Yamaha F4LMHA 4HP 4-Stroke Outboard – 20in Shaft

Description

Daysailers battling stiff morning tides find their perfect auxiliary companion in the Yamaha F4LMHA long-shaft outboard. The 139cc carbureted block delivers smooth, vibration-free low-end torque, pushing lightweight displacement hulls across wide harbor basins effortlessly. A quick tape measure check validates this 4hp manual start long shaft outboard fits tall sailboat brackets perfectly without causing dangerous water pump starvation.

Maximize your available deck payload capacity completely by stripping away heavy 12-volt starting batteries and electric starter motors. You rely entirely on the proven manual recoil system for immediate ignition, keeping your sailboat rigging dead simple. Yamaha casts the 28 kg assembly with high-grade impact-deflecting aluminum, creating a structural barrier that survives hidden submerged log strikes when repowering portable utility skiffs.

Key Features of Yamaha F4LMHA

• Manual Recoil Starting: Strips heavy starter motors and battery cables completely from your boat layout, maximizing available gear payload capacity.
• 20-Inch Long Shaft: Reaches deep below elevated sailboat auxiliary brackets, keeping the propeller fully engaged during steep coastal swells.
• 139cc OHV Powerhead: Produces massive low-end torque internally, lifting heavily loaded 12-foot rigid dinghies onto plane much faster.
• Multi-Function Tiller Handle: Concentrates shift and throttle inputs directly into your operating hand for immediate physical obstacle avoidance.
• Five-Position Manual Tilt: Features a rigid mechanical lock, safely holding the gearcase out of the water physically while moored at the dock.
• 28 Kilogram Dry Weight: Maximizes absolute portability, allowing a single operator to lift the engine physically onto high sailboat decks.
• Carbureted Fuel Induction: Meters gas reliably into the cylinder, providing steady low-RPM operation when navigating no-wake harbor zones.
• Through-Prop Exhaust: Channels toxic combustion gases directly underwater, keeping the aft operator station completely free of smoke.
• Accessible Oil Drain: Simplifies routine crankcase lubrication changes, saving significant time during seasonal maintenance prep without specialized tools.
• Clean Four-Stroke Combustion: Burns unleaded fuel highly efficiently without messy two-stroke oil mixing, keeping your tender completely free of oil slicks.

Why Choose Yamaha F4LMHA

You buy this motor to keep rigging dead simple on a tall 20-inch transom boat. It offers zero remote steering capability and lacks heavy electric start components. Do not attempt to mount this long shaft on a 15-inch tall transom. Finding a reliable manual recoil start outboard solves heavy payload limits.

• Weigh your boat to verify it safely handles this specific 28 kg engine block mass.
• Check the tiller handle sweep path to confirm it clears your rear seating bench.
• Keep local lakes clean by running highly regulated four-stroke engine configurations.

Ideal Application and Vessel Fitment

This ultra-portable 20-inch outboard thrives on small inflatable tenders, sailboat auxiliaries, and rigid fiberglass dinghies requiring minimalist power with maximum payload capacity. Because it strips away heavy electric starter motors and 12-volt battery banks, operators gain absolute ignition reliability for remote area fishing. The direct tiller control provides complete directional thrust, making this lightweight 4hp manual start outboard an incredibly nimble propulsion choice for navigating crowded anchorages safely.

Warranty, Support and Maintenance

Authorized recreational operation receives a 3-Year Limited Pleasure Craft Warranty alongside exceptional factory support. Registered commercial applications fall under a strict 1-Year Commercial Warranty with separate terms applied to the block. Scheduled maintenance requires replacing gearcase lubricants and changing oil filters at manual-specified intervals. Always save all physical service records. Your engine serial number acts as the only way to source exact genuine replacement parts. Mulmotor provides pre-purchase product guidance and order-related customer support.