Not sure I've heard much in the way of negatives from guys who have actually owned and run an 18 with a 140? I put a DF140 on my 18' (was really shopping for a Yamaha 115, but got a crazy deal on the Zuke) way back in '02, and was very happy with it. True, it's a lot of weight hanging off the back, and washboards are advisable to keep water out when backing. I can't recall the specs on the prop we settled on (sold the boat in '07), but we tried a bunch and ended up propping for all around performance. Great hole shot, 42 mph in flat water, phenomenal "guts" at any speed, even with full tanks, four (or more) adults, dog, cooler, etc., and absolutely sipped gas. I'll admit that it was more power than I needed or used 90% of the time...I'm sure a 90 would work fine, but it was really nice having the extra juice available when going in or out of a rough inlet with a heavy load. I remember thinking that it was a little like driving a turbo Porsche - everybody best be holding on when you put your foot in it! I do miss that darn boat...
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1977 23' Sceptre
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