What is "full shift" – I have F-N-R on my model 7516. I was able to get it on plane with just me in the boat when I slid all the way forward I could and still hold the tiller. I guess I need to move the fuel tank forward as well. I did notice that when the boat was on plane water was being pushed up the mid section and was pouring into the back of the boat like a water fountain. I assume this is because the motor is 17.5" and the center sponson is only 14" — this is a 9′ fiberglass power catamaran – 2014 model Livingston LV9 rated for 550lbs, 3 people, 8hp and weighs 160lbs empty. I am thinking I could make a sheet metal shield to stop the water from spewing over the transom when on plane but am really hoping the transom elevator will cure the problem.

The boat is 9 foot, 160 lbs empty, fiberglass, catamaran, 2014 Livingston LV9 — I had been researching this boat for quite a while and I just bought it 2 weeks ago – it is the perfect boat for my needs – I plan on keeping this for a looooong time – 2 people can lift it – it fits in the back of my 6.5′ pickup truck bed with the gate up and allows the motor, gear, tank, etc… to be transported under it and it is VERY well built. The motor was something I saw and just HAD to have it since it was soooo cool. I fell in love with the beauty of antique outboards several years ago at a event called "Field Day of the Past" in Richmond, VA. and at the Fresh Water Fishing Hall of Fame museum building full of several hundred (maybe over a thousand) antique motors sealed the deal for me to want one of my own.