The Dyna 2000i ignition system is a programmable, high-performance ignition module designed for use with Harley-Davidson motorcycles, particularly models such as the 1998–2003 Sportster and other carbureted configurations. It is engineered to improve engine performance, provide enhanced control over ignition timing, and ensure reliability in both street and racing conditions. This article provides a detailed overview of the Dyna 2000i's key features, installation recommendations, wiring considerations, and troubleshooting guidance, based on technical advice and user experiences shared across multiple sources.
Overview of the Dyna 2000i Ignition System
The Dyna 2000i is a digital ignition module that replaces the factory ignition system in certain Harley-Davidson models. It offers several advanced features not typically found in stock systems, including:
- Data recording capabilities such as total engine hours, wide open throttle time, number of engine starts, maximum RPM, and time near the rev limit.
- Active dwell control, which adjusts coil current to maintain maximum spark energy across the entire RPM range.
- Single-fire operation at low RPM, making engine cranking and idling smoother.
- Compatibility with various ignition configurations, including single or dual fire, and single or dual plug heads.
- PC programmability, allowing users to customize ignition curves to match their specific engine setup and riding conditions.
- Built-in rev limiter and tach signal driver, enabling integration with shift lights, automatic shifters, and other accessories.
The module is also constructed with durability in mind. The wiring harness uses TXL cross-linked polyethylene automotive wire, which is highly resistant to abrasion, heat, and chemical exposure. A high-temperature glass braid jacket further enhances the harness's strength and appearance.
Installation Recommendations and Routing Tips
Installing the Dyna 2000i requires careful attention to wiring, routing, and connection. Based on user reports and installation guides, the following steps and considerations are recommended:
1. Route Wires Along the Stock Path
Many users have successfully installed the Dyna 2000i by following the original routing of the stock ignition system. For example, one user described routing the harness under the engine to the left side, then up between the engine and transmission on the primary side, and finally into the area beneath the seat where the fuse box and OEM ignition module were located. This method ensures that connections remain accessible and that the wiring is kept as hidden as possible.
2. Splice into Specific Wires for VOES and Tach
The VOES (Variable Overdrive Electronic Shift) wire is a common point of concern. According to one user, it is typically a purple wire running from the ignition module to the VOES switch. The tach signal wire is usually pink. These wires must be spliced into using a method that maintains the integrity of the original signal and avoids signal loss or interference.
3. Avoid Use with Incompatible Ignition Modules
The Dyna 2000i should not be used in conjunction with certain third-party ignition modules, as they may cause damage or improper ignition timing. Specifically, the Crane HI-4 module (with potentiometers) is known to cause issues and is not recommended for use with the Dyna 2000i. Users who attempt to use this module with the 2000i often end up damaging the kit.
Similarly, the Ultima ignition module is not suitable for the 2000i system unless it is programmed with a curve that closely matches the Dyna 2000i's Curve 4. The Ultima module has different and more aggressive curves that can be dangerous for pistons.
For those using the Dyna 2000 or 2000i, the recommendation is to static time the module using the LED as described in the module's instructions and set it to Curve 4 for optimal performance and safety. This curve is designed to provide a soft advance curve that avoids abrupt timing changes and ensures smoother engine operation.
4. Consider the Pickup and Coil Installation
The installation of the pickup and coil is another critical step. Users who have experienced issues with no spark at the plug often trace the problem back to incorrect pickup or coil installation or wiring errors. One user noted that the pickup was already wired when purchased used, and while all voltage readings seemed correct, there was no spark at the plug. This highlights the importance of verifying the integrity of the pickup and coil before and after installation.
A key step in pickup installation is to ensure that the timing adjuster is properly installed. If the pickup is installed without this adjuster, the ignition timing may be off, leading to no spark or erratic engine behavior. The pickup should be installed by removing the existing round assembly (typically secured with three Phillips screws) and replacing it with the new unit.
5. Use the Correct Ignition Curve
Selecting the correct ignition curve is crucial for both performance and engine longevity. The Dyna 2000i offers multiple programmable curves, and the recommended setting is often Curve 4, especially when used with engine kits or high-performance modifications. This curve provides a balanced advance that avoids abrupt changes and keeps the engine running smoothly under various load conditions.
For those using other ignition systems such as the DTT 1005, the DTT 1005S-EX, or the Ultima, it is essential to match the curve as closely as possible to the Dyna 2000i's Curve 4. If the curves are too aggressive or do not align with the engine's requirements, it can lead to detonation, overheating, or other engine damage.
Troubleshooting and Common Issues
Despite the robust design of the Dyna 2000i, users may encounter issues such as no spark at the plug, erratic engine behavior, or intermittent failures. The following are common troubleshooting steps and considerations:
1. Verify Voltage and Ground Connections
One of the first steps in troubleshooting is to check all voltage and ground connections. The coils should have 12 volts on all four small wires, and the kill switch should be able to cut power to the coils. Ground connections should be tested for continuity and must be free from corrosion or poor contact.
A user who experienced no spark at the plug found that all voltage readings were correct and grounds were good. However, the issue turned out to be a faulty ignition module or incorrect pickup wiring. In such cases, it may be necessary to test the ignition module itself using a timing light or other diagnostic tool.
2. Check for Error Indications
The Dyna 2000i includes a status LED that provides feedback on the module's health. If the module detects an issue such as a shorted coil, mis-wired harness, or incorrect coil type, it will immediately shut off and rapidly flash the LED to indicate the fault. This is a built-in safety feature to prevent further damage to the ignition system or the engine.
If the LED is flashing rapidly and the engine does not start, it is important to check the coil connections and ensure that the correct coil type is being used. The module is designed to work with specific coil types, and using an incompatible coil can lead to failure.
3. Ensure Correct Pickup Installation
The pickup is a critical component of the ignition system, and incorrect installation can lead to no spark or erratic timing. If the pickup was purchased used and is already wired, it is still important to verify that the wiring is intact and that the pickup is correctly positioned.
Some users have reported that they installed the pickup without the timing adjuster, leading to incorrect ignition timing. This can cause the engine to run poorly or not at all. The pickup should be installed according to the manufacturer's instructions, and the timing should be verified using a timing light or other diagnostic method.
4. Use Manufacturer-Recommended Components
Using components that are not recommended by the manufacturer can lead to compatibility issues and performance problems. For example, using the Dyna 2000i with a stock CV40 carburetor requires specific jetting recommendations. A starting point of a 185 main jet and 45 pilot jet is suggested, along with a 3-turn idle mixture setting. These are starting points only and may need to be adjusted based on the specific engine configuration and riding conditions.
If a Forcewinder air cleaner is used with a carburetor, it is important to consult the manufacturer for any necessary modifications. Failure to make these adjustments can lead to improper air-fuel mixture and engine performance issues.
Benefits of the Dyna 2000i
The Dyna 2000i offers several benefits over stock ignition systems, particularly in terms of performance, control, and reliability. Some of the key advantages include:
- Improved Spark Energy: The active dwell control ensures that the coil is fully energized at all RPMs, resulting in a stronger and more consistent spark.
- Enhanced Engine Response: The programmable curves allow for fine-tuning of ignition timing to match the engine's specific needs, improving throttle response and power delivery.
- Data Monitoring: The built-in data recording features provide valuable insights into engine performance, helping users track key metrics such as maximum RPM, time at WOT, and engine hours.
- Durability and Protection: The module is designed to withstand harsh conditions and includes built-in protections against mis-wiring, coil failure, and over-charging.
Conclusion
The Dyna 2000i is a powerful and flexible ignition system that offers significant performance improvements for Harley-Davidson motorcycles. Its programmable curves, data recording features, and robust construction make it a popular choice among riders and tuners alike. However, successful installation and operation require careful attention to wiring, pickup placement, and ignition curve selection.
Users should follow the manufacturer's recommendations closely, avoid incompatible ignition modules, and verify all connections before riding. In the event of issues such as no spark or erratic behavior, troubleshooting should begin with voltage and ground checks, LED status, and pickup installation.
By adhering to the installation and troubleshooting guidelines outlined in this article, users can maximize the performance and reliability of the Dyna 2000i ignition system.