Lightweight, compact and economical, Yamaha’s single-cylinder portable F4 has been designed to be ultra-easy to use and transport.
Featuring a specially developed four stroke, Overhead Valve (OHV) design, this engine delivers excellent fuel efficiency and smooth running.
Attention to detail makes this Yamaha small engine great by delivering a user experience that stands head and shoulders above anything else.

• Engine Type4-Stroke, OHV, 1-cylinder
• Bore x Stroke (mm)62 x 46
• Fuel Tank Capacity (l)1.1
• Displacement (cc)139.0
• Recommended Maximum RPM4000-5000
• Fuel ManagementCarb
• IgnitionCDI
• Lubrication SystemWet sump
• Alternator Output12V - 6A with Rectifier Regulator (Optional)
• Gear Ratio2.08:1
• Starter SystemManual Choke
• Operation MethodTiller Handle
• Trim and Tilt MethodManual Tilt
• Digital GaugesN/A
• Command Link GaugesN/A
• Transom Height (mm [inch])S: 435 [17.1] | L: 562 [22.1]
• Dry Weight (kg)S: 27 | L: 28
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