Liquid-cooled Engine
Increasing
Combustion Efficiency
Clean Combustion Enables “Fun & Eco”
A key point of “BLUE CORE” engines is their low fuel consumption, but achieving that alone isn’t our aim. Yamaha’s quest is for the ultimate balance of the compression ratio, combustion chamber shape, air intake path, combustion flame propagation and more, because cleaner combustion is what makes it possible for us to give “BLUE CORE” engines an ideal combination of both strong power delivery and fuel efficiency.
Reducing Power Loss
Light & Simple Means Waste-less Performance
Engines run on the power of burning fuel. Our desire to get the fullest use out of every last bit of that power led to Yamaha to try to reduce power losses inside the engine as much as possible. To accomplish this, we turned our attention to the metals of each and every part to make them as lightweight as we could and reduce frictional losses to an absolute minimum.
Increasing
Cooling Efficiency
Light & Simple Means Waste-less Performance
For an engine to deliver stable performance across a wide range of operating conditions, optimal cooling performance is essential. If the engine runs too hot or too cool, the power it will deliver weakens. We design each “BLUE CORE” engine—whether it’s air-cooled or liquid-cooled—to keep its temps down but still up where we can maximize the power of each drop of fuel burned.
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