Seloc, Mercury tune up and repair manual. covers 1965 to 86 in line 6 and V6 models. this book doesn't say the H.P. but it does show 200 on the picture of the motor on the front cover. $25. Also Seloc tune up and repair manual covers 1965 to 88, 1 and 2 cylinder models. this book doesn't say the H.P. but it does show 25 on the picture of the motor on the front cover. $25 Also Seloc Mercury tune up and repair manual. covers 1965 to 92, 3 and 4 cylinder, 40 to 115 H.P. models.$25. Also Seloc Volvo penta inboard stern drive tune up and repair manual. covers 1965 to 91 models. this book doesn't say the H.P. and how many cylinders it covers.$25. These books are very clean not dirty or greasy and in great cond.