YAMAHA 5UP-11311-02-00 Engine Cylinder Head Jug Pot Vertex Piston Exhaust Valve

( Manufacturer Part Number: 5UP-11311-02-00 ), ( Part Type: Valve )

Review YAMAHA Engine Cylinder Head Jug Pot Vertex Piston Exhaust Valve fits YZ250 YZ 250 2003–2015

The Yamaha YZ250 engine cylinder head is a crucial component of the high-performance YZ250 motocross bike, manufactured in 2005. This cylinder head, specifically model number 5UP-11311-02-00, is designed to optimize engine power and efficiency.

The cylinder head housing is made from lightweight and durable aluminum alloy, which reduces the overall weight of the engine and enhances its cooling capabilities. This particular head comes with a jug pot design, meaning the combustion chamber is integrated into the head itself. This design allows for a more direct fuel-air mixture and a more efficient combustion process.

The cylinder head also features vertex piston technology, which utilizes a piston with a unique shape that improves engine power and torque. The piston's shape and design allow for a more efficient transfer of energy from the combustion process to the crankshaft, resulting in increased horsepower and torque.

Moreover, the cylinder head includes exhaust valves that are specifically designed to optimize engine performance. These valves are made from high-strength materials, such as titanium, to ensure durability and reliability. The valves are also designed with a specific size and shape to maximize exhaust flow and reduce back pressure, which in turn increases engine power and efficiency.

The cylinder head's design and construction also prioritize ease of maintenance. The head comes with convenient access to critical components, such as the valves and spark plug, making it simple for mechanics to perform routine maintenance tasks. Additionally, the head is designed with a robust sealing system to prevent coolant and oil leaks, ensuring that the engine remains in top condition for extended periods.

In summary, the Yamaha YZ250 2005 03-15 cylinder head, model number 5UP-11311-02-00, is a high-performance component that optimizes engine power and efficiency through its jug pot design, vertex piston technology, and exhaust valves. Its lightweight and durable construction, ease of maintenance, and efficient design make it a valuable investment for any motocross enthusiast or professional mechanic.

Pros and Cons of Buying a Yamaha YZ250 Engine Cylinder Head with Jug, Pot, Vertex Piston, Exhaust Valve

The Yamaha YZ250 engine is known for its high performance and durability. Replacing certain parts, such as the cylinder head, piston, and exhaust valve, can help maintain or restore the engine's performance. Below are some pros and cons of buying a complete Yamaha YZ250 engine cylinder head package that includes the jug, pot, vertex piston, and exhaust valve.

1. High-performance: These aftermarket parts are often designed to enhance the engine's power and efficiency, providing better performance than the OEM parts.

2. Durability: Aftermarket parts are usually made from stronger materials, ensuring longer-lasting performance and reducing the need for frequent replacements.

3. Customizability: Upgrading individual parts allows riders to fine-tune their engine to their specific riding style and preferences.

4. Cost-effective: Buying a complete cylinder head package can be more cost-effective than buying each part separately.

1. Compatibility: Ensure the aftermarket parts are compatible with your specific engine model and year to avoid any potential issues.

2. Installation: Installing aftermarket parts can be more complex than OEM parts, requiring additional time and expertise.

3. Risk of damage: Handling and installing aftermarket parts can increase the risk of damaging the engine or other components.

4. Warranty: Aftermarket parts usually do not come with the same manufacturer warranty as OEM parts.

The decision to buy a Yamaha YZ250 engine cylinder head package with jug, pot, vertex piston, and exhaust valve depends on the rider's priorities and goals. The benefits, such as high performance and durability, can outweigh the potential drawbacks, like compatibility and installation challenges, for some riders. However, it's essential to consider the specific requirements of your engine and your personal riding style before making a purchase.

If you are looking to improve your engine's performance and are comfortable with the potential challenges of installing aftermarket parts, then buying a complete Yamaha YZ250 engine cylinder head package with jug, pot, vertex piston, and exhaust valve could be a worthwhile investment. Ensure you purchase from a reputable seller and confirm the compatibility of the parts with your engine model and year.

Details:

Fitment Guarantee. Mounting threads and gasket surfaces are all intact. No cracks, breaks or repairs. Unit is in good working condition.

OEM Cylinder Jug / Power Valve Assembly. MPN: 5UP-11311-02-00. They are included with the sale, free of charge. Factory 66.40MM bore.

These parts were removed from a 2005 Yamaha YZ250. Exhaust power valve operates properly. If your vehicle is different than this, be sure to verify fitment. Cylinder walls are in good shape, plating is intact.

Electrical parts are non-returnable. Piston is new in box. All parts unless otherwise stated are used and will show signs of normal wear tear.

part #: 5up113110200 price

• $649.99

specifications cylindermotorcycleiz:

• for models: Yz250, Yz, 250
• for makes: Yamaha
• for years: 2003-2015
• mpn: 5up-11311-02-00
• part type: Valve

returns cylindermotorcycleiz:

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

payments cylindermotorcycleiz:

• credit card: Discover
• wallet: Paypal
• other

shipping cylindermotorcycleiz:

• transit: 3-7 Days
• carrier: FedEx
• type: Fixed
• class: Standard
• service: FedEx Ground / FedEx Home Delivery
• cost: $25.00

offer cylindermotorcycleiz:

• started: September 15, 2025
• quantity: 1
• options: Ship-to-home
• sold: 0
• availability: In Stock

seller cylindermotorcycleiz:

• rating: 99.8%
• # reviews: 3288
• city: Puyallup, Washington

general cylindermotorcycleiz:

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

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