Yamaha 115HP - F115XB Outboard Motor

Weight on the Yamaha F115XB comes in at 386 lbs, carried on a 25-inch shaft; starting is electric, with throttle and shift run by remote mechanical controls. Confirm any separate dealer coverage with us before ordering, since the listing mentions more than one warranty term. The engine underneath is Yamaha's familiar 1.8-liter four-stroke inline-four, shared across the F115 lineup and built from the ground up to run lighter than competing engines at the same horsepower.

A lighter engine at this horsepower

Yamaha builds this inline-four to weigh less than many other engines rated at 115 hp, and a lighter motor at a given horsepower generally helps a boat get on plane sooner and run more efficiently at cruising speed. Yamaha states fuel use of roughly a gallon an hour for this engine under normal operation, with EFI handling the metering.

Included equipment

Standard equipment is power trim and tilt plus a steering link arm and owner's manual; a propeller does not come with the engine, so budget for one separately based on the boat it goes on.

Matching shaft to transom

At 25 inches, double-check this shaft length against your own transom measurement rather than guessing, since it cannot be shortened or extended after purchase.

Specs at a glance: 1832cc of displacement and a 5300-6300 rpm full-throttle range, with a 3-year manufacturer warranty.