Description

Buy New Yamaha F70 70HP 4 Stroke Long Shaft Outboard Engine Online

The new Yamaha F70 70HP 4 Stroke Long Shaft Outboard Engine delivers class-leading performance for boaters in the United States and across Europe. Its advanced powerhead features a single overhead camshaft (SOHC) with four valves per cylinder, increasing total intake valve area by 17% while reducing piston and valve weight by up to 10% compared to the T60 model. This engineering breakthrough provides substantially more horsepower-per-liter of displacement than any competing outboard – whether four-stroke or two-stroke direct-injected.

This engine is the lightest in its class at just 115 kg (253 lbs) dry weight – even lighter than competitive two-stroke direct-injected outboards. From the specially designed engine block to the two-piece upper case, every ounce is optimized for performance without sacrificing durability. Precise throttle control routes all intake air through a single throttle valve, then through individual long intake tracks that are pulse-tuned for optimal air density and timing, maximizing both power and fuel efficiency.

Why Buy the Yamaha F70?

Electric start with TCI microcomputer ignition
F/N/R gear shift with 2.33:1 ratio
Power trim and tilt from -4° to 16°/65°
34 units in stock – Model F70, Yamaha Outboards brand

Specifications:

Specification	Details
Engine Type	Four stroke, 4-cylinder
Displacement	996cc (60.8 ci)
Bore & Stroke	65 x 75mm (2.56 x 2.95 in)
RPM Range	5,300 – 6,300
Compression Ratio	9.4
Induction System	SOHC / 16 valve
Alternator Output	17 Amps
Fuel Delivery	Multi-point electronic fuel injection
Starting	Electric
Ignition	TCI Microcomputer
Lubrication	Wet sump
Trim/Tilt Degree	-4° through 16°/65° w/ PTT
Exhaust	Through Propeller, Water-cooled, Labyrinth
Cooling	Raw water, Thermostatic Control
Gear Shift	F/N/R
Gear Ratio	28/12 (2.33:1)
Recommended Fuel	Unleaded Gasoline (Min. Pump Octane 87)
Recommended Oil	Yamalube 4-M FC-W 10W-30
Oil Capacity	2.1L (with filter)
Shaft Length	20 inches
Dry Weight	115 kg (253 lbs)