Posts: 3480
Location: Elk River, Minnesota | So Steve, when they set these rigs up do they put a 20" shaft motor on them? From the pictures it looks like there is a designed set-back in the hull, which would allow for a higher motor height, but if they put a 20" leg motor on there, moving the motor up would be detrimental and would make sense not working..
Mike...is your motor a 20" shaft?
If the motor cannot move up without undo ventilation, then I would agree with Steve on this, and I am thinking with the numbers you have, a 19 would still work. There is a point of diminishing returns that will be met and if the 21 pitch is over that, a 19 could very well be turned in the correct range. My yamaha 90 cannot turn a 19 without losing close to 600 rpms, but put a 17 on it, and it is good to go...
Steve |
