Posts: 32935
Location: Rhinelander, Wisconsin | I don't think you have a 4 blade Tempest, that's a three blade prop. Trophy or Trophy Plus, or an old Off Shore, perhaps, we'll see when you get back. If so, you have a prop designed for flats and bass boats with high engine installations, which is not the case with a 690 series Fisherman.
I'd say Jim has too big a wheel, which VMS already identified. I ran a 21 on a 200 powering an 1890 and JUST was taching correctly but had porpoising issues and a bit of a left lean at low speed/hi torque. Switched it out for a Rev 4, and the boat is a totally different animal. |
