|This 1974, 9.8 hp Mercury is made for saltwater. This outboard engine weighs approximately 66 pounds. It has 2 cylinders. The pistons have a 10.9 displacement. The bore width is 2.0" and the stroke length is 1.75". This model has a recoil starter and power steering.|
Serial Number: 3795658
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. 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.