Jet Drive 40 HP

Jet Drive 40 HP


Our 747-cc F40 Jet Drive four stroke produces 30 hp at the pump. Its compact, light-weight SOHC three-cylinder, in-line design features a long-track induction system and a single throttle valve. This creates compact, light-weight power and improves throttle response.


  • Compatible with mechanical controls, our Multi-Function Tiller Handle, analog gauges and Command Link®
  • 219 pounds (including jet pump assembly)
  • Fits 20-inch transom boats
  • Solid 16-amp alternator
  • Nitro Assist Tilt
Engine Type3 cyl
Bore x Stroke65 x 75 mm (2.56 x 2.95 in)
Prop Shaft Horsepower30hp @ 5500rpm
Full Throttle RPM Range5000 ~ 6000 rpm
Alternator Output at W.O.T.16 Amp
Compression Ratio9.4:1
Fuel Induction SystemEFI
Weight †99 kg (219lbs) - 103 kg (227 lbs)
Recommended FuelOctane 87
Recommended Engine OilYamalube® 4M (See owner's manual)
Recommended Fuel FiltrationYamaha 10-Micron Fuel/Water Separating Filter (external)
C.A.R.B. Rating2-Star
ExhaustThrough Jet Nozzle
IgnitionCDI Microcomputer
Spark PlugDPR6EB-9
Alternator Output16 Amps
Starting SystemElectric
LubricationWet Sump
Engine Oil Capacity1.7L/1.5L
Recommended CoolingThermostatic Control
Ethanol Blend Limit10% Maximum
Gear RatioDirect Drive
Gear ShiftForward, Neutral, Reverse
Shaft LengthFits 20" Transom
Degree of Tilt65°
Degree of Trim-4° through +16°
Dry Weight99 kg (219lbs) - 103 kg (227 lbs)
Mounting CentersN/A
Steering Angle (maximum)40° from center, either direction
WarrantyLimited 2-Year Pleasure, 2-Year Government, 1-Year Commercial

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