Johnson 115 Outboard Performance

Johnson 115 hp outboard motors were built to provide fast performance for boating enthusiasts looking for a sporty ride on the water. These engines were manufactured between 1991 and 2006.

  1. RPM and Horsepower

    • With a wide open throttle, most Johnson 115 outboard motor model years had a maximum rpm of 5,500 and a minimum rpm of 4,500. The 2005 model was the only engine with a maximum rpm of 6,000 and a minimum of 5,000 rpm with a wide open throttle.

    Performance Features

    • Johnson derived its performance for the 115 hp outboard motor from a four-cylinder engine. These units used a two-stroke system, with the exception of the 2005 engine, which used a four-stroke system with six cylinders. The 2005 model featured a spline count of 15, while the rest of the engines used 13 splines.

    Optimal Speed Range

    • In 2005, Johnson 115 hp outboard engines had a maximum optimal speed range of 47 to 61 mph using a four-blade propeller and a wide open throttle. The rest of the 115 hp motors featured a maximum optimal speed range of 43 to 56 mph using a wide open throttle and a four-blade propeller.