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Suzuki DF9.9 suggested wide open throttle RPM range: 4700-5700
Add 1" of propeller pitch to increase WOT RPM by 150-200RPM

Remove 1" of propeller pitch to decrease WOT RPM by 150-200RPM
When changing from a 3 to 4 blade propeller please note a 4 blade propeller rotates 50-100RPM slower than a 3 blade

DF9.9BT 4-Stroke (10 Spline) 2015+

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