I have recently become an accidental boat owner and need a little help/advice. I've inherited a 1986 Formula 357 Kaama. My previous boating experience was with merc outdrives or true inboard V drives with big props. This boat has the Kaama Surface Drives with those funky little weird shaped props.
OK, here's the question (finally!) When I open the throttles both engines rev smoothly at about 5200 rpm but the boat seems to take a long time to get on plane. I'm keeping the drives down until she reaches plane speed. Then it feels like the props finally grab and she planes and levels off. The rpms drop to about 3500 when this happens. They pick up when I raise the drives to the "cruise" or "max" positions.
Is it normal to take so long to plane? Is it normal for the props to "grab" when planing occurs? Am I supposed to raise the outdrives before starting my run? Is there a book I can use to learn about the Kaama modifications and operating techniques?
Any and all ideas warmly welcomed.