Yamaha
• for years: 2001-2013
• mpn: 20002vi02
• part type: Cylinder Engine Piston Work
• engine type: 4-stroke
• country of origin: Japan

payments cylindermotorcycleiz:

• wallet: Paypal
• credit card: Visa
• other

offer cylindermotorcycleiz:

• availability: In Stock
• started: March 24, 2026
• quantity: 1
• sold: 0
• options: Ship-to-home

seller cylindermotorcycleiz:

• rating: 99.9%
• # reviews: 4884
• city: Puyallup, Washington

shipping cylindermotorcycleiz:

• class: Expedited
• type: Fixed
• transit: 4-8 Days
• cost: $20.00
• carrier: USPS
• service: USPS Priority Mail Medium Flat Rate Box

returns cylindermotorcycleiz:

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

general cylindermotorcycleiz:

• Motorcycle Scooter Parts Accessories > Engines Engine Parts > Cylinder Heads
• condition: Used

Yamaha 20002VI02 Is Similar To:

• -11101-04-00 Cylinder Head Assy 11101-04-00 Yamaha (27.9% similar) This top end assembly is in very good condition other than the intake boot a little cracked as you can see pictures exhaust studs are broken off. TTR225 complete head with cam rockers timing gear valves bolts etc. Or smooth them off drill out fast free shipping...(June 7th, 2017)
• 04yz250f Yamaha Cylinder Head Valves Camshaft Cam Cover Yz (30.6% similar) Free shipping in the USA to lower 48 states. All only parts pictured are included in this listing. Therefore, most items are shipped promptly via USPS priority, 1ST class if under 16OZ. Please see pics for cosmetics as are part of the. Many parts from the 04 YZ250F fit other years model's. Or FedEx ...(February 11th, 2019)
• 05wr250f Yamaha 2005 Wr250f Cylinder (42.6% similar) All parts pictured are included. Or FedEx ground. Free shipping in the USA to lower 48 states. Therefore, most items are shipped promptly via USPS priority, 1ST class if under 16OZ. Journals and top of head look ok. Bottom of head has extensive damage to and valves. Many 05 WR250F parts fit other ...(December 3rd, 2017)
• 0931-0629 Moose Yamaha Racing Cylinder Yz (28.3% similar) It is a used part so may show some signs of wear. Removed from: 2016 yamaha YZ250F with miles please review all pictures to assess the condition of item. Came off a well running bike. Cylinder looks to be in good shape. Cylinder has no scores or scratches...(March 15th, 2019)
• 1061846 Yamaha Engine Motor Cylinder Head (33.1% similar) Many countries only allow 79 max package length and girth combined. Each part is systematically placed to be easily located once purchased. If the item does not fit motorcycle model's specified in listing. More options available upon request...(April 12th, 2018)
• 1069170 Yamaha Engine Motor Cylinder Needs Replatted (36.2% similar) Each part is systematically placed to be easily located once purchased. If the item does not fit motorcycle model's specified in listing. More options available upon request...(April 19th, 2018)
• 10m-11110-00-00 Yamaha Cylinder Head (27.9% similar) 1982 XJ1100 tics head...(November 21st, 2018)
• 10m-11191-00-00 Yamaha Maxim Xj Engine Cylinder Head Valve Camshaft Cover (34% similar) Make sure you are purchasing the correct part for your bike and if need any measurements just let me know. Please first before on any issue. This was removed from a 1982 yamaha XJ1100 maxim motorcycle. There may be dirt, scratches, scuffs rust etc. Comes with everything pictured, consult dealer ...(June 23rd, 2018)
• 10v00 Yamaha Cylinder Head (30.4% similar) Yamaha DT125 liquid cooled top cylinder head in good condition, plug threads are ,comes with the sensor it, as seen pics 10V00...(September 22nd, 2018)
• 1111122222 Yamaha 2000-2001 R1 Engine (37.4% similar) ...(December 20th, 2017)
• 11h-11110-00-00 Yamaha Vision Cylinder Head Valves Springs Cam Shaft Complete Assembly (30.2% similar) Unknown miles. Front cylinder head assembly. I disassembled it to pack. Shows little to no wear on the cams, should be a good go head, just clean up gasket surface and bolt. Includes bolts...(March 22nd, 2018)