139cc Single 2.5 HP
139cc Single 2.5 HP
Outboard
Overview
Our 72-cc 2.5-hp portable outboard is the smallest motor on our roster, yet, it has some of the biggest news. Completely redesigned, it’s even more portable, easier to store and cleaner burning. It recently achieved a Two-Star rating from the California Air Resources Board (C.A.R.B) for Ultra-Low Emissions and now meets emissions requirements in all 50 states.
- 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
| 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 |
| Alternator Output at W.O.T. | N/A |
| Compression Ratio | 8.8:1 |
| Fuel Induction System | Carb |
| Weight † | 17 kg (37 lbs) - 20 kg (40lbs) |
| Recommended Fuel | Octane 87 |
| Recommended Engine Oil | Yamalube® 4M (See owner's manual) |
| Recommended Fuel Filtration | N/A |
| C.A.R.B. Rating | 2-Star |
| Exhaust | Above Propeller |
| Intake | 2 |
| Ignition | TCI |
| Spark Plug | CR6HSB |
| Alternator Output | N/A |
| 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 |
| Shaft Length | 15" - 20" |
| Degree of Tilt | 79° |
| Degree of Trim | -4° through +16° |
| Dry Weight | 15" shaft / 17 kg (37 lbs), 20" shaft / 20 kg (40 lbs) |
| Mounting Centers | N/A |
| Steering Angle (maximum) | 360° from center, either direction |
| Warranty | Limited 3-Year Pleasure, 3-Year Government, 1-Year Commercial |
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