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.
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.
KEY FEATURES
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 35 amps for the VF90, the 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.
SPECS :Â
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. Â Â 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
Alternator Output   35 amp
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°
Dry Weight   20″ shaft / (160 kg) 353 lbs, 25″ shaft / (164 kg) 362 lbs
Mounting Centers   26″
Steering Angle (maximum)   35° from center, either direction
Warranty   Limited Pleasure Three Years, Government Three Years, Commercial One Year
STANDARD FEATURES :
Power Trim & Tilt
Owner’s Manual
Prop included




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