fits model: Tnt, 400. make: Ski-doo. year: 1973–1974.

The Tillotson TNT Ski 400 HD123A DOO Air Carb is a high-performance, two-stroke snowmobile carburetor designed for use on select models of 1973 and 1974 Polaris Doble Engine snowmobiles. This carburetor features a unique, high-performance design that delivers optimal fuel and air mixture for reliable and efficient engine operation.
The Tillotson TNT Ski 400 HD123A DOO Air Carb is equipped with a specialized air intake system that utilizes a high-flow air filter to ensure a clean and consistent air supply to the engine. The carburetor also features a high-quality, adjustable fuel jet that allows the user to fine-tune the fuel mixture to optimize engine performance based on specific operating conditions.
The Tillotson TNT Ski 400 HD123A DOO Air Carb is constructed of high-quality materials, including a durable, corrosion-resistant aluminum housing, and features a precision-machined throttle body and metering plate for accurate fuel and air delivery. The carburetor is also equipped with a venturi-style fuel bowl that provides efficient fuel vaporization, ensuring a smooth and powerful engine response.
The Tillotson TNT Ski 400 HD123A DOO Air Carb is easy to install and requires minimal maintenance, making it a popular choice for snowmobile enthusiasts who demand the best in performance and reliability. The carburetor is also backed by Tillotson's reputation for quality and customer support, ensuring that users can rely on their carburetor to perform at its best for years to come.
Overall, the Tillotson TNT Ski 400 HD123A DOO Air Carb is a high-performance, reliable, and easy-to-use carburetor that delivers optimal fuel and air mixture for 1973 and 1974 Polaris Doble Engine snowmobiles. With its durable construction, precision-machined components, and user-friendly design, the Tillotson TNT Ski 400 HD123A DOO Air Carb is the perfect choice for any snowmobile enthusiast looking to maximize their engine performance and ensure a smooth and enjoyable riding experience.
Pros of buying a Tillotson TNT Ski 400 HD123A Doo Air Carb for 1973-1974 models:1. Reliability: Tillotson is a well-known brand in the snowmobile market, and this model is known for its durability and reliability.
2. Easy to Tune: The air carburetor design makes it easy to tune for optimal performance.
3. Affordability: Compared to some newer models, this carburetor is relatively affordable, making it a good option for budget-conscious buyers.
4. Fit and Compatibility: It is specifically designed for 1973-1974 Doo models, ensuring a perfect fit and easy installation.
Cons of buying a Tillotson TNT Ski 400 HD123A Doo Air Carb for 1973-1974 models:1. Limited Performance: While it is reliable and easy to tune, it may not offer the same level of performance as more modern carburetors.
2. Availability of Parts: Older models may have limited availability of replacement parts, which could make repairs more difficult and expensive.
3. Potential for Wear and Tear: With age, the carburetor may develop wear and tear, leading to performance issues.
Conclusion:The Tillotson TNT Ski 400 HD123A Doo Air Carb is a reliable and affordable option for 1973-1974 Doo models. Its easy-to-tune design and fit and compatibility with the specific model make it an attractive choice. However, it may not offer the same level of performance as more modern carburetors, and its age may lead to potential wear and tear and limited availability of replacement parts. If you are looking for a reliable and budget-friendly option, this carburetor could be a good choice. If you prioritize maximum performance, you may want to consider a more modern alternative.
Metering plates and a few other pieces missing. Needs cleaning and a complete rebuild. Used carb I think off of a 1973 or 1974 ski doo 400 Tnt free air.