Some LEHR Outboard Marine Motor Operator's Manuals PDF above the page.
LEHR motors operate on propane, which makes them undoubtedly cleaner from an environmental point of view, but in this case it is important for us, but not their first advantage.
A 4-stroke engine operating on a fundamentally different type of fuel, long and successfully mastered by road equipment and large shipbuilding, finally arrived in a small fleet.
A small gas engine proved to be a high-torque, transportable, eagerly digesting domestic blue fuel, a little noisy.
Easy to start, does not require special starting, as well as conservation winter procedures. As you can understand, he is not afraid of either water in the fuel tank, or scorched gasoline, or deposits in the carburetor.
According to the advertising brochure, he has a massive fuel consumption at the level of ordinary four-stroke engines. Is it profitable to use gas filling instead of gas?
The buyer must decide for himself. The lower cost of propane-butane in comparison with gasoline is obvious, but the benefit is realized with a sufficiently long operation of the engine.