40HP
Enough Push For A Loaded RIB
The 40HP takes Yamaha’s four-stroke know-how and puts it into an SOHC in-line three that pulls harder than the badge implies. Multi-point fuel injection times each cylinder’s charge individually, so starting is instant on the coldest morning and the mid-range keeps pulling cleanly through a 5000 – 6000 r/min full-throttle band. With 29.4 kW at the propeller shaft, tenders, RIBs and day boats all move with easy authority.
Control is what turns that into a useful day. Variable trolling RPM steps the engine in neat 50 RPM increments for lure-perfect pace, while a 2.0 (26/13) gear ratio and F-N-R shift keep low-speed manoeuvres deliberate. Shallow water drive lifts the leg for beach launches, a 17 A alternator (13 A battery charging) keeps the electronics fed, and 40 degrees of steering each way makes a tight marina feel roomier than it is.
DETAILS
ABOUT 40HP
ENGINE
| ➢ CATEGORY | Mid range (F200-F30) |
|---|---|
| ➢ Engine type | SOHC, In-line 3 cylinders |
| ➢ Displacement | 747 cc |
| ➢ Bore x stroke | 65.0 × 75.0 mm |
| ➢ Compression ratio | 9.4 : 1 |
| ➢ Fuel induction system | Fuel injection |
| ➢ Lubrication system | Wet sump |
| ➢ Engine oil capacity | 1.7 L / 1.5 L (with / without oil filter replacement) |
| ➢ Ignition / advance system | CDI |
| ➢ Alternator | 17 A (battery charging: 13 A) |
DIMENSIONS
| ➢ Overall length | EHT, EHD: 1362 mm, ET, ED: 698 mm |
|---|---|
| ➢ Overall width | 384 mm |
| ➢ Overall height | S: 1228 mm, L: 1350 mm |
| ➢ Engine transom height | S: 414 mm, L: 536 mm |
| ➢ Steering angle | 40 degrees each direction |
| ➢ Dry weight | 94 kg – 106 kg |
ADDITIONAL FEATURES
| ➢ Maximum propeller shaft output | 29.4 kW |
|---|---|
| ➢ Full throttle operating range | 5000 – 6000 r/min |
| ➢ Idling speed | 750 – 850 r/min |
| ➢ Shallow water drive | ET, EHT: PTT: variable position, ED, EHD: Hydro: variable position |
| ➢ Gear shift | F-N-R |
| ➢ Gear ratio | 2.0 (26/13) |
| ➢ Gear oil capacity | 0.430 L |
SERENITY
Happy Barely Moving
Wet-sump lubrication, a 9.4 : 1 compression ratio and an idle that settles between 750 – 850 r/min keep the 40HP unbothered when you are hardly moving at all. The digital network gauges are worth wiring in — speed, trim, hours and fuel economy all stop being estimates. And Yamaha’s clean-burn four-stroke design leaves the air behind you as pleasant as the water ahead, dawn launch to dusk drift.
DESIGN
ENGINE
The proportions are the point. A 384 mm overall width and a dry weight spanning 94 kg – 106 kg let the 40HP sit lightly on a small transom without loading the stern, in short (414 mm) or long (536 mm) shaft. Bore and stroke of 65.0 × 75.0 mm give the in-line three its smooth, low-vibration character.
WARRANTY
5 YEAR PROMISE
Enjoy Yamaha’s industry-leading limited warranty, offering up to 5 years of peace of mind. The 40HP is built to exacting standards with proven dependability. Whether you’re navigating calm bays or deep offshore waters, Yamaha’s legacy of excellence keeps you covered.
Contact Us Today
For pricing, availability, and test rides:
GET IN TOUCH YAMAHA VESSELS