Upgrading the ignition system on your Yamaha RZ350, especially with components like the IED Toomey kit, can significantly boost its performance and reliability. This guide dives deep into why you might consider this upgrade, what the IED Toomey kit offers, and how to go about installing it. Whether you're a seasoned mechanic or a passionate DIYer, this article will equip you with the knowledge to enhance your RZ350's ignition system.

Why Upgrade Your RZ350 Ignition?

Let's talk about why you'd even consider upgrading the ignition on your Yamaha RZ350. The stock ignition system, while decent for its time, can become a bottleneck as your bike ages or as you start making other performance modifications. Think of it like this: your engine is breathing better, maybe with some sweet Toomey pipes, but the old ignition is struggling to keep up, leaving power on the table.

First off, reliability is a big one. Older ignition components can degrade over time, leading to inconsistent spark, misfires, and generally poor running conditions. Nobody wants their classic two-stroke sputtering and dying on a Sunday ride, right? An upgraded ignition system, like the IED Toomey, uses modern components that are far more resistant to wear and tear, giving you peace of mind and more consistent performance.

Secondly, consider performance gains. A more powerful and consistent spark means more complete combustion in the cylinders. This translates to better throttle response, increased horsepower, and improved fuel efficiency. With a precisely tuned ignition system, your RZ350 will not only run smoother but also deliver more power throughout the rev range. It’s like waking up the sleeping beast within!

Also, think about tuning flexibility. Many modern ignition systems, including some IED Toomey setups, offer adjustable timing curves. This allows you to fine-tune the ignition timing to match your specific engine configuration and riding style. For example, if you've increased the compression ratio or changed the porting, you can adjust the timing to optimize performance and prevent detonation. This level of control is simply not possible with the stock ignition system.

Finally, there’s the benefit of easier diagnostics. Modern ignition systems often come with built-in diagnostic features that can help you troubleshoot problems quickly and accurately. Some systems even have data logging capabilities, allowing you to monitor engine parameters and identify potential issues before they become major headaches. This can save you a lot of time and frustration in the long run.

So, to sum it up, upgrading your RZ350 ignition is about more than just replacing old parts. It's about improving reliability, boosting performance, gaining tuning flexibility, and simplifying diagnostics. For many RZ350 enthusiasts, it’s a crucial step in getting the most out of their machines. Trust me; you won't regret it when you feel the difference on the open road.

What is the IED Toomey Kit?

Alright, let's break down what the IED Toomey kit actually is and why it's a popular choice for RZ350 ignition upgrades. IED, or Integrated Electronic Designs, is a company known for producing high-quality aftermarket ignition systems, particularly for two-stroke motorcycles. When you see the "Toomey" name attached, it often means the kit is designed to work exceptionally well with Toomey Racing pipes, which are a very common upgrade for the RZ350.

At its core, the IED Toomey kit replaces the stock ignition components with a modern electronic system. This typically includes a new CDI (Capacitive Discharge Ignition) unit, ignition coil(s), and sometimes a new stator or trigger coil. The CDI unit is the brains of the operation, controlling the timing and intensity of the spark. The ignition coil amplifies the voltage to create a spark strong enough to ignite the air-fuel mixture in the cylinder. The stator and trigger coil generate the electrical signals that tell the CDI when to fire the spark plug.

One of the key advantages of the IED Toomey kit is its optimized ignition timing curve. Unlike the fixed timing of the stock ignition, the IED Toomey kit features a programmed timing curve that advances or retards the ignition timing based on engine RPM and sometimes other factors like throttle position. This allows for more precise control over the combustion process, resulting in improved performance and fuel efficiency. The timing curve is often designed to complement the characteristics of Toomey Racing pipes, maximizing their performance potential.

Another benefit is the increased spark energy. The IED Toomey kit typically uses a high-output ignition coil that delivers a stronger spark than the stock coil. This ensures reliable ignition even under demanding conditions, such as high RPM or high compression. A stronger spark also helps to burn the fuel mixture more completely, reducing emissions and preventing fouling of the spark plugs.

Furthermore, the IED Toomey kit is designed for easy installation. It typically comes with all the necessary hardware and wiring connectors, making it a straightforward replacement for the stock ignition system. While some basic mechanical skills are required, the installation process is generally well-documented and can be completed in a few hours.

Finally, consider the reliability and durability. IED ignition systems are known for their robust construction and high-quality components. They are designed to withstand the harsh conditions of motorcycle engines, including heat, vibration, and electrical noise. This ensures long-lasting performance and reduces the risk of breakdowns.

In summary, the IED Toomey kit is a comprehensive ignition upgrade that replaces the outdated stock components with a modern electronic system. It offers optimized ignition timing, increased spark energy, easy installation, and improved reliability. If you're looking to unleash the full potential of your RZ350, especially with Toomey pipes, the IED Toomey kit is definitely worth considering.

Installation Guide: IED Toomey Kit on Your RZ350

Okay, guys, let's get into the nitty-gritty of installing an IED Toomey ignition kit on your RZ350. While it might seem daunting, with a little patience and the right tools, you can totally handle this in your garage. Remember, safety first! Disconnect the battery before you start messing with any electrical components.

Step 1: Gather Your Tools and Prep

Before you even think about touching your bike, make sure you've got all the necessary tools. You'll likely need a socket set, wrenches, screwdrivers (both Phillips and flathead), wire strippers, crimpers, and maybe a multimeter. Having a good set of instructions for your specific IED Toomey kit is crucial. Also, a clean workspace is your best friend here. Lay out your tools and parts so you can easily find them.

Step 2: Remove the Stock Ignition System

Now, let's get rid of that old stuff. Start by locating the CDI unit, ignition coil, and stator. Disconnect all the wires connected to these components. Make sure to label them with tape and a marker, or take photos, so you know where they go later. Remove the CDI unit and ignition coil from the bike. Next, you'll need to remove the stator cover. This usually involves draining the oil first. Once the cover is off, carefully remove the stator and trigger coil. Pay attention to how they're mounted so you can reinstall the new ones correctly.

Step 3: Install the New Stator and Trigger Coil (If Applicable)

Some IED Toomey kits come with a new stator and trigger coil. If yours does, install them in place of the old ones. Make sure they're properly aligned and securely fastened. Connect the wires from the new stator and trigger coil to the appropriate connectors.

Step 4: Install the New CDI Unit and Ignition Coil

Mount the new CDI unit and ignition coil in a convenient location on the bike. Make sure they're protected from the elements and won't interfere with any other components. Connect the wires from the CDI unit and ignition coil to the corresponding wires on the bike. Refer to the wiring diagram that came with your IED Toomey kit to ensure you're connecting everything correctly. This is where those labels or photos you took earlier will come in handy.

Step 5: Double-Check Your Connections

Before you button everything up, take a moment to double-check all your connections. Make sure all the wires are securely connected and that there are no loose ends. Pay special attention to the ground wires, as a poor ground connection can cause all sorts of problems. Use a multimeter to check for continuity if you're unsure about any of the connections.

Step 6: Reassemble and Test

Now it's time to put everything back together. Reinstall the stator cover, making sure to use a new gasket to prevent leaks. Refill the oil if you drained it earlier. Connect the battery and turn on the ignition. Check for any sparks or smoke. If everything looks good, try starting the bike. It might take a few tries to get it going, but once it starts, let it idle for a few minutes to warm up. Listen for any unusual noises or vibrations. If everything sounds and feels normal, take it for a short test ride. Pay attention to how the engine performs at different RPMs. You should notice improved throttle response and smoother acceleration.

Step 7: Fine-Tuning (If Applicable)

Some IED Toomey kits come with adjustable settings that allow you to fine-tune the ignition timing. If yours does, refer to the instructions that came with the kit to learn how to adjust the settings. You might need to experiment with different settings to find the ones that work best for your engine and riding style. A dynamometer can be a valuable tool for fine-tuning the ignition timing, but it's not essential.

Important Note: If you're not comfortable working on your bike's electrical system, it's always best to take it to a qualified mechanic. A mistake can damage the ignition system or even cause a fire.

Troubleshooting Common Issues

Even with careful installation, you might run into a few snags. Let's cover some common issues and how to troubleshoot them.

• No Spark: This is the most common problem after an ignition upgrade. First, double-check all your connections. Make sure the CDI unit, ignition coil, and stator are properly grounded. Check the spark plug to make sure it's clean and properly gapped. If you're still not getting a spark, use a multimeter to test the ignition coil and CDI unit. If either of these components is faulty, you'll need to replace it.
• Weak Spark: A weak spark can cause poor performance and difficulty starting. This is often caused by a weak battery or a poor connection. Make sure your battery is fully charged and that all the connections are clean and tight. You might also need to replace the spark plug.
• Misfires: Misfires can be caused by a variety of factors, including a faulty spark plug, a lean fuel mixture, or incorrect ignition timing. Start by checking the spark plug and adjusting the fuel mixture. If the misfires persist, you might need to adjust the ignition timing.
• Engine Runs Poorly at High RPM: This is often caused by incorrect ignition timing or a lean fuel mixture. Try adjusting the ignition timing or richening the fuel mixture. You might also need to install a larger main jet in the carburetor.
• Engine Detonation: Detonation, or knocking, is a serious problem that can damage your engine. It's usually caused by incorrect ignition timing or a lean fuel mixture. If you hear knocking, stop riding immediately and adjust the ignition timing or richen the fuel mixture. You might also need to use a higher octane fuel.

Remember, patience is key. Take your time, double-check your work, and don't be afraid to ask for help if you get stuck. With a little effort, you can get your RZ350 running like a champ with its new IED Toomey ignition system.

Final Thoughts

Upgrading your RZ350's ignition with an IED Toomey kit is a fantastic way to improve its performance, reliability, and overall riding experience. While the installation process might seem a bit involved, the benefits are well worth the effort. By following this guide and taking your time, you can confidently tackle this upgrade and enjoy the enhanced power and responsiveness of your classic two-stroke machine. So go ahead, give your RZ350 the spark it deserves!