XF450

For those who want more, the answer is here. Featuring the same 5.6-litre big-block displacement and long list of features as the XF425, the all-new XF450 improves upon the powerful platform that changed the offshore boating game. With more charging, convenience, functionality and horsepower, the Yamaha XF450 will make a splash.

There are no features available

Engine
Engine Type	32-valve V8 Four Stroke
Displacement	5.6-litre (5559 cc) / 339.2 ci
Bore & Stroke	96 x 96 mm (3.78 x 3.78 in)
RPM Range	5000-6000 (Full throttle) 600-1000 (Variable Trolling)
Compression Ratio	12.2:1
Induction System	DOHC, 4 Valves per Cylinder
Alternator Output	96 Amps NET (per outboard, stackable)
Fuel Delivery	Direct Injection
Starting	Electric w/ PTT
Ignition	TCI Microcomputer
Lubrication	Wet Sump
Exhaust	Through Propeller (Except in Reverse Under 2500 RPM)
Cooling	Thermostatic Control, Water
Gear Shift	F-N-R
Gear Ratio	1.79:1 (25/14)
Weight	25? = 437kg / 963lbs. 30? = 448kg / 988lbs.

Fuel & Lubrication
Recommended Oil	Yamalube Marine Lower Unit Gear Lube HD
Oil Capacity	7.8L (8.2 qt) - with filter 7.5L (7.9 qt) - without filter
Recommended Fuel	Regular Unleaded (Minimum Pump Octane 89)