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Four Stroke Portable

Model HomeSpecificationsStandards & OptionsPerformance Bulletins
Our Three Year Limited Warranty protects every Four Stroke Portable for pleasure use.
Yamaha's Shallow Water Drive (standard on all tiller handle models except F2.5) helps keep the prop and lower unit out of harm's way in shallow water.
The Microcomputer Ignition adjusts timing to maintain optimum engine performance, economy and power under all conditions (F6 and up).
The Fresh-water Flush Device enables you to flush the engine without starting the engine, for maximum convenience, durability, and long engine life. (Not available on F2.5 and F4).
Yamaha's Exclusive YDC-30 Alloy is the most corrosion-resistant base material in the industry.  Used with Yamaha's Exclusive ACP-221 Paint Process, it provides a extra-tough barrier against corrosion.  They’re both key components of our renowned Ultimate Corrosion Protection System that’s standard on all Yamaha Portable Four Stroke engines.
All Portable Yamaha four strokes meet all Federal EPA emission requirements. Our entire four stroke line-up (except the F4 and F2.5) has earned a California C.A.R.B. three-star rating for ultra-low emissions. Our F4 and F2.5 models have earned a two-star rating for very low emissions.
Yamaha is dedicated to helping create a cleaner environment through advances in outboard technology.