Description
Electronic Fuel Injection (EFI) system
The HDEF50 EFI uses a programmed electronic fuel injection (EFI) system, equipped with the Delphi electronic injection solutionrenowned for its maturity and reliability.
This system precisely controls the ignition timing from the moment of start-up, ensuring superior overall performance, instant throttle response and excellent fuel economy.
Quick Start
The electronic injection system automatically adjusts the air-fuel ratio, allowing for quick and easy starting and preheating.
No complex manipulation is required: simply turn the key to start instantly.
Quieter operation
Through a reverse exhaust relief system, exhaust gases are channeled into the water via the propeller section.
This effectively reduces operating noise, makes the engine quieter and smoother, improve substantially comfort navigation on board.
Engine warning system
The protection system the engine continuously monitors key operating parameters.
It issues real-time alerts in the event of an anomaly (such as overheating or low oil pressure), thereby reducing the risk of mechanical damage while maximizing safety and reliability.
High-thrust transmission ratio
The HDEF50 EFI is designed with a higher gear ratio, providing powerful thrust in both forward and reverse.
This design improves handling, responsiveness and overall performance to suit all your navigation and maneuvering scenarios.
Fuel economy at cruising speed
The multi-point injection system and the long air intake manifold work in synergy to automatically adjust the air-fuel ratio according to engine speed and load, maximizing power across the entire speed range.
At cruising speed, it allowssave up to approximately 20% on fuel compared to engines in the same class, offering an ideal balance between power and operating costs.
Technical parameters
| Characteristic | Value |
|---|---|
| Rated power (kW) | 36,8 kW (50 CV) |
| RPM Range | 5000-5800 |
| Engine type | 4 stroke |
| Cylinders | 4 |
| Displacement (cc) | 996 cc |
| Bore × Stroke (mm) | 65 × 75 |
| Weight | S (short shaft): 121 kg (267 lb) L ( Long Shaft) : 126 kg ( 278 lb ) |
| operating position | Forward-Neutral (F-N) |
| Ignition system | ECM |
| Cooling system | Water cooling (by turbine) |





