Massive power for large offshore boats
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The In-Line Four V MAX SHO four strokes have achieved the unthinkable—packing signature V MAX SHO hole shot and acceleration into streamlined designs. These 1.8- and 2.8-liter dynamos feature surprising tech packages with 16 valves, double overhead cams and electronic fuel injection—for maximum efficiency and high performance. This makes the I-4 V MAX SHOs perfect for smaller bass, flats and bay boats and other performance hulls. With the addition of 25-inch-shaft options for all of our I-4 V MAX SHO outboards, anglers prowling big waters on multi-species, bay and flats boats have a competitive edge that runs deeper than ever. Find a Demo Tour
All In-Line Four V MAX SHO® outboards are now available with 25-inch shafts. This brings V MAX SHO performance to multi-species boats, bay boats, pontoons and other 25-inch transom applications.
The I-4 V MAX SHO® design maximizes combustion efficiency in a way that no two stroke can, delivering clean, quiet power and performance.
The V MAX SHO® 175 and 150 feature Variable Camshaft Timing, which optimizes the angle of the intake camshaft to increase power and throttle response in the low- and mid-RPM ranges.
In-line Four V MAX SHO® designs are up to 40% more fuel efficient than traditional carbureted two strokes.
Precision Multi-Point Electronic Fuel Injection and long-track intake system combine to maximize power and fuel efficiency across the line of In-Line Four V MAX SHO® outboards.
An array of advanced sensors constantly provide vital atmospheric and engine conditions to the Engine Control Module (ECM), which instantly makes the precise adjustments for optimum performance.
The I-4 V MAX SHO® 175 and 150 feature a Cowling Drain System and Air Intake Labyrinth System to trap and drain water that enters their cowlings during normal operation.
Lean and mean, the I-4 V MAX SHO® 175 delivers exhilarating hole shot and class-leading top speed. It clocked in at 62 mph with a tournament load—five mph faster than its VF150 sibling.*
*Tests conducted by Yamaha Marine using a Skeeter® ZX190 with a tournament load and two occupants.
The IBEX Award-winning I-4 V MAX SHO® 150 was the first of its kind, inspiring the VF175 and VF115. With exhilarating top speed and a 7.7-second hole shot that bests some competitors by up to 4 seconds, it serves up signature V MAX SHO performance.*
The I-4 V MAX SHO 115 is Yamaha’s fastest 115-hp four stroke, ever, with a top speed of nearly 51 mph.* On top of its impressive speed, it features tech unheard of in its class, including a long-track intake system, free-flow exhaust and knock sensor. Still it’s 10 pounds lighter than a competitor’s two stroke.
*Tests conducted by Yamaha Marine using a Skeeter® TZX170 with a tournament load and two occupants.
*Weight refers to shortest shaft length, and is measured without motor oil, gearcase oil and propeller (except models 25 hp and under, which include a standard propeller). All Jet model weights include the jet pump assembly (weight estimated).