Yamaha 4 HP Tiller Outboard Motor – F4 – 2023

Yamaha’s 139 cc 4 HP portable outboard mirrors the OHV F6, with a couple less horses. It features the same ergonomic, easy-grip starter handle with a built-in decompression device for effortless starts. The F4 also features a built-in fuel tank with the option of switchable access to an additional external tank for amazing extended range. There’s no stopping this little brute.

Features:

• Tiller-handle control with forward-neutral-reverse shifting and an ergonomic twist-grip throttle
• Only 59 pounds (15″ shaft model, dry weight)
• Solid 6A alternator

Specifications:

• Engine Type: 1 cylinder
• Displacement: 139 cc
• Bore x Stroke: 62 x 46 mm (2.44 x 1.81″)
• Prop Shaft Horsepower: 4 HP at 4500 rpm
• Full Throttle RPM Range: 4000 ~ 5000
• Alternator Output at W.O.T.: 6A
• Compression Ratio: 8.9:1
• Fuel Induction System: Carburetor
• Weight: 27 kg (59 lbs)
• Recommended Fuel: Octane 87
• C.A.R.B. Rating: 3-Star
• Exhaust: Above Propeller
• Intake: 2
• Ignition: CDI
• Spark Plug: CR6HSB
• Alternator Output: 6A
• Starting System: Manual
• Lubrication: Wet Sump
• Engine Oil Capacity: 0.6 L
• Recommended Cooling: Thermostatic Control
• Ethanol Blend Limit: 10% Maximum
• Gear Ratio: 2.08:1
• Gear Shift: Forward, Neutral, Reverse
• Degree of Tilt: 69°
• Degree of Trim: -4° through +16°
• Dry Weight: 27 kg (59 lbs)
• Steering Angle (maximum): 90 deg. from center, either direction
• Fuel line included
• Standard 3-Blade Aluminum Propeller: 7 1/2″ x 7″
• Factory Warranty: 3 years. Warranty begins on date of purchase.

Note: External fuel tank not included.

Owner’s Manual (4.18 MB)