Abstract: A fuel system for a marine vessel attaches a fuel pump directly to the outer surface of a remote fuel tank that is displaced from the internal combustion engine to which the fuel is supplied. A pressure regulator is used to maintain a particular fluid pressure at the outlet of the pump and excess fuel is returned directly into the fuel reservoir. Fuel is drawn upward by the inlet of the pump through a conduit that extends downwardly into fluid communication with liquid fuel within the remote reservoir. A filter can be provided to filter the liquid fuel as it is drawn into the conduit.

Abstract: A flame arrestor (70) for a marine engine (12) includes an air box (72) mounted to the combustion air intake (14), and a uniplanar flame arresting element (78) mounted to the air box (72) and passing combustion air therethrough in a first direction (80) into the air intake (14) and blocking flame propagation in a second opposite direction out of the air intake (14). Air flow from the flame arresting element (78) to the air intake (14) is rectilinear.