Why did J Boats drop the J100? in J/Boat Anarchy Posted May 4 3 hours ago, glass said: That is exactly what we have been doing for the last three days; stepped the mast, launched the boat, and delivered to the harbor. 2GM Yanmar diesel runs smooth and it is quiet. At 3000 rpm boat speed in flat water was 7kts. I am impressed with build quality and am looking forward to sailing the boat. It is good to be alive ! Did you get one with the factory Sprit you were seeking and did it need the Speed Shop treatment?