Impeller - Yamaha Superjet 2 Stroke

These are our custom Jetworks Pitched Impellers for all Yamaha 144mm Pumps typically found on the 1990-2020 SuperJet and WaveBlaster 1’s

These impellers are the same ones we use on all of our builds, and feature a 74mm "big hub" design with a near mirror-polished finish

Our pitch recommendation guide is meant to be used with a stock unbored exit nozzle and stock pump cone (ie not a stubby cone)

• “A Minus" for almost stock 701 or piped 701 wanting Max Bottom End
• “A” for most properly built 701’s for all-around riding (Pipes, Carbs, Head Ect)
• “A Plus" for most big bore freeride/freestyle engines 771cc-950cc with proper supporting mods
• “B” for most builds with emphasis on midrange/top end
• “B Plus” for most SuperStock Type Racing Build or Triple Cylinder Swaps