( Brand: Tillotson ), ( Type: Carburetor ), ( Engine Type: 4-stroke ), ( Choke Type: Mechanical ), ( Machine Type: Street Motorcycle ), ( Oe/oem Part Number: Hd ), ( Manufacturer Part Number: 20A/78A ), ( Features: Jetting )
Review TILLOTSON 20a/78a Vintage Pair Of Harley Davidson Hd Carburetors 60s 20a 78a fits 70S
Tillotson 20A/78A carburetors are vintage components that were widely used on Harley-Davidson motorcycles during the 1960s and 1970s. These carburetors are recognized for their distinctive design and efficient performance.
The 20A/78A carburetor is a single-barrel, downdraft carburetor. It features a 2-inch venturi throat, which allows for a generous airflow to the engine. The carburetor is equipped with a float-fed fuel system, ensuring a consistent fuel mixture is delivered to the engine for optimal combustion. The 78A choke system is integrated into the carburetor, which facilitates easy starting, especially in cold weather conditions.
The design of the 20A/78A carburetor is characterized by the smooth, rounded contours of the body, which not only contribute to its aesthetic appeal but also help to reduce air turbulence and improve overall engine performance. The carburetor is mounted on the motorcycle with the intake manifold, and the throttle cable is connected to the carburetor's throttle arm, enabling the rider to control the engine's power output.
The 20A/78A carburetor is known for its ease of tuning and adjustability. It comes with several adjustment points, including the main jet, needle jet, and idle mixture screws, which allow riders to fine-tune the carburetor to suit the specific needs of their Harley-Davidson motorcycle. Additionally, the carburetor's design allows for easy access to these adjustment points, making it a popular choice among enthusiasts and restorers.
The Tillotson 20A/78A carburetor is a must-have component for any Harley-Davidson motorcycle from the 1960s and 1970s. Its unique design, efficient performance, and ease of tuning make it a favorite among vintage motorcycle enthusiasts. Whether you're restoring a classic Harley-Davidson or simply looking to upgrade your bike's carburetor, the Tillotson 20A/78A is an excellent choice.
Tillotson 20A/78A carburetors are a popular choice for Harley-Davidson motorcycles from the 1960s and 1970s. These carburetors offer several benefits and drawbacks, making it essential to weigh the pros and cons before making a purchase.
Pros:1. Authenticity: Tillotson 20A/78A carburetors are original equipment for many Harley-Davidson models, ensuring a correct and authentic restoration.
2. Performance: These carburetors provide excellent performance, allowing for smooth idling, improved throttle response, and increased power.
3. Availability: Tillotson carburetors are widely available through various sources, including dealers, online retailers, and salvage yards.
4. Affordability: Compared to newer, aftermarket options, Tillotson 20A/78A carburetors are often more affordable, making them an attractive choice for budget-conscious restorers.
Cons:1. Vulnerability to Contamination: Tillotson carburetors, being older models, are more susceptible to fuel contamination, which can lead to issues like rough idling, stalling, and poor performance.
2. Complexity: These carburetors can be more complex to tune and adjust compared to modern alternatives, requiring a higher level of expertise and patience.
3. Parts Availability: While the carburetors themselves are widely available, some replacement parts may be harder to find or more expensive.
4. Maintenance: Tillotson 20A/78A carburetors require more frequent maintenance, including regular cleaning and adjustments, to ensure optimal performance.
Conclusion:Tillotson 20A/78A carburetors offer a unique blend of authenticity, performance, and affordability for Harley-Davidson motorcycles from the 1960s and 1970s. However, they also come with certain drawbacks, such as vulnerability to contamination, complexity, and parts availability. Ultimately, the decision to purchase a Tillotson carburetor depends on the individual's preferences, expertise, and budget. If you're willing to invest the time and resources into proper maintenance and tuning, a Tillotson carburetor can provide excellent performance and an authentic restoration experience.
Recommendation:For those seeking an authentic Harley-Davidson restoration, a Tillotson 20A/78A carburetor is an excellent choice. To ensure a successful installation, consider purchasing the carburetor from a reputable dealer, thoroughly clean and tune it before installation, and be prepared for regular maintenance. Additionally, consider investing in a good quality fuel filter and storage container to minimize the risk of fuel contamination.
part # 20a78a price
- $112.50
specifications iodacarb:
- for models: 70s
- for makes: Harley, Davidson
- brand: Tillotson
- type: Carburetor
- engine type: 4-stroke
- choke type: Mechanical
- machine type: Street Motorcycle
- oe/oem part number: Hd
- manufacturer part number: 20A/78A
- features: Jetting
payments iodacarb:
- other
- credit card: Diners-club
- wallet: Paypal
general iodacarb:
- condition: Used
- Motorcycle Scooter Parts Accessories > Air Intake Fuel Delivery > Carburetors
shipping iodacarb:
- class: Standard
- service: USPS Ground Advantage
- transit: 4-8 Days
- type: Fixed
- carrier: USPS
- cost: $14.99
seller iodacarb:
- # reviews: 3396
- rating: 100.0%
offer iodacarb:
- quantity: 1
- sold: 0
- availability: In Stock
- options: Ship-to-home
- started: August 22, 2025
returns iodacarb:
- paid by: Seller
- time: 30 Days
- policy: Returns Accepted
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1 offer $112.50 USD
- Offer #1: $112.50 price + $15.00 delivery = $127.50* total.+$15.00 shipping