PRODUCT: JD Jetting became well-known in the world of two-stroke tuning by conducting extensive in-house testing and offering jetting solutions for popular models. In addition to that, they now provide tuning methods for the latest fuel-injected motorcycles, including recent KTM and Husqvarna two-strokes with throttle-body injection. The Power Surge is an EFI tuner that is manufactured by Dobeck Performance for JD. This piggyback tuner modifies the fuel delivery in fuel-injected motors by adjusting the signal between the CPU and the injectors. It allows users to make the fuel mixture richer or leaner in six different zones. JD conducts its own testing and provides proprietary programming for this product.
OUR TAKE: The Husqvarna TX300 two-stroke is a great bike, but it can be a bit challenging to handle. It offers two maps through a handlebar switch – one aggressive and one mild. The aggressive map is suitable for motocross but can be difficult to manage in rocky or muddy off-road conditions. The mild map, on the other hand, provides a softer power delivery that is better for trail riding. However, many riders want a setting that falls somewhere in between. With the JD Power Surge, you can achieve that. Installing it is simple, and it can be securely attached to the steering head. The unit comes with connectors that are compatible with the original equipment wiring. When we tested the JD Power Surge, we noticed a significant difference in power in the lower midrange of both maps. In the mild map, the power increase was enough to enhance off-road riding and racing. However, in the aggressive map, the power boost was a bit excessive for off-road use.
The tunability of the Power Surge is extremely valuable in finding the right balance. By making slight adjustments to the fuel mixture, we were able to achieve a setting that made the aggressive map more manageable without sacrificing power. It’s important to note that this product only affects fuel mixture and does not impact spark advance or power-valve timing. However, future advancements may provide options for adjusting power-valve timing.
BOTTOM LINE: We highly recommend the JD Power Surge for fine-tuning throttle-body-injected two-strokes. Without it, you’re limited to the factory settings that may not suit your riding preferences.
PRICE: $251.95
CONTACT: www.jdjetting.com