Hello, I have a 1993 Tracker pro 17 bass boat with a Evinrude 9.9 with the 15 carb. this unit runs fine. Although I'm thinking of upgrading my troller and sonar which is pricey. I was researching the available 20hp outboards and came across this one. Is it possible to use this motor
http://www.ebay.com/itm/Yamaha-F20SMHA-Outboard-Motor-20HP/162703192679?_trkparms=aid%3D111001%26algo%3DREC.SEED%26ao%3D1%26asc%3D20160727114228%26meid%3Df5ba5d346fe84f859cd50538f12738c7%26pid%3D100290%26rk%3D3%26rkt%3D4%26sd%3D253192512613&_trksid=p2060778.c100290.m3507