MIKUNI 45-4 Smoothbore Carb Total Kit Cam 747103544030

( Brand: Mikuni ), ( Manufacturer Part Number: 45-4 ), ( Type: Auto ), ( UPC: 747103544030 )

Review MIKUNI Smoothbore Carb Total Kit Harley Cam fits TWIN HSR45 1999–2006

Introducing the Mikuni 747103544030 45-4 HSR45 Smoothbore Carburetor Total Kit, specifically designed for Harley-Davidson Twin Cam engines from the years 1999 to 2006. This complete kit comes equipped with all the essential components needed for a seamless carburetor installation or replacement.

The heart of this kit lies in the 45mm HSR45 Smoothbore Carburetor. Featuring a polished finish and Mikuni's proprietary smoothbore design, this carburetor ensures optimal airflow and improved throttle response. The smoothbore design eliminates the need for an air cleaner element, resulting in a more streamlined appearance.

This kit includes a Mikuni TPS (Throttle Position Sensor) and wiring harness for electronic fuel injection systems. The TPS allows for precise fuel delivery and adjustment, ensuring optimal engine performance. Additionally, the kit comes with a Mikuni ISC (Idle Speed Control) assembly for easy adjustment of idle speed.

The Mikuni 747103544030 kit also includes various hardware components such as mounting brackets, gaskets, and bolts for a secure and proper installation. The kit is compatible with Harley-Davidson Twin Cam engines from 1999 to 2006, making it a versatile solution for a wide range of motorcycles.

The Mikuni 45-4 HSR45 Smoothbore Carburetor Total Kit is an excellent choice for riders seeking improved engine performance, smoother throttle response, and a sleeker appearance. With its high-quality components and ease of installation, this kit is an essential upgrade for any Harley-Davidson Twin Cam enthusiast.

Mikuni 747103544030 45-4 HSR45 Smoothbore Carb Total Kit for Harley Twin Cam (1999-2006): A Detailed Analysis

The Mikuni 747103544030 45-4 HSR45 Smoothbore Carb Total Kit is an aftermarket replacement for the original carburetor setup on Harley-Davidson Twin Cam engines from 1999 to 2006. This kit offers several advantages over the stock carburetors, including better fuel efficiency, smoother power delivery, and improved throttle response. In this analysis, we will discuss the pros and cons of buying this Mikuni carburetor kit.

1. Improved Performance: The Mikuni HSR45 carburetor kit offers better fuel atomization, which results in a more complete combustion process. This leads to improved power delivery and throttle response.

2. Enhanced Fuel Economy: Due to the more efficient fuel delivery, the Mikuni carburetor kit can lead to better fuel economy, which is an essential factor for many riders.

3. Smoother Idle: The Mikuni carburetor kit provides a much smoother idle compared to the stock carburetors. This results in a more enjoyable riding experience and can help reduce engine vibration.

4. Easier Tuning: Mikuni carburetors are known for their ease of tuning. The HSR45 kit comes with a vacuum secondary system, which makes it easier to tune for various riding conditions and altitudes.

1. Cost: The Mikuni 747103544030 45-4 HSR45 Smoothbore Carb Total Kit is more expensive than the stock carburetor setup. This could be a significant deterrent for some riders on a budget.

2. Installation Complexity: Installing the Mikuni carburetor kit can be more complicated than swapping out the stock carburetors. It may require some additional modifications, such as adapters for the throttle cables and fuel lines.

3. Potential Compatibility Issues: Although the Mikuni HSR45 carburetor kit is designed to fit Harley-Davidson Twin Cam engines from 1999 to 2006, some riders have reported compatibility issues. These problems can include incorrect jetting or issues with the vacuum secondary system.

The Mikuni 747103544030 45-4 HSR45 Smoothbore Carb Total Kit offers several advantages over the stock carburetors for Harley-Davidson Twin Cam engines (1999-2006). These benefits include improved performance, enhanced fuel economy, smoother idle, and easier tuning. However, the higher cost, installation complexity, and potential compatibility issues may deter some riders.

If you are looking for significant improvements in power delivery, throttle response, and fuel efficiency, the Mikuni carburetor kit is an excellent investment. However, if you are on a tight budget or not comfortable with the installation complexity, you may want to consider other options. Ultimately, the decision to purchase the Mikuni HSR45 carburetor kit depends on your individual preferences and priorities as a rider.

specifications iodacarb:

• for models: Hsr45, Twin
• for makes: Harley
• for years: 1999-2006
• brand: Mikuni
• manufacturer part number: 45-4
• type: Auto
• upc: 747103544030

shipping iodacarb:

• service: Standard
• type: Fixed
• cost: $0.00
• transit: 2-4 Days
• class: Standard

payments iodacarb:

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

offer iodacarb:

• options: Ship-to-home
• availability: In Stock
• started: October 21, 2025
• quantity: 1
• sold: 0

seller iodacarb:

• # reviews: 12792
• rating: 99.3%

returns iodacarb:

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

general iodacarb:

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

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