YAMAHA 498-11111-01-00 Cylinder Head

( Engine Type: 2-stroke ), ( Type: Cylinder Head ), ( Machine Type: Dual Sport Motorcycle, Street Motorcycle ), ( Items Included: Bolts ), ( Material: Aluminum ), ( Country/region Of Manufacture: Japan ), ( Vintage Part: Yes ), ( UPC: 498111110100 )

Review YAMAHA Cylinder Head Hardware Original fits DT250B DT250C 1975–1976

The Yamaha DT250B/C cylinder head is a crucial component of the DT250 motorcycle models produced by Yamaha between 1975 and 1976. This part is designed to house the combustion process that powers the bike, making it a vital element for the engine's proper functioning.

The cylinder head is made of aluminum alloy, which is lightweight yet strong enough to withstand the intense heat generated during the engine's operation. The head features a single overhead camshaft (SOHC) design, which helps in improving the engine's power output and efficiency.

The intake and exhaust ports on this cylinder head are carefully designed to optimize the flow of air and fuel into the engine and the exhaust gases out of it. The intake ports are large enough to ensure sufficient air-fuel mixture for a powerful combustion process. The exhaust ports are designed to minimize backpressure, making the engine more responsive and agile.

The cylinder head also comes with pre-installed valves and valve seats, which are made of durable material to ensure a tight seal and optimal gas flow. The valves are operated by the overhead camshaft using rocker arms and pushrods, providing precise valve control for optimal engine performance.

Moreover, the cylinder head includes a coolant passage system to keep the engine running at optimal temperature. This system ensures that the engine remains cool during prolonged usage, preventing overheating and potential engine damage.

Finally, the DT250B/C cylinder head is designed to be easily removable for maintenance purposes. It can be accessed by removing the engine covers, making it simpler for mechanics to perform routine checks and repairs. Additionally, the head is compatible with both DT250B and DT250C motorcycle models, making it a versatile and valuable component for Yamaha enthusiasts and collectors.

Buying a Yamaha DT250B/C Cylinder Head (1975-1976): A Comprehensive Analysis

1. Background

The Yamaha DT250B and DT250C are vintage motorcycles produced between 1975 and 1976. These bikes are known for their robustness and performance, but their age makes it necessary to replace certain parts, including the cylinder head. In this analysis, we will discuss the pros and cons of buying a used Yamaha DT250B/C cylinder head.

2. Pros

a. Availability: Used cylinder heads are generally more accessible and cost-effective than new ones. You can find them through various channels, such as online marketplaces, local bike stores, or motorcycle forums.

b. Cost-effective: Buying a used cylinder head can save you a significant amount of money compared to purchasing a new one. The cost difference can be substantial, especially for rare or discontinued parts.

c. Authenticity: A used cylinder head from the same era as your DT250B/C can provide a more authentic restoration experience. It may also retain the original specifications and characteristics that are desirable for vintage motorcycle enthusiasts.

3. Cons

a. Unknown Condition: When purchasing a used cylinder head, you may not be aware of its previous maintenance history or condition. This can lead to potential issues, such as cracks, warping, or worn-out valves, which could require additional repairs or replacement costs.

b. Compatibility: It's essential to verify that the used cylinder head is compatible with your specific DT250B/C model. Minor differences in the engine configuration could result in poor performance or even damage to the engine.

c. Wear and Tear: A used cylinder head may have signs of wear and tear, such as scratches, dents, or corrosion. While these cosmetic issues do not affect the performance directly, they may impact the appearance and overall value of your motorcycle restoration project.

4. Conclusion

When deciding to buy a used Yamaha DT250B/C cylinder head, it's crucial to weigh the pros and cons carefully. The potential cost savings and authenticity can be significant, but the unknown condition and compatibility concerns should also be considered. To minimize the risks, it's recommended to purchase from a reputable seller with a good feedback history or a trusted mechanic's recommendation.

5. Recommendation

a. Verify Compatibility: Make sure the used cylinder head is compatible with your specific DT250B/C model. Check the engine configuration, casting numbers, and any other relevant details to ensure a proper fit.

b. Research the Seller: Purchase from a reputable seller or a trusted mechanic to minimize the risk of receiving a faulty or incompatible cylinder head.

c. Inspect the Part: If possible, inspect the cylinder head in person or request detailed images and descriptions from the seller. Look for signs of cracks, warping, or excessive wear.

d. Ask for a Warranty or Return Policy: Request a warranty or return policy from the seller to protect your investment. This will give you peace of mind and the ability to return or exchange the cylinder head if it turns out to be incompatible or faulty.

Details:

Please research fitment prior to buying. These items are used will show some dirt, scratches, dings, etc. See my other listings for more parts from this same motorcycle. Removed from 1975 Yamaha DT250.

Left and right is from the riding position perspective.

part #: 498111110100 prices

• $39.00-$56.00

specifications cylindermotorcycleiz:

• for models: Dt250b, Dt250c
• for makes: Yamaha
• for years: 1975-1976
• engine type: 2-stroke
• type: Cylinder Head
• machine type: Dual Sport Motorcycle, Street Motorcycle
• items included: Bolts
• material: Aluminum
• country/region of manufacture: Japan
• vintage part: Yes
• upc: 498111110100

payments cylindermotorcycleiz:

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

seller cylindermotorcycleiz:

• # reviews: 402
• rating: 100.0%
• city: Antioch, Illinois

general cylindermotorcycleiz:

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

returns cylindermotorcycleiz:

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

offer cylindermotorcycleiz:

• quantity: 1
• availability: In Stock
• options: Ship-to-home
• best offers: True
• sold: 0
• started: May 2, 2025

shipping cylindermotorcycleiz:

• carrier: USPS, UPS
• service: USPS Ground Advantage, UPS Ground, USPS Priority Mail
• type: Calculated
• cost: $17.00
• transit: 4-8 Days
• class: Standard, Expedited

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