Dyna S Ignition Instructions: A Comprehensive Guide
This guide details the installation of Dyna S electronic ignition systems (1970+ Harley-Davidson models), replacing points or existing systems, and ensuring optimal performance.
Dyna S electronic ignition systems represent a significant upgrade for Harley-Davidson motorcycles, offering enhanced reliability and performance compared to traditional point-based ignition. These systems are meticulously manufactured using high-quality components, ensuring durability and consistent operation. The Dyna S eliminates the need for routine point adjustments and maintenance, a common concern with older ignition setups.
This comprehensive guide provides detailed instructions for installing and configuring a Dyna S ignition on 1970 and later Harley-Davidson models. It’s designed for both experienced mechanics and those new to motorcycle ignition systems. Proper installation is crucial for optimal performance and rider safety, and this document aims to simplify the process. Understanding the benefits and features of the Dyna S system is the first step towards a smoother, more powerful ride.
Understanding the Benefits of Electronic Ignition
Switching to an electronic ignition system like Dyna S offers numerous advantages over traditional point-based ignitions. Primarily, electronic systems provide a more consistent and powerful spark, leading to improved engine starting, smoother operation, and increased horsepower. The elimination of points removes a frequent maintenance item, reducing downtime and ensuring reliable performance.
Dyna S systems are designed to be highly accurate and durable, minimizing the risk of ignition failure due to worn or fouled points. Furthermore, electronic ignition is less susceptible to environmental factors like moisture and vibration. By integrating the electronics into the pickups, the Dyna S simplifies the system, eliminating the need for a separate ignitor module. This results in a cleaner, more efficient, and dependable ignition setup for your Harley-Davidson.
Compatibility: Harley-Davidson Models (1970+)
Dyna S ignition systems are broadly compatible with Harley-Davidson motorcycles manufactured from 1970 onwards. This encompasses a wide range of models, including but not limited to, various iterations of the Electra Glide, Road King, Dyna Glide, and Sportster lines. However, specific fitment can vary depending on the year and model, so verifying compatibility with Dyna’s fitment guide is crucial before purchase.
While generally applicable to post-1970 bikes, it’s important to note that some custom applications or heavily modified motorcycles may require additional considerations. The Dyna S systems are designed as direct replacements for stock point ignitions or upgrades from earlier electronic systems. Proper installation, as outlined in these instructions, ensures optimal performance and reliability across the compatible Harley-Davidson range.
Installation Process: Step-by-Step
Begin by removing the original point ignition, then install the Dyna S assembly and rotor. Wiring and timing adjustments follow for a complete upgrade.
Removing the Original Point Ignition System
Before installing the Dyna S ignition, carefully remove the existing point-based system. Begin by disconnecting the battery to prevent shorts. Remove the ignition cover and note the position of the points, condenser, and coil wiring for reassembly reference if needed. Disconnect the wires from the points and condenser. Unscrew and remove the points plate assembly, taking care not to damage the camshaft gear.
Inspect the camshaft gear for wear. Clean the mounting surface thoroughly to ensure proper seating of the new Dyna S unit. Remove any remaining grease or debris. Pay attention to the original timing marks, as these will be crucial during the installation and timing phases of the Dyna S system. Proper removal sets the stage for a smooth and successful installation.
Installing the Dyna S Ignition Assembly
With the original points system removed, install the Dyna S ignition assembly. Carefully position the new plate onto the camshaft gear, ensuring it seats flush against the mounting surface. Secure the assembly with the provided screws, tightening them evenly to prevent warping or misalignment.
Double-check that the assembly rotates freely without binding. The Dyna S system’s pickups must not contact the rotor during installation. Verify proper clearance before proceeding. Now, prepare for rotor mounting, which is the next critical step. Ensure all connections are secure and that the assembly is stable before moving forward. A properly installed assembly is fundamental for reliable ignition.
Mounting the Rotor
Carefully slide the rotor onto the camshaft shaft, ensuring it engages properly with the woodruff key to prevent slippage. The rotor should spin freely without any noticeable drag. Secure the rotor with the provided retaining nut, tightening it to the manufacturer’s specified torque.
Avoid over-tightening, as this could damage the rotor or camshaft. Once secured, manually rotate the engine several times to confirm the rotor spins smoothly and doesn’t interfere with the Dyna S ignition assembly’s pickups. Proper rotor mounting is crucial for accurate timing and consistent spark delivery. Inspect for any wobble or looseness before proceeding to the wiring stage.
Wiring the Dyna S Ignition
Connect the Dyna S ignition to the coil, eliminating the ignitor due to integrated electronics, and follow the provided wiring diagram carefully for proper function.
Connecting to the Ignition Coil
Proper connection to the ignition coil is crucial for a functioning Dyna S system. Typically, the Dyna S ignition module will have a designated wire for connection to the positive (+) side of the ignition coil. Ensure this connection is secure and free from corrosion. The negative (-) side of the coil will generally connect to the motorcycle’s ground.
Verify the coil’s resistance using a multimeter to ensure it falls within the manufacturer’s specifications. An incorrect coil can lead to weak spark or system failure. Pay close attention to wire polarity during connection; reversing the polarity can damage the ignition module. Double-check all connections before proceeding to the timing stage, as a loose or incorrect connection can cause intermittent issues.
Wiring Diagram Overview
The Dyna S ignition simplifies wiring by integrating electronics, eliminating the need for a separate igniter module. A typical wiring setup involves connecting the Dyna S module’s power wire to a switched 12V source – one that activates with the ignition switch. The ground wire must be securely connected to the motorcycle’s frame or a known good ground point.
The output wire connects directly to the ignition coil’s positive terminal. Carefully consult the specific wiring diagram included with your Dyna S kit, as variations may exist depending on the model. Ensure all connections are properly insulated to prevent shorts. A clean and organized wiring layout is essential for reliable operation and easier troubleshooting.
Eliminating the Ignitor (Due to Integrated Electronics)
A key advantage of the Dyna S ignition system is its self-contained design; it incorporates the ignition’s electronic control directly into the pickup units. This crucial feature allows for the complete removal of the original igniter module, a common component in older Harley-Davidson ignition systems. Disconnecting and removing the igniter simplifies the wiring process and eliminates a potential point of failure.
Ensure the igniter’s wiring is properly terminated and insulated after removal to prevent accidental shorts. By integrating the electronics, Dyna S provides a more reliable and streamlined ignition solution, reducing the number of components and potential issues. This simplification contributes to the system’s overall ease of installation and maintenance.
Timing the Dyna S Ignition
Proper timing is crucial for optimal performance. This section covers initial setup, test light verification, and troubleshooting a constantly lit test light during timing procedures.
Initial Timing Setup
Begin by locating the timing marks on the flywheel and the stationary engine case. Rotate the engine clockwise until the timing mark aligns with the specified degree marking – typically around 30-40 degrees Before Top Dead Center (BTDC) for initial setup.
Loosen the mounting bolts for the Dyna S ignition plate, allowing for rotational adjustment. Carefully rotate the plate until the impulse signal (as indicated by a timing light) falls precisely on the desired timing mark. Once aligned, securely tighten the mounting bolts to prevent movement.
Double-check the timing alignment after tightening, as the tightening process can sometimes shift the plate slightly. Accurate initial timing is fundamental for smooth engine operation and preventing potential damage.
Using a Test Light for Timing Verification
Connect a test light to the negative side of the ignition coil. With the engine off, rotate it slowly clockwise by hand. Observe the test light; it should illuminate briefly as the timing mark approaches Top Dead Center (TDC). This confirms the Dyna S ignition is generating a signal.
Continue rotating the engine and note the point at which the light extinguishes. This indicates the ignition firing point. Adjust the ignition plate as needed to align this extinguishing point with the desired timing mark on the flywheel.
A consistently bright test light signals a potential issue – likely a bad connection within the system. Inspect all wiring and connections thoroughly before proceeding.
Addressing a Constantly Bright Test Light (Troubleshooting)
A test light remaining constantly illuminated during timing indicates a problem. This typically points to a short circuit or a faulty ground within the Dyna S ignition system’s wiring. Immediately cease timing procedures and begin troubleshooting.
First, meticulously inspect all wiring connections. Ensure they are clean, tight, and free from corrosion. Pay close attention to the ground connections, verifying they are securely fastened to the frame. A poor ground is a common culprit.
If connections appear sound, carefully examine the wiring harness for any damaged insulation or exposed wires that could be causing a short. Replace any damaged wiring as needed. The quality of parts is crucial.
Testing and Verification
Post-installation, verify ignition timing and system specifications. Troubleshoot any issues, and consider coil replacement for optimal performance and reliability of the Dyna S.
Checking Ignition System Specifications
After installation, meticulously check the Dyna S ignition system’s specifications to ensure proper operation and peak performance. Begin by verifying the primary resistance of the ignition coil, comparing the reading to the manufacturer’s recommended range – typically between 1.2 and 1.8 ohms. Next, assess the coil’s secondary resistance, which should fall within 6,000 to 30,000 ohms.
Crucially, confirm the air gap between the Dyna S rotor and the pickup plate; a gap of .005” to .010” is generally optimal. Use a feeler gauge for accurate measurement. Finally, with the engine off, use a multimeter to check for a consistent 12-volt supply to the ignition module. Deviations from these specifications may indicate wiring issues, a faulty coil, or incorrect component settings, requiring further investigation and adjustment for reliable ignition.
Troubleshooting Common Issues
If experiencing issues with your Dyna S ignition, systematic troubleshooting is key. A consistently bright test light during timing often signals a poor ground connection – meticulously check all ground wires for cleanliness and secure attachment. Intermittent engine stalling or misfires can stem from loose wiring connections; inspect all connectors for corrosion or damage.
If the engine fails to start, verify the battery voltage and ensure the ignition coil is receiving power. A weak spark may indicate a failing coil or incorrect air gap. Remember, many operational problems arise from improper installation or intermittent connections. Carefully review the wiring diagram and re-check all connections before considering component replacement.
Coil Considerations & Replacement
The ignition coil is a critical component of the Dyna S system, directly impacting spark strength and engine performance. While the Dyna S can function with the original coil, upgrading to a high-performance coil is often recommended, especially when addressing ignition issues or seeking increased power. Ensure the new coil’s primary resistance matches the Dyna S specifications for optimal compatibility.
When replacing the coil, carefully inspect the mounting hardware and ensure a secure connection. A faulty coil can manifest as weak spark, misfires, or a no-start condition. Always test the new coil before final installation to confirm proper operation. Remember, upgrading the coil is beneficial even when simply replacing a points system.
Important Safety Information
Professional installation is highly recommended for the Dyna S ignition, as rider safety relies on correct setup. Quality parts ensure reliable operation and longevity.
Professional Installation Recommended
Due to the critical nature of ignition timing and electrical system integrity, we strongly advise professional installation of the Dyna S electronic ignition system. Improper installation can lead to diminished performance, potential engine damage, and, most importantly, compromise rider safety. A qualified motorcycle technician possesses the necessary expertise and tools to ensure a correct and secure installation.
This is particularly crucial for custom applications or if you lack extensive experience with motorcycle electrical systems. The Dyna S system, while designed for straightforward replacement of points or older electronic ignitions, requires precise wiring and timing adjustments. V-Twin Manufacturing explicitly states that rider safety depends on proper installation, and they accept no responsibility for issues arising from incorrect procedures.
Rider Safety and Proper Installation
Your safety while riding directly correlates with the correct installation of the Dyna S electronic ignition system. A malfunctioning ignition can cause unexpected engine stalls, difficulty starting, or reduced power, all of which pose significant risks on the road. Precise timing and secure connections are paramount to reliable operation.
Carefully follow all instructions provided within this guide, and double-check all wiring connections before starting the motorcycle. Intermittent connections are a common source of operational problems, highlighting the importance of meticulous work. Remember, the Dyna S system is manufactured with high-quality parts, but its performance relies on a flawless installation. Prioritize safety and accuracy throughout the entire process to enjoy a dependable and worry-free riding experience.
Quality of Parts and Materials
The Dyna S Electronic Ignition is built utilizing the highest quality components and materials available, reflecting a commitment to durability and performance. Each part undergoes careful scrutiny during manufacturing to ensure it meets stringent standards. This dedication minimizes the likelihood of premature failure and maximizes the system’s lifespan, providing riders with long-lasting reliability.
However, even with superior parts, operational issues frequently stem from improper installation or loose connections. Therefore, meticulous attention to detail during the installation process is crucial. While the Dyna S system is designed for robust performance, its full potential is only realized when combined with careful workmanship. Investing in a quality installation, whether self-performed or by a professional, safeguards your investment and ensures optimal functionality.
Dual Fire Systems (VT Part No. 32-7778 & 32-0801)
These Dyna S dual fire systems are custom applications; rider safety relies on proper installation by a trained motorcycle technician.
Custom Application Considerations
When utilizing Dyna S dual fire systems (VT Part No. 32-7778 & 32-0801) in non-standard Harley-Davidson applications, meticulous attention to detail is paramount. These kits are designed for custom builds and require a thorough understanding of ignition timing and wiring principles. Ensure compatibility with your specific engine configuration, including compression ratio and camshaft specifications.
Proper grounding is crucial for optimal performance and to prevent electrical interference. Verify all connections are secure and utilize high-quality wiring. Consider the coil’s output and ensure it matches the requirements of your engine. V-Twin Manufacturing explicitly states that improper installation voids any warranty and compromises rider safety. Always consult with a qualified motorcycle technician experienced in custom ignition systems before and during installation.
V-Twin Manufacturing Disclaimer
V-Twin Manufacturing (V-Twin Mfg.) explicitly disclaims any and all liability for damages or injuries resulting from the improper installation or use of Dyna S electronic ignition systems. This includes, but is not limited to, damage to the motorcycle, personal injury, or loss of life.
These ignition systems are designed for installation by knowledgeable and trained motorcycle technicians. Rider safety is directly dependent on correct installation procedures and adherence to all provided instructions. V-Twin Mfg. assumes no responsibility for installations performed by unqualified individuals. Modifying the system or using non-approved components will void the warranty and further absolve V-Twin Mfg. of any liability. Always prioritize safety and professional expertise.