I can't say enough good stuff about the F series Yamaha 4 strokes. I owned an
F-150 for three years. Never sputtered. Just change oil after 100 hours, check lower unit and it has been running strong since I sold it three years ago. I moved up to an F-200 and it is a doll. A heavy weight but I have it on a Skeeter Walleye type boat (WX1880) and it carries it well. With a Bob's plate it does 53 MPH GPS all day long. Great engines. If you're looking for low maintainence, economy and a quiet ride, try one. If you're looking for the fastest go to a 2 stroke.
g3yama150