2018 Yamaha F20 Portable Tiller ES F20SEHA Outboard Motor
$8,550.00
The 2018 Yamaha F20SEHA is a portable outboard engineered for boaters who want solid power in a lightweight, easy-to-handle package. This 2-cylinder, 362cc SOHC four-stroke outboard produces 20 HP at 5,500 RPM, configured with tiller steering, electric start, EFI fuel induction, and a 15-inch short shaft — making it an excellent match for aluminum fishing boats, tenders, and inflatables across California and the United States .
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Description
The F20SEHA is built around Yamaha’s proven 362cc powerhead with a single-overhead-camshaft, two-valve-per-cylinder design that provides better breathing and more power . The streamlined intake manifold and intake silencer result in more direct airflow, for minimum noise and maximum power .
The CDI Microcomputer Ignition continuously monitors throttle position, engine speed, and atmospheric conditions to precisely adjust ignition timing under all conditions for optimum performance, economy, and power . The acceleration pump delivers the fuel the engine needs during rapid throttle advance, ensuring responsive acceleration when you need it most .
Yamaha’s Phaze Five™ electro-deposited anti-corrosive paint system, combined with their proprietary YDC-30 alloy, provides a tough, five-layer barrier against corrosion — standard on all Yamaha portable four-stroke outboards . The Freshwater Flush Device allows you to flush the engine without running it, for added convenience and extended engine life .
The Engine Warning System protects the outboard with overheat protection, low-oil-pressure warning (automatically reducing maximum RPM to 2000), over-rev protection, start-in-gear protection, and shift-in prevention at open throttle .
| Specification | Value |
|---|---|
| Model | Yamaha F20SEHA |
| Year | 2018 |
| Engine Type | SOHC In-Line 2-Cylinder, 4-Stroke |
| Displacement | 362 cc (22.1 in³) |
| Bore × Stroke | 63 × 58.1 mm (2.48 × 2.29 in) |
| Compression Ratio | 9.3:1 |
| Maximum Output | 20 HP (14.7 kW) @ 5,500 RPM |
| Operating Range | 5,000–6,000 RPM |
| Fuel System | EFI (Electronic Fuel Injection) |
| Starting System | Electric |
| Ignition System | CDI Microcomputer |
| Gear Ratio | 2.08:1 |
| Transom Height | 15 inches (Short) |
| Dry Weight | 117 lbs (53 kg) |
| Oil Capacity | 1.8 L with filter / 1.6 L without |
| Alternator Output | 10 amp |
| Trim System | -4° through +16° |
| Degree of Tilt | 67° |
| Steering | Tiller handle |
| Propeller | Aluminum |
| CARB Rating | 3-Star Ultra-Low Emission |
| Warranty | 3-Year Limited Pleasure |
The 20 HP portable outboard segment is competitive, with strong offerings from Mercury 20 FourStroke, Suzuki DF20A, and Tohatsu MFS 20E. Here’s how the F20SEHA compares on the specifications that matter:
| Feature | Yamaha F20SEHA | Mercury 20 | Suzuki DF20A | Tohatsu 20 |
|---|---|---|---|---|
| Displacement | 362 cc | 333 cc | 327 cc | 333 cc |
| Engine Type | SOHC 2-Cyl | SOHC | SOHC | SOHC |
| Weight (S shaft) | 117 lbs | 99 lbs | 97 lbs | 96 lbs |
| Fuel System | EFI | EFI | Battery-Less EFI | EFI |
| Electric Start | Yes | Yes | Yes | Yes |
| Alternator | 10A | 6A | 6A | 6A |
| Warranty | 3-Year | 3-Year | 5-Year | 5-Year |
The F20SEHA’s 362cc displacement is among the largest in its class, delivering strong low-end torque for loaded boats . Its 10-amp alternator is the most powerful in this group, providing ample charging capacity for electronics . The Phaze Five™ corrosion protection and Freshwater Flush Device are genuine long-term ownership advantages .
The F20SEHA is well-suited to a wide range of American boating applications:
Aluminum fishing boats — the 15″ shaft and electric start make it ideal for serious anglers
Tenders and inflatables — lightweight enough for easy transport and storage
Utility jon boats — reliable power for work and play
Small skiffs — excellent power-to-weight ratio for planing
The engine features a 45-degree steering angle in each direction for great maneuvering potential, built-in resting pads and carry handles that allow for easy carrying and on-side storage without oil leakage or cowling scuffs, and shallow water drive capability for navigating shallows .
All motors ship from our San Francisco, CA warehouse with fast nationwide shipping. California residents pay applicable sales tax; out-of-state buyers receive straightforward delivery to their doorstep.
2018 Yamaha F20SEHA outboard motor (15″ shaft)
Tiller handle
Fuel tank and quick-connect fuel line
Aluminum propeller
Tool kit
Owner’s manual
Yamaha 3-Year Manufacturer Warranty
Complete your installation with these compatible components and services:
Yamaha outboard motor propellers — pitch options for optimal performance
Yamalube 4M engine oil — the recommended oil for your F20
Yamaha 10-micron fuel/water separating filter — protects your EFI system
Zinc anode kit for Yamaha F20SEHA — protect against saltwater corrosion
Yamaha outboard motor flusher — essential for post-saltwater flushing
Boatworld foldable outboard engine trolley — safe storage and transport
Outboard motor service kit — impeller, spark plugs (DPR6EB-9), and fuel filters
Boatworld heavy duty outboard lock — security for your investment
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SKU: YAM-F20SEHA-2018-15
MPN: F20SEHA
Brand: Yamaha Marine
Category: Outboard Motors > Portable (15–20 HP)
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