Read the Johnson Outboard Owners - Operators Manual this morning. It contains alot of valuable information we sometimes take for granted - lubrication points, test for audible horn for overheating and oil injection system not working, spark plug selection for low speeds and high speeds, lower unit gear ratio of 2 to 1, prop selection specs and prop numbers, procedures for bleeding oil lines, maintenance items, RPM limit (5,500), and horsepower is 115 at prop shaft, 301 pounds. Appears the Johnson is a 1984 model.