YAMAHA 3R400 Cylinder Head 3R4-11111-00-00

( Manufacturer Part Number: 3R400 ), ( Engine Type: 2-stroke ), ( Type: Air Cooled Head ), ( Machine Type: Off-road Motorcycle ), ( Manufacturer Warranty: No ), ( Oe/oem Part Number: 3r4-11111-00-00 ), ( Country/region Of Manufacture: Japan ), ( Vintage Part: Yes ), ( Placement On Vehicle: Front )

Review YAMAHA Vintage Cylinder Head fits YZ250 IT250 1980–1982

Yamaha YZ250/IT250 Cylinder Head (3R4-11111-00-00) - A High-Performance Upgrade for Your 1980-1982 Yamaha 3R400, YZ250, or IT250

The Yamaha 3R4-11111-00-00 cylinder head is an essential upgrade for any enthusiast looking to boost the power and performance of their 1980-1982 Yamaha 3R400, YZ250, or IT250 motorcycle. This high-performance cylinder head is meticulously engineered to accommodate the needs of serious off-road riders and racers, delivering unparalleled power and reliability.

The 3R4-11111-00-00 cylinder head is a direct replacement for the original equipment on these classic Yamaha models. Featuring an oversized intake port design, this cylinder head increases airflow into the engine, allowing for a more efficient combustion process. The large intake ports let in more air, ensuring a denser fuel-air mixture, which translates into increased horsepower and torque.

Moreover, the 3R4-11111-00-00 cylinder head boasts larger exhaust ports that minimize back-pressure and maximize scavenging, enabling the engine to expel gases more efficiently. This results in a more powerful exhaust stroke and an overall improvement in engine performance.

The cylinder head also includes upgraded valves, which have been specifically designed to provide superior flow characteristics. The intake valves are larger in size to accommodate the increased airflow, while the exhaust valves have been optimized for better exhaust flow and scavenging. The combination of these upgraded valves and the larger intake and exhaust ports contributes to a more potent combustion process and a more responsive engine.

The 3R4-11111-00-00 cylinder head is manufactured using the latest computer-aided design (CAD) and manufacturing techniques, ensuring a perfect fit and finish. Each head undergoes rigorous testing to ensure it meets the highest standards of quality and reliability.

In conclusion, the Yamaha YZ250/IT250 Cylinder Head (3R4-11111-00-00) is an exceptional upgrade for any rider looking to elevate the performance of their 1980-1982 Yamaha 3R400, YZ250, or IT250 motorcycle. With its increased airflow, efficient combustion process, and improved exhaust scavenging, this cylinder head delivers a noticeable power boost, making every ride more exhilarating and enjoyable.

A Comparative Analysis of Yamaha YZ250 (1980-1982) and IT250 (1981) Cylinder Heads - Pros, Cons, and Conclusion

The Yamaha YZ250 (1980-1981) and IT250 (1981) cylinder heads share some similarities but have distinct differences. This analysis will outline the pros, cons, and a concluding recommendation for each.

1. Lightweight: The YZ250 cylinder head is lighter compared to the IT250, contributing to improved handling and agility.

2. Power: The YZ250 cylinder head produces more power than the IT250 due to its larger intake and exhaust ports.

3. Durability: The YZ250 cylinder head is known for its durability and reliability, making it an excellent choice for riders who prefer a robust engine.

1. Complexity: The YZ250 cylinder head is more complex than the IT250 due to its higher performance design. This complexity may lead to more frequent maintenance and repair needs.

2. Cost: The YZ250 cylinder head is typically more expensive than the IT250 due to its higher performance capabilities.

1. Simplicity: The IT250 cylinder head is simpler in design compared to the YZ250. This makes it easier to maintain and repair.

2. Affordability: The IT250 cylinder head is generally more affordable than the YZ250, making it a budget-friendly option for riders.

3. Smooth power delivery: The IT250 cylinder head delivers power smoothly, making it an excellent choice for riders who prefer a more balanced power band.

1. Less power: The IT250 cylinder head produces less power than the YZ250 due to its smaller intake and exhaust ports.

2. Limited performance: The IT250 cylinder head is less suited for high-performance riding, as it is designed with a focus on reliability and simplicity.

Both the Yamaha YZ250 (1980-1981) and IT250 (1981) cylinder heads offer unique characteristics and cater to different riding styles and preferences. The YZ250 is a better choice for riders who prioritize power, performance, and handling, while the IT250 is more suitable for those who value simplicity, affordability, and reliability. Ultimately, the decision between the two depends on individual riding styles and priorities.

Based on the analysis, if you are a rider who prefers high power, better handling, and is willing to invest more time and money in maintenance, the Yamaha YZ250 cylinder head (1980-1981) would be the recommended choice. Alternatively, if you prioritize simplicity, affordability, and reliability, the Yamaha IT250 cylinder head (1981) would be the better option for you.

Details:

Head gasket surface has no major nicks. Threads good. Dome area has some work done at some point. One top fin has a dent on left side towards the middle.

1980 81 YZ250g/h cylinder head, may fit other model's.

part #: 3r400 prices

• $13.42-$77.77

specifications cylindermotorcycleiz:

• for models: Yz250, It250
• for makes: Yamaha
• for years: 1980-1982
• mpn: 3r400
• engine type: 2-stroke
• type: Air Cooled Head
• machine type: Off-road Motorcycle
• manufacturer warranty: No
• oe/oem part number: 3r4-11111-00-00
• country/region of manufacture: Japan
• vintage part: Yes
• placement on vehicle: Front

seller cylindermotorcycleiz:

• # reviews: 2227
• rating: 100.0%
• city: Tyngsboro, Massachusetts

general cylindermotorcycleiz:

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

offer cylindermotorcycleiz:

• quantity: 1
• options: Ship-to-home
• sold: 0
• started: February 22, 2025
• availability: In Stock

shipping cylindermotorcycleiz:

• transit: 5-9 Days
• type: Calculated
• class: Economy, Expedited
• service: FedEx Ground Economy, USPS Priority Mail
• cost: $11.41
• carrier: FedEx, USPS

returns cylindermotorcycleiz:

• policy: No Returns

payments cylindermotorcycleiz:

• wallet: Google-pay
• credit card: Discover
• other

Yamaha 3R400 Is Similar To:

• -11101-04-00 Cylinder Head Assy 11101-04-00 Yamaha (44.3% 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)
• 01-yfn16021-1wb Pro Design Cool Head Replacement Stud Kit Yamaha Banshee (14.4% similar) It is not designed to work with the oe speedometer on wry model's.: the tusk impact complete wheel is a quality motocross and off-road motorcycle. Performance wheel assembly for motocross and off-road racing applications. Details: warranty: unspecified length manufacturer part number: 01-YFN16021-...(March 20th, 2018)
• 04yz250f Yamaha Cylinder Head Valves Camshaft Cam Cover Yz (31.7% 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 (37.6% 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 (32.8% 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 (42.6% 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 (37.6% 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 (34.2% similar) 1982 XJ1100 tics head...(November 21st, 2018)
• 10m-11191-00-00 Yamaha Maxim Xj Engine Cylinder Head Valve Camshaft Cover (35.1% 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 (37.4% 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)
• 11h-11110-00-00 Yamaha Vision Cylinder Head Valves Springs Cam Shaft Complete Assembly (31.1% 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)