I have noticed with the Spit and Hurri that the tach will not move off 1600rpm until I get to 35-40% throttle input then it jumps and the engine sounds actually change to match the input. The throttle lever in cockpit moves in relation to my throttle input but no tach movement or sound change till 35+ %. My prop pithch is 100%...full fine. Is there something I'm missing here??
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