Re: Max RPM of a 1984 Force 125
my buddy has the same boat and motor that you do, heavy boat! he has a 15 pitch and a 19 pitch and the 15 still doesn't get him to 5500 rpm but pretty close 5k plus and the boat can be fully loaded with coolers and 9 people and still get up on plane good but tops out at about 30 mph. The 19 pitch really dogs the motor out and it barely hits 4500 rpm with it but with just 2 people in the boat she'll do about 40 so we call it the "speed prop" but put too many people in the boat and she won't plane off. I bet the 17 pitch would be the best all around prop for his boat.