is the installation of backfire flame arrestors on inboard gasoline engines. These devices attach to the carburetor or throttle body atop the engine, where an air filter might normally be on a car engine. They function ... boats for decades. If you have inboard gas engines, make sure you have a flame arrestor in place on each ...

the engine's cooling water system, it is vital to maintain a continual flow of water ... designs where different engine and gear combinations are offered, and even for some production yachts, the building process can be a little different. After setting the engine and shaft strut, a hole is cut ...