I just purchased a 1993 Armada Marda Explorer 2100 with a 1993 Force 120hp.<br />The boat is a deck boat with a tri-hull weighting in at ~2900 lbs.<br />With Myself, wife and 2 young kids, WOT is 4700 and top end is ~19 MPH.<br />The Mfg has a top end of 5200-5600 rpm for WOT. That is a 500 to 900 RPM delta. And if I have been follwing the threads correctly I should 2-4 pithches lower.<br />Problem is the lowest pitch I can find for this is 13P. So now I am wondering if th motor is the cause. It starts and runs fine - Compression, just by turning it through the compression stroke by hand seems good.<br />The engine does not feel "overloaded" but it does consume ~14 gph at wot.<br />Also - I cannot find the Manufacture of this boat - it is out of Ravenna, KY.<br />Appreciate any comments.