fits model: Twin. make: Harley. year: 2004–2005.

( Brand: S&s Cycle ), ( Manufacturer Part Number: 55-1220 ), ( Part Type: Ignition Cam )
The 2004-2005 Harley-Davidson Cycle Twin Ignition Kit, model number 55-1220, is an essential upgrade for your Harley-Davidson motorcycle. This kit is specifically designed for the ignition system of these models, providing a reliable and powerful spark to ignite the fuel-air mixture in the engine's cylinders.
The kit includes all the necessary components for a smooth and easy installation. Key components include the ignition coil, spark plug wires, and a high-performance ignition module. The ignition coil is a high-output unit, providing a stronger magnetic field to generate the necessary spark. The spark plug wires are made of high-quality materials, ensuring a clean and consistent spark for optimal engine performance. The ignition module, a critical component, is responsible for controlling the ignition timing and is designed to provide reliable operation even in harsh conditions.
The installation process is straightforward, with clear and concise instructions included in the kit. No additional tools are required beyond those commonly found in a home garage. The kit is designed to be a direct replacement for the original ignition system, ensuring a seamless integration with your Harley-Davidson.
Upgrading your Harley-Davidson's ignition system with the 2004-2005 Cycle Twin Ignition Kit, model 55-1220, offers several benefits. You can expect improved engine performance, with increased horsepower and torque. The kit also provides better fuel efficiency, as the more efficient ignition system allows for a more complete combustion of the fuel-air mixture. Additionally, the kit can help extend the life of your engine, as the improved ignition system reduces the wear and tear on internal components.
In conclusion, the 2004-2005 Harley-Davidson Cycle Twin Ignition Kit, model 55-1220, is an excellent choice for any Harley-Davidson owner looking to improve their bike's performance, fuel efficiency, and reliability. With its straightforward installation process and high-quality components, this kit is a smart investment for any Harley-Davidson enthusiast.
Pros of installing a 2004-2005 Harley-Davidson Twin Ignition Kit (Ist 55-1220):1. Improved Performance: The twin ignition kit can provide a significant increase in power and torque, improving the overall performance of your Harley-Davidson bike.
2. Enhanced Fuel Efficiency: By providing more precise ignition timing, the kit can help improve fuel efficiency, saving you money on gas over time.
3. Better Engine Protection: The twin ignition kit can reduce engine knocking and pinging, which can help protect your engine from damage.
4. Smoother Ride: The improved performance and reduced engine noise can lead to a smoother and more enjoyable riding experience.
Cons of installing a 2004-2005 Harley-Davidson Twin Ignition Kit (Ist 55-1220):1. Installation Complexity: Installing the kit can be a complex process, requiring specialized tools and knowledge of electrical systems. This may require the help of a professional mechanic.
2. Cost: The kit and installation can be expensive, potentially costing several hundred dollars.
3. Potential Compatibility Issues: The kit may not be compatible with all Harley-Davidson models, so it's important to confirm compatibility before purchasing.
4. Warranty Issues: Installing aftermarket parts can sometimes void the warranty on your bike, so it's important to check with your Harley-Davidson dealer beforehand.
Conclusion:Installing a 2004-2005 Harley-Davidson Twin Ignition Kit (Ist 55-1220) can provide significant performance improvements and fuel efficiency benefits, but the installation process can be complex and expensive. It's important to weigh the pros and cons and consider your budget and technical abilities before making a decision. If you're not comfortable with the installation process, it may be worth considering hiring a professional mechanic to do the job.
Recommendation:If you're looking to improve the performance of your Harley-Davidson and are comfortable with the installation process, the 2004-2005 Twin Ignition Kit (Ist 55-1220) can be a worthwhile investment. However, it's important to do your research and make sure the kit is compatible with your specific model before purchasing. If you're unsure, consider consulting with a Harley-Davidson dealer or a professional mechanic to get their advice.
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Note not for fuel injected model's.
This occasionally happens, and is rare.
Note not recommended for kick start applications unless a cam position sensor is used.
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Notes ist ignition modules manufactured after serial number begins with e or higher letter already contain software to support the guardian diagnostic system.
This occasionally happens, and is rare.
Modules manufactured after serial number begins wither higher letter are compatible with model's in addition to the other specified applications.
Expedited shipping via USPS priority mail with delivery confirmation is available.