Re: 1994 cajun 1850 fishmaster prop
Before investigating a prop swap, make sure the engine is performing properly. Prop changes cannot compensate for a poor performing engine. Then you need to determine what prop diameter and pitch you currently have and what the wide open throttle RPM is with normal load using the current prop. Then you need to check engine height (X-dimension) to determine if its optimum with the current prop. If the engine then turns at its maximum recommended wide open throttle RPM, you already have the optimum prop. If its under that RPM you need to decrease pitch. If its overreving, you need to increase pitch. Engine RPM changes 100 - 200 RPM for each 1-inch of pitch change.
