Yamaha YZF-R3 Stock Engine Compared to a Tuned with Spark Exhaust 2019

Yamaha YZF R-3 This is an engine that was tuned by Spears Racing 

2019 Stock Yamaha YZF R-3, This is a comparison between the “3rd Run” and after the Spark Yamaha R3 Titanium Evo “konix” full exhaust and Dyno Tuned by Spears Racing  using a Dynojet PCV this is the same fuel, added timing to the map.When you purchase the PCV for this bike Spears Racing will include a custom built map.

Graph Lines: is a Stock exhaust,stock engine 87 octane fuel, Spears Racing 415 chain conversion kit 18/56 sprockets,

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