2017 Yamaha F4 LMHA Outboard Motor

For those who want power, performance and portability

The sun just broke the horizon, but your day began hours ago—the second you started your trusty Yamaha Portable. Maybe you’re skimming the marsh in a jon boat during duck season, pushing a sailboat ‘til the wind kicks up or hopping to the cuddy on a tender. Wherever the day takes you, these nimble, lightweight, efficient portables are up for the ride. Available in a range of horsepower from the F20, to the F2.5, including the redesigned F8 with 7.5 percent more displacement, these 1- or 2-cylinder dynamos provide big performance in streamlined designs.

Key Features

• Streamlined Intake Manifold
• Labyrinth Exhaust
• Long Span Mounting System
• Four Stroke Engine Design
• Oil Separator
• Streamlined Gearcase
• Overhead Valve (OHV) Design
• 2-Valves Per Cylinder
• Precise Carburetor Setting
• Built-in Auxiliary Priming Pump
• Dynamically Balanced Crankshaft
• 5-Step Anti-Corrosion Paint Process
• Stainless Steel Driveshaft, Prop Shaft, Shift Shaft and Steering Tube
• CDI Microcomputer
• Sacrificial Anodes
• Pressurized Lubrication
• Built-in Fuel Filter

Specifications

• Year 2017
• Manufacturer Yamaha Marine
• Model Name F4
• Trim Name LMHA
• Generic Type (Primary) Four Stroke
• Engine
• Engine Type One-Cylinder
• Engine Power 4 hp at 4500 rpm
• Alternator (Output): 6 Amp (Optional: Requires Charging Kit
• Displacement 8.5 ci (139 cc)
• Gear Ratio (Primary) (27:13) 2.08:1
• Lubrication Wet sump
• Fuel Type Induction: OHV
• Ignition System: CDI
• Oil Type (Recommended): Yamalube® 4M (See owner’s manual)
• Fuel Type (Recommended): Regular Unleaded (Minimum Pump Octane 87)
• Fuel Type (Recommended Filtration): Yamaha Mini 10-Micron Fuel/Water Separating Filter (external)
• Steering Angle (Maximun): 90° from center, either direction
• Capacities
• Oil capacity.6L (.63 qt)
• Spark Plug
• Spark Plug CR6HSB-000-000
• Range
• Note Full Throttle RPM Range: 4000-5000
• Dimensions
• Length Shaft: L=20″
• Bore 2.44 in. (62 mm)
• Stroke 1.81 in. (46 mm)
• Weights
• Dry Weight F4LMHA = 28kg (62 lbs)
• Features
• Starter Manual
• Exhaust Above Propeller
• Note Ethanol Blend Limit: 10% Maximum
• Features C.A.R.B. Rating: 3 Star
• Cooling Water/Thermostatic Control
• Weight Spec: 6
• Note Gear Shift: Forward, Neutral, Reverse
• Features Degree of Tilt: 69°, Degree of Trim: 5 positions
• Compression Ratio 8.9:1
• Intake Design Carburetor
• Note Mounting Centers: 28.6″
• Warranty
• Warranty 3-year Pleasure, 3-year Government, 1-year Commercial