Our 1.8-liter I-4 F115 is the lightest DOHC 115-hp In-Line Four on the water by nearly 25 pounds, leading its class in power-to-weight. It not only bests the competition, but it also beats Yamaha’s previous F115 design, with a zero-to-200-foot acceleration time that’s 0.7 seconds faster.

Engine Type
Inline 4
Displacement 1832cc
Bore x Stroke 81 x 88.9mm |3.19 x 3.5in
Prop Shaft Horsepower 115hp at 5500 rpm
Full Throttle RPM Range 5300 ~ 6300
Alternator Output at W.O.T. 35 Amp
Compression Ratio 10.0:1
Fuel Induction System EFI
Weight* 171 kg (377 lbs) – 175 kg (386 lbs)
Recommended Fuel Octane 87
Recommended Engine Oil Yamalube® 4M (See owner’s manual)
Recommended Fuel Filtration Yamaha 10-Micron Fuel/Water Separating Filter (external)