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DISCOVER A NEW SPECIES OF PREDATOR


I-4 V MAX SHO® SERIES

Mechanical: 175 hp 150 hp 90 hp Mechanical or Tiller: 115 hp 90 hp

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. This powerful family now includes the all-new I-4 V MAX SHO 90, which packs the biggest punch of any 90-horse on the water. Overall, this series of 1.8- and 2.8-liter dynamos features a surprising tech package with 16 valves, single- or 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 option of a 25-inch shaft 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

Owner's Manuals
three year limited warranty
ibex innovation winner
ultra low emission

STREAMLINED POWER, EXTENDED

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.

POWER & PERFORMANCE

Quiet Power and Performance

Quiet Power and Performance


The I-4 V MAX SHO® design maximizes combustion efficiency in a way that no two stroke can, delivering clean, quiet power and performance.

Midrange Power and Response

Midrange Power and Response


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.

Fuel Efficient

Fuel Efficient


In-line Four V MAX SHO® designs are up to 40% more fuel efficient than traditional carbureted two strokes.

Optimum Power

Optimum Power


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. 

Power Management

Power Management


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.

RELIABILITY & DURABILITY

RELIABILITY & DURABILITY

UNBEATABLE RELIABILITY


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.

Convenience & Control

EXTRA SPACE 

A four stroke in-line design means there's no need for an external oil tank. That means less weight and more storage room in the boat for tackle and gear.
 

AMPLE CHARGING POWER

With 50 amps for the I-4 V MAX SHO 175 and 150, and 35 amps for the 115 and 90, their alternators produce enough power for battery charging and a range of on-board electronics.
 

EASY RIGGING

I-4 V MAX SHO® outboards feature mechanical controls for easy, convenient rigging with most bass, bay and flats boats, and are compatible with analog, 6Y5 digital or Command Link® gauges.

Product Videos

Yamaha V MAX SHO i4

Yamaha V MAX SHO i4

Meet the Line-Up

XF450

V MAX In-line 4 175 hp

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—up tofive mph faster than its VF150 sibling.*

  • 2.8L high-output four cylinder.
  • 480 lbs. dry weight
  • 20-inch and 25-inch shaft options
  • 50 amps of charging power
  • Command Link® compatibility with Variable Trolling

*Tests conducted by Yamaha Marine using a Skeeter® ZX190 with a tournament load and two occupants.

XF450

V MAX In-line 4 150 hp

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, it serves up signature V MAX SHO performance.*

 
  • 2.8-liter high-output four cylinder
  • 480 lbs. dry weight
  • 20-inch and 25-inch shaft options
  • 50 amps of charging power
  • Command Link® compatibility with Variable Trolling

*Tests conducted by Yamaha Marine using a Skeeter® ZX190 with a tournament load and two occupants.

XF450

V MAX In-line 4 115 hp

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.

 
  • 1.8-liter high-output four cylinder
  • 377 lbs. dry weight
  • 20-inch and 25-inch shaft options
  • 35 amps of charging power
  • Command Link® compatibility with Variable Trolling

*Tests conducted by Yamaha Marine using a Skeeter® TZX170 with a tournament load and two occupants.

XF450

V MAX In-line 4 90 hp

The All-New VF90 In-Line Four V MAX SHO. A single-overhead-camshaft design with four valves per cylinder and 1.8-liter displacement make the I-4 V MAX SHO 90 a class leader in torque, top speed and efficiency. Even still, it's one of the quietest 90-horsepower outboards on the water. That makes for some pretty stealthy fishing.
Available for mechanical remote or tiller control.

 
  • Only 353 pounds
  • Available in 20” or 25” shafts
  • Powerful 35-amp alternator
  • Optional Variable Trolling RPM via the Command Link tachometer or our new, helm-mounted remote VTS® Switch

Specs & Compare

Engine Comparison
Engine Type Inline 4
Displacement 2.8L
Bore x Stroke 96 x 96.2mm (3.78 x 3.79in)
Prop Shaft Horsepower 175 hp at 5500 rpm
Full Throttle RPM Range 5000 ~ 6000 rpm
Alternator Output at W.O.T. 50 Amp
Compression Ratio 10.3:1
Fuel Induction System EFI
Weight † 218 kg (480 lbs) - 222 kg (489 lbs)
Recommended Fuel Octane 89
Recommended Engine Oil Yamalube® 4M (See owner's manual)
Recommended Fuel Filtration Yamaha 10-Micron Fuel/Water Separating Filter (external)
C.A.R.B. Rating 3-Star
Exhaust Through Propeller
Intake 16
Ignition TCI Microcomputer
Spark Plug LFR6A-11
Starting System Electric
Lubrication Wet Sump
Engine Oil Capacity 4.5L/4.3L w/without filter
Recommended Cooling Thermostatic Control
Ethanol Blend Limit 10% Maximum
Gear Ratio 1.86:1
Gear Shift Forward, Neutral, Reverse
Shaft Length 20" - 25"
Degree of Tilt 70°
Degree of Trim -4° through +16°
Mounting Centers N/A
Steering
Steering Angle (maximum) 32° from center, either direction
Warranty Limited 3-Year Pleasure, 3-Year Government, 1-Year Commercial

† 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).

Product Preview
Engine Comparison
Engine Type Inline 4
Displacement 2.8L
Bore x Stroke 96 x 96.2mm (3.78 x 3.79in)
Prop Shaft Horsepower 150 hp at 5500 rpm
Full Throttle RPM Range 5000 ~ 6000 rpm
Alternator Output at W.O.T. 50 Amp
Compression Ratio 10.3:1
Fuel Induction System EFI
Weight † 218 kg (480 lbs)
Recommended Fuel Octane 89
Recommended Engine Oil Yamalube® 4M (See owner's manual)
Recommended Fuel Filtration Yamaha 10-Micron Fuel/Water Separating Filter (external)
C.A.R.B. Rating 3-Star
Exhaust Through Propeller
Intake 16
Ignition TCI Microcomputer
Spark Plug LFR6A-11
Starting System Electric
Lubrication Wet Sump
Engine Oil Capacity 4.5L/4.3L
Recommended Cooling Thermostatic Control
Ethanol Blend Limit 10% Maximum
Gear Ratio 2.00:1
Gear Shift Forward, Neutral, Reverse
Shaft Length 20" - 25"
Degree of Tilt 70°
Degree of Trim -4° through +16°
Mounting Centers N/A
Steering
Steering Angle (maximum) 32° from center, either direction
Warranty Limited 3-Year Pleasure, 3-Year Government, 1-Year Commercial

† 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).

Product Preview
Engine Comparison
Engine Type Inline 4
Displacement 1.8L
Bore x Stroke 81 x 88.9mm (3.19 x 3.5in)
Prop Shaft Horsepower 115hp at 5500 rpm
Full Throttle RPM Range 5300 ~ 6300
Alternator Output at W.O.T. 35 Amp
Compression Ratio 10.0:1
Fuel Induction System EFI
Weight † 171 kg (377 lbs) - 175 kg (386 lbs)
Recommended Fuel Octane 87
Recommended Engine Oil Yamalube® 4M (See owner's manual)
Recommended Fuel Filtration Yamaha 10-Micron Fuel/Water Separating Filter (external)
C.A.R.B. Rating 3-Star
Exhaust Through Propeller
Intake 16
Ignition TCI Microcomputer
Spark Plug LKR6E
Starting System Electric
Lubrication Wet Sump
Engine Oil Capacity 3.2L/3.0L
Recommended Cooling Thermostatic Control
Ethanol Blend Limit 10% Maximum
Gear Ratio 2.15:1
Gear Shift Forward, Neutral, Reverse
Shaft Length 20" - 25"
Degree of Tilt 70°
Degree of Trim -4° through +16°
Mounting Centers N/A
Steering
Steering Angle (maximum) 35° from center, either direction
Warranty Limited 3-Year Pleasure, 3-Year Government, 1-Year Commercial

† 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).

Product Preview
Engine Comparison
Engine Type Inline 4
Displacement 1.8L
Bore x Stroke 81 x 88.9mm (3.19 x 3.5in)
Prop Shaft Horsepower 90hp @ 5500 RPM
Full Throttle RPM Range 5000 - 6000 RPM
Alternator Output at W.O.T. 35 amp
Compression Ratio 10.0:1
Fuel Induction System EFI
Weight † 20" 353 lbs, 25" 362 lbs
Recommended Fuel Regular Unleaded (Minimum Pump Octane 87)
Recommended Engine Oil Yamalube® 4M (See owner's manual)
Recommended Fuel Filtration Yamaha 10-Micron Fuel/Water Separating Filter (external)
C.A.R.B. Rating 3-Star
Exhaust Through Propeller
Intake 16
Ignition TCI Microcomputer
Spark Plug LFR5A-11
Starting System Electric w/ PTT
Lubrication Wet Sump
Engine Oil Capacity 3.2L / 3.0L (with / without filter)
Recommended Cooling Water, Thermostatic Control
Ethanol Blend Limit 10% Maximum
Gear Ratio (28/12) 2.33
Gear Shift F-N-R
Shaft Length L = 20" X = 25"
Degree of Tilt -4° through +66°
Degree of Trim -4° through +16°
Mounting Centers 26"
Steering
Steering Angle (maximum) 35° from center, either direction
Warranty Limited Pleasure Three Years, Government Three Years, Commercial One Year

† 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).

Product Preview

Perf. Bulletins

Manufacturer PowerMatched Boat Model Engine Configuration Bulletin
Manufacturer PowerMatched Boat Model Engine Configuration Bulletin
Manufacturer PowerMatched Boat Model Engine Configuration Bulletin
Manufacturer PowerMatched Boat Model Engine Configuration Bulletin