1980 Mariner by Mercury Marine 30 HP 30E This 30 horsepower Mariner by Mercury Marine outboard, manufactured in 1980, is a saltwater model. This is a 2 cylinder model. The displacement for the pistons is 30.3.
The bore for this outboard is 2.83 inches and the stroke is 2.40 inches. This engine has power steering and a electric-type starter. Serial Number: 689- RPM Information: 4500-5500 Your engine's RPM range is important in choosing the right propeller for a given application. For example, if you look at your tachometer at top speed and it is not within the engine's RPM range then that is generally not good. 2016 nissan bluebird sylphy service manual.
Mercury Mariner Outboard Free Manuals
You want your RPM's to be within the proper range while at wide open throttle (WOT). Be sure to do your testing under your normal boating conditions and with a good propeller (not bent, cracked, or excessively chipped). Information on this page is provided to you as a free service of iboats.com. Because this information has come from many sources we can not guarantee its accuracy. Even if this information is the same as the original factory specs, boats are sometimes modified. Thus, for safety and other reasons, it is a good idea to verify information here to make sure it matches up with your boat.
The iboats are another excellent source of information. The iboats can likely help you find a lot of outboard information as it is arranged by subject. Engine Manual: Information on this page has come from multiple third parties and can not be guaranteed to be accurate.