Yamaha performs a standard pre-delivery inspection prior to shipment, ensuring consistent quality across all of their outboard engine models. Once the inspection is completed, engine fluids are drained and shipped along with the F20SMHB Yamaha outboard. engines for the owner to refill before operation.

Engine Info & Specs

Not your typical portable outboard engine, the Yamaha F20SMHB features an manual start and a tiller handle. This all-new 432-cc 20-hp 4-stroke outboard engine is built on the same award-winning platform as Yamaha's renowned F25 outboard engine, and features the same SOHC in-line design and signature streamlined intake manifold.

While this design boasts exceptional power, it also makes the F20 one of the most fuel efficient outboard engine's in its class. Weighing less than 150 pounds, the F20 is ideal for lightweight marine vessels like aluminum boats, tenders, and inflatables.

Clean Burning Power - Yamaha's entire four-stroke line up meets emissions requirements in all 50 states.

Reliability & Durability - Wet Sump - A pressurized oil delivery system that incorporates a compact and durable oil pump to keep all of the moving parts of their Overhead Valve systems lubricated and running smoothly for maximum reliability.

Convenience & Control:

• Max Maneuverability - 45-degree steering angle enables exceptional maneuverability in every direction.
• Easy Engine Flushing - A Freshwater Flush Device allows you to flush the engine without running it, for added convenience and extended engine life.
• Portability & Storage - Incredible light weights, built-in resting pads and carry handles, an easy oil retention system and an optional folding tiller handle, allow for easy carrying and on-side storage without oil leakage or cowling scuffs.

Engine Type	2 cyl
Displacement	432cc
Bore x Stroke	65 x 65.1mm (2.554 x 2.558 in)
Prop Shaft Horsepower	20 hp @ 5500 rpm
Full Throttle RPM Range	5000 ~ 6000 rpm
Alternator Output at W.O.T.	16 Amp
Compression Ratio	9.3:1
Fuel Induction System	EFI
Weight*	126 lbs
Recommended Fuel	Octane 87
Recommended Engine Oil	YamaLubes® 4M (See owner's manual)
Recommended Fuel Filtration	Yamaha 10-Micron Fuel/Water Separating Filter (external)