Midrange 40hp Specs
Engine Type: 3 cyl.
Bore x Stroke: 65 x 75mm (2.56 x 2.95 in.)
Prop Shaft Horsepower: 40hp at 5500 RPM
Full Throttle RPM Range: 5000 - 6000 RPM
Alternator Output at W.O.T.: 17 Amp
Compression Ratio: 9.4:1
Fuel Induction System: EFI
Weight*: 97 kg (214 lbs) - 101kg (223 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)
Warranty: Limited 3-year Pleasure, 3-year Government, 1-Year Commercial
About the Midrange 40hp
Our 747-cc 40-hp midrange provides powerful performance in a compact package that’s available in both propeller- and jet-pump-driven models. With its single throttle valve, long-track intake manifold and electronic control module, it delivers easy starts, fast acceleration and excellent top-end speed.
- Available for mechanical or tiller-handle control
- Only 214 pounds
- Available in a 20” shaft
- Powerful 17-amp alternator
- Optional Variable Trolling RPM Switch (VTS®) via our Multi-Function Tiller Handle, Command Link® tachometer or new helm-mounted remote VTS switch
* 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).