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  3. TILLOTSON HL90A

TILLOTSON Carburetor HL-90A

Hl-90a Tillotson Hl90a Carburetor For Parts

( Brand: Tillotson ), ( Manufacturer Part Number: HL90A ), ( Type: Carburetor ), ( Country Of Origin: United States )

Review TILLOTSON Carburetor For Parts

The Tillotson HL-90A carburetor is a high-performance, two-stroke engine carburetor designed for use in various power equipment applications, such as go-karts, lawn mowers, and other small engines. This carburetor is a replacement for the original HL-90 model and offers several improvements, making it an excellent choice for those seeking optimal engine performance.

The HL-90A carburetor features a circular, cast aluminum body with a durable, chrome-plated brass float bowl. The float bowl has a generous 11-ounce capacity, ensuring a consistent fuel supply to the engine and reducing the need for frequent refueling. The float bowl also incorporates an easy-to-access drain plug, which facilitates easy draining and maintenance.

The carburetor utilizes a vacuum-operated, automatic choke system that ensures easy starting, even in cold conditions. It features a needle and seat jet design, which allows for precise fuel mixture adjustments. The needle jet can be adjusted from the outside of the carburetor, providing quick and easy tuning for various engine conditions.

The HL-90A carburetor comes with a 0.040-inch main jet, a 0.018-inch idle jet, and a 0.020-inch needle, providing a starting fuel mixture of approximately 16:1 (air:fuel ratio). However, these jet sizes can be easily adjusted to fine-tune the carburetor for different engine conditions and fuel types.

The carburetor also includes a float level adjustment screw, which allows for easy adjustment of the float height and fuel level. This feature ensures that the carburetor maintains an ideal fuel level, providing consistent engine performance and reducing the risk of flooding or lean running conditions.

The HL-90A carburetor is designed to be easy to install, with a straightforward mounting system and accessible adjustment screws. The kit includes a gasket and hardware for installation, making it a convenient and hassle-free replacement option for those seeking improved engine performance.

Overall, the Tillotson HL-90A carburetor is a high-quality, versatile carburetor that offers precise fuel mixture control, easy installation, and durable construction. Its ability to be easily tuned for various engine conditions and fuel types makes it an excellent choice for those seeking optimal engine performance in their power equipment applications.

The Tillotson HL-90A carburetor is a popular choice among RC hobbyists for its use in nitro-powered RC cars and trucks. Here are some pros and cons to help you make an informed decision on whether to buy this carburetor:

Pros:

1. High Performance: The HL-90A is known for its high performance capabilities. It provides excellent fuel atomization and air-fuel mixture for efficient combustion, leading to increased power and improved engine response.

2. Adjustability: This carburetor offers a wide range of adjustability, allowing users to fine-tune the idle, main jet, and needle for specific engine conditions and fuel types.

3. Durability: The HL-90A is made of high-quality materials and is designed to withstand the rigors of RC racing. It features a robust construction and is resistant to wear and tear.

4. Easy to Install: The installation process of the HL-90A is relatively straightforward, and the carburetor comes with clear instructions to make the process even easier.

Cons:

1. Complexity: The HL-90A is a complex carburetor, and it may require some expertise to tune and set up correctly. This could be a challenge for beginners or those with limited experience.

2. Price: Compared to other carburetors in its class, the HL-90A can be quite expensive. This may be a deterrent for some hobbyists who are working with a limited budget.

3. Maintenance: The HL-90A requires regular maintenance, such as jetting and needle adjustments, to ensure optimal performance. This can be time-consuming and may add to the overall cost of ownership.

Conclusion:

The Tillotson HL-90A is a high-performance carburetor that offers a wide range of adjustability and durability. However, its complexity and high price point may be a challenge for some hobbyists. Ultimately, if you're looking for a carburetor that can provide excellent power and performance for your nitro-powered RC car or truck, the HL-90A is an excellent choice. But, if you're a beginner or have a limited budget, you may want to consider other options.

Recommendation:

If you're a serious RC racer looking for top-tier performance, the Tillotson HL-90A is an excellent choice. However, if you're a beginner or have a limited budget, you may want to consider other options, such as the Mikuni HB Series or the Woto Carburetor. These carburetors offer good performance at a more affordable price point and may be easier to set up and maintain for beginners. Ultimately, the choice depends on your specific needs and budget.

Details:

Carb is incomplete as sold for parts only. Here is a Tillotson HL-90A carburetor. Buyer pays for shipping 1.5#. I don't know much about it myself, so examine the photos for condition.

part #: hl90a price

  • $19.99

specifications carbcoon:

  • brand: Tillotson
  • mpn: Hl90a
  • type: Carburetor
  • country of origin: United States

seller carbcoon:

  • rating: 100.0%
  • city: Petersburg, Michigan
  • # reviews: 4522

offer carbcoon:

  • quantity: 1
  • availability: In Stock
  • started: June 10, 2026
  • sold: 0
  • options: Ship-to-home

shipping carbcoon:

  • class: Standard
  • transit: 5-12 Days
  • cost: $7.90
  • type: Calculated
  • carrier: USPS
  • service: USPS Ground Advantage

returns carbcoon:

  • policy: Returns Accepted
  • time: 14 Days
  • paid by: Buyer

general carbcoon:

  • Car Truck Parts Accessories > Air Fuel Delivery > Carburetors
  • condition: Used

payments carbcoon:

  • other
  • credit card: Mastercard
  • wallet: Google-pay
type: carburetor, country of origin: united states,
category: auto parts > car truck parts accessories > air fuel delivery > carburetors, sku: 11574451628142711,

Tillotson HL90A Is Similar To:

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1 offer $19.99 USD
  • Offer #1: $19.99 price + $7.90 shipping estimate = $27.89* total. Carb is incomplete as sold for parts only. Here is a Tillotson carburetor.+$7.90 shipping

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