2017 Yamaha F15 SEHA Outboard Motor

Short-shaft at 15 inches, this 2017 F15 SEHA runs Yamaha's 362cc, two-cylinder, 15 hp SOHC engine with manual or electric starting, a single carburetor and CDI ignition, at a listed dry weight of 117 lbs.

Short shaft versus the long-shaft trims

Yamaha's 2017 F15 line also comes in a 20-inch long-shaft build under different model codes, so confirming your transom height before ordering matters more than anything else about choosing between them. Bolt spacing for mounting comes in at 28.6 inches, the helm can swing steering a full 45 degrees to each side, compression is specified at 9.3:1, and drive runs through a 2.08:1 gear reduction across forward, neutral and reverse.

Tilt ranges between 67 and 71 degrees over four trim positions.

Short-shaft portables like this one are a common second motor for a bay boat or center console, mounted as backup power rather than the main engine, which is part of why Yamaha offers the F15 across both shaft lengths.

Questions buyers ask

What's the oil capacity? The system takes 1.8 liters when running with the filter fitted, or 1.6 liters if it is left off.

What fuel does it need? Regular unleaded, 87 octane minimum.

What's the warranty? 3-year limited pleasure boat coverage and 1-year limited commercial.

Can it start manually? Yes, both manual and electric start are available on this unit.