2023 Yamaha F2.5 SMHB 2.5 hp
2023 Yamaha F2.5 SMHB 2.5 hp
is the smallest motor on our roster, but it still packs a punch. Completely redesigned, it’s even more portable, easier to store and clean burning.
POWER & PERFORMANCE
- Lightweight, Portable Power: They may weigh as little as 37 pounds, but these Overhead-Valve portable outboards are packed with features that create smooth, quiet power. This includes a CDI or TCI ignition system, an optimally balanced crankshaft, a long span mounting system and a labyrinth exhaust.
- Surprising Performance: The portable F6, F4 and F2.5 all offer impressive features like electronic ignition, thermostatic cooling and 180-degree steering.
- Record Setting Fuel Efficiency: Small motors use less fuel, but according to the Guinness Book of World Records, the Yamaha F4 actually set a world record for fuel efficiency, traveling 67.27 continuous statute miles on one gallon of gas.
RELIABILITY & DURABILITY
- Easy Operation: The F6, F4 and F2.5 feature built-in, see through fuel tanks. The F6 and F4 also feature switchable access to an optional, 3.1-gallon external fuel tank for extended range.
- 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.
- Corrosion Protection: Combined with our proprietary alloy (YDC-30), our exclusive Phaze Five™ electro-deposited, anti-corrosive paint system provides a tough, five-layer barrier against corrosion. This protection is standard on all Yamaha Portable outboards.
- Maximum Efficiency: The F6, F4 and F2.5 have a carburetor with a factory-selected setting for maximum efficiency, which helps them achieve a C.A.R.B. Three-Star Rating for Ultra-Low Emissions. Additionally, automatic decompression, built-in auxiliary priming and start-in-gear prevention help make for easier starts.
CONVENIENCE & CONTROL
- Easy Storage: Yamaha’s F2.5, F4, and F6 feature our Easy Storage Oil Retention System. This pressurized oiling system prevents leaks, enabling on-side storage.
- Comfortable Control: Incredibly nimble, the F6 and F4 feature 180-degree steering and the F2.5 features 360-degree steering with a dynamically balanced and dampened twist-grip throttle for comfort and convenient maneuverabilty.
- Portability and Storage: Built-in front and rear handles make these lightweights easy to carry. Resting pads and an easy oil retention system allow for convenient on-side storage without cowling scuffs or oil leakage.
MODEL SPECIFIC FEATURES
- Available for tiller-handle control with forward-neutral shifting, 360-degree steering and an ergonomic twist-grip throttle
- Only 37 pounds (15” shaft model)
- Available in 15” and 20” shaft lengths
SPECIFICATIONS
- Engine Type: 1 cyl
- Displacement: 72cc
- Bore x Stroke: 54 x 31.5 mm (2.13 x 1.24 in)
- Prop Shaft Horsepower: 2.5hp at 5500 rpm
- Full Throttle RPM Range: 5250 ~ 5750
- Compression Ratio: 8.8:1
- Fuel Induction System: Carb
- Weight †: 17 kg (37 lbs)
- Recommended Fuel: Octane 87
- Recommended Engine Oil: Yamalube® 4M (See owner’s manual)
- C.A.R.B. Rating: 2-Star
- Exhaust: Above Propeller
- Intake: 2
- Ignition: TCI
- Spark Plug: CR6HSB
- Starting System: Manual
- Lubrication: Splash
- Engine Oil Capacity: 0.35L
- Recommended Cooling: Thermostatic Control
- Ethanol Blend Limit: 10% Maximum
- Gear Ratio: 2.01:1
- Gear Shift: Forward, Neutral, Reverse
- Shaft Length: 15″
- Degree of Tilt: 79°
- Degree of Trim: -4° through +16°
- Dry Weight: 17 kg (37 lbs)
- Steering Angle (maximum): 360° from center, either direction
- Warranty: Limited 3-Year Pleasure, 3-Year Government, 1-Year Commercial
NOTES:
† Weight refers to shortest shaft length, and is measured without motor oil, gearcase oil and propeller (except models 25 hp and under, which include a standard propeller). All Jet model weights include the jet pump assembly (weight estimated).
| SPECIFICATIONS | ENGINE Engine Type 1 Cylinder Bore x Stroke 2.13 x 1.24 in. (54 x 31.5 mm) Displacement 72 cc Starting Manual DIMENSIONS Shaft Length 15 in. Weight 37 lb. (17 kg) GENERAL Propshaft Horsepower 2.5 HP at 5500 RPM Full Throttle Operating Range 5250 ~ 5750 RPM Gear Ratio / Shift 2.01:1 / Forward, Neutral, Reverse Fuel Induction Carb Warranty Limited 3-Year Pleasure, 3-Year Government, 1-Year Commercial |
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