MOTOR-BRO AUD1312D Carb Carburetor Sport Motor Carb/carburetor 75

( Brand: Motor-bro ), ( Country Of Origin: United States ), ( Manufacturer Part Number: AUD1312D ), ( Type: Carburetor ), ( Manufacturer Warranty: 1 Year ), ( Modified Item: No ), ( Surface Finish: Standard )

Review MOTOR BRO Usa Fit Honda Carb/carburetor Sport 75 fits TRAIL ST90 1973–1990

Introducing the Motor-Bros Aud1312D Carburetor Kit, specifically designed for the Honda ST90 Trail Sport models from 1973 to 1975. This high-performance carburetor kit is an excellent upgrade for your vintage motorbike, ensuring optimal engine performance and fuel efficiency.

The Motor-Bros Aud1312D Carburetor Kit comes with a set of four brand new Keihin carburetors, each featuring a 38mm bore size for enhanced airflow and better throttle response. These carburetors are precision-engineered to deliver a consistent fuel-air mixture to the engine, ensuring seamless power delivery and improved engine response.

Each carburetor in this kit comes equipped with a set of new jets, needles, and floats, ensuring a perfect fit and optimal fuel-air mixture. The kit also includes new gaskets, making installation a breeze and eliminating the need to reuse old, worn-out gaskets.

The Motor-Bros Aud1312D Carburetor Kit is designed to provide an easy installation process. The kit includes detailed instructions, making it simple for even the most novice of mechanics to install these carburetors on their Honda ST90 Trail Sport. Additionally, the kit includes new mounting hardware, making it a one-stop-shop for all your carburetor upgrade needs.

This Motor-Bros carburetor kit is not just about performance; it is also about style. The sleek and modern design of the carburetors adds a touch of sophistication to your vintage Honda ST90 Trail Sport, making it a head-turner at any bike show or ride.

In summary, the Motor-Bros Aud1312D Carburetor Kit is an excellent upgrade for your Honda ST90 Trail Sport from 1973 to 1975. It delivers improved engine performance, fuel efficiency, and a sleek design, making it a must-have for any enthusiast looking to restore or modify their vintage motorbike.

The Honda ST90 Trail Sport, manufactured between 1973 and 1975, utilizes a carburetor for fuel delivery. One aftermarket carburetor option for this motorcycle is the Motobros Carburetors Model AU1312D. In this response, we'll discuss the potential advantages and disadvantages of using this carburetor.

1. Improved Performance: The Motobros AU1312D is designed to provide better fuel mixture and air-fuel ratio, leading to increased horsepower and torque. This can result in improved throttle response, better acceleration, and smoother engine operation.

2. Easy Installation: This carburetor is a direct replacement for the original Honda ST90 carburetor. This means that the installation process is relatively straightforward and does not require significant modifications to the motorcycle.

3. Durability: The Motobros AU1312D is made of high-quality materials and is designed to withstand the rigors of off-road riding. It also includes various features, such as a strong float bowl gasket and a durable diaphragm, to minimize the risk of leaks and other issues.

4. Adjustability: This carburetor offers a high degree of adjustability, allowing riders to fine-tune the fuel mixture to suit their specific riding style and conditions. This can result in improved fuel efficiency, reduced emissions, and a more enjoyable riding experience.

1. Cost: The Motobros AU1312D is typically more expensive than the original Honda ST90 carburetor. This may be a significant consideration for some riders, particularly those on a tight budget.

2. Complexity: While the installation process is relatively straightforward, the Motobros AU1312D offers a high degree of adjustability, which can be overwhelming for some riders. This may require additional time and effort to learn how to properly adjust the carburetor to achieve optimal performance.

3. Potential Compatibility Issues: It's essential to ensure that the Motobros AU1312D is compatible with the specific Honda ST90 Trail Sport model and year. While it is a direct replacement for most ST90 models, there may be some differences in the engine configuration that could affect compatibility.

The Motobros Carburetors Model AU1312D offers several advantages for Honda ST90 Trail Sport riders, including improved performance, easy installation, durability, and adjustability. However, it also comes with some disadvantages, such as a higher cost, potential complexity, and potential compatibility issues. Ultimately, the decision to purchase this carburetor depends on an individual rider's priorities, budget, and level of comfort with carburetor adjustments.

If you are looking to enhance the performance of your Honda ST90 Trail Sport and are willing to invest in a premium carburetor, the Motobros AU1312D is an excellent choice. It offers numerous benefits, including improved fuel mixture, durability, and adjustability. However, if you are on a tight budget or prefer a more straightforward solution, you may want to consider sticking with the original Honda carburetor or exploring other, more affordable aftermarket options.

part # aud1312d price

• $22.02

specifications iodacarb:

• for models: St90, Trail
• for makes: Honda
• for years: 1973-1990
• brand: Motor-bro
• country of origin: United States
• manufacturer part number: AUD1312D
• type: Carburetor
• manufacturer warranty: 1 Year
• modified item: No
• surface finish: Standard

offer iodacarb:

• best offers: True
• started: May 20, 2026
• options: Ship-to-home
• quantity: 10
• availability: In Stock
• sold: 0

shipping iodacarb:

• service: Standard
• class: Standard
• cost: $0.00
• type: Fixed
• transit: 6-12 Days

returns iodacarb:

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

payments iodacarb:

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

general iodacarb:

• Motorcycle Scooter Parts Accessories > Air Intake Fuel Delivery > Carburetors
• condition: New

seller iodacarb:

• # reviews: 150
• rating: 99.3%

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