Mercury Launches 5hp Propane FourStroke

January 17, 2019

Yachting Journal

Photo: Mercury Marine

The new Mercury 5hp Propane FourStroke aims to deliver  portability, reliability and convenience running on alternative clean-burning fuel – whether it’s powering aluminum boats, inflatables or sailboats.

With a large 7.5 cubic inch (123cc) displacement, the new 5hp FourStroke Propane outboard offers best-in-class power by delivering a true 5hp.  

Starting at just 59.5 pounds (27.2 kilograms) the 5hp Propane FourStroke is light and easy to carry or transport and can run it on conventional propane so there’s no gasoline to haul with the engine. It’s also friendly to the environment with 30% lower exhaust emissions compared to gasoline.  

With a safety-first approach, the outboard comes standard with a propane auto shut-off valve on the engine and in the fuel hose connector. The standard 6-foot (1.8-meter) fuel hose threads quickly and easily to the outboard and comes with a standard US POL connector on the tank side. A 20-pound (5 gallon) tank of conventional propane provides approximately 10 hours of boating at full throttle.  

Starting is made easy with the manual choke, which enriches the fuel-to-air ratio for fast and reliable starts, particularly when the engine is cold. Auto decompression reduces the pull force when using the starter rope.    

The 5hp Propane FourStroke sports an easy-to-reach shift lever on the engine and has six tilt positions with a shallow-water drive to set the outboard where you need it.  

Sail Power
Sail Power models are designed for boaters who use a small outboard to pilot their sailboat. The Sail Power model is offered in 20-inch (508 mm) and 25-inch (635 mm) shaft lengths, and additional features include:
•12 Volt, 4 Amp / 50-Watt alternator charging system with cable allows sailors to charge a battery to run electronics or lights
•Reverse-thrust exhaust relief and high-thrust propeller improves slow-speed handling and control

electronicsUnited States