A reflash can lower or remove this top speed limiter, allowing for higher top speeds.Īs you can see, the stock ECU leaves a lot on the table performance-wise. Speed limiter - The stock ECU may include a 180 mph limiter.A reflash removes this restriction, unleashing the full potential of the engine. Throttle restriction - Yamaha's stock programming throttles power below 10,000 RPMs.A reflash advances the timing, resulting in stronger pulls at high RPMs and more top-end power. Weak top-end power - Stock ignition timing is often very conservative at high RPMs.A reflash raises it closer to the engine's safe limit, allowing for more power in the higher rev range. Low rev limiters - The stock rev limit is set conservatively low to improve reliability.A reflash richens up the mixture, leading to stronger acceleration. Lean fueling - Yamaha's stock programming runs very lean fuel maps to meet emissions, which can hamper power.To better understand the benefits of a reflash, let's examine the restrictive nature of Yamaha's stock ECU programming: As you can see, an ECU reflash is an easy way to unlock massive performance gains from your R6.
No hardware modifications are needed to benefit from most reflash tunes. Depending on the tuner, the mapping may be adjusted to match your specific modifications like an aftermarket slip-on exhaust or race-spec air filter.Īn ECU reflash simply overwrites the stock mapping already on your ECU.
This includes adjustments like more advanced ignition timing, an increased rev limiter, and leaner fuel maps for better performance. The tuner can adjust power-limiting parameters in the stock ECU programming, allowing for adjustments to improve performance. Now that we've covered some top ECU reflash options, let's dive into the specifics and explain what an ECU flash is.Īn ECU reflash involves connecting the bike's ECU to a tuner's computer and using special software to recalibrate the ECU’s factory settings.
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