Hi guys. I am trying to fix an old engine between me and my friend but we don't know what year the engine is. I took it a mechanic and the guy told me that it was going to cost me a grand to fix and because the engine is so old he couldn't tell me how long it would last. that's why i am attempting to fix it myself. The sticker that i suspect show the model number, etc appears to be painted over When i bought the boat the guy who sold it to me told me that the engine was a 1980 75hp johnson but i am not sure. Since me and my friend are going to be fixing the engine ourselves i wanted to get the manual for it so it can guide us somewhat. Below are some pictures i took of the engine and the piston i need to replace. If any of you guys could tell me the year and maybe point me in the direction of the manual i should get i would greatly appreciated. thanks.*
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http://i.imgur.com/ZqdtgOG.jpg
http://i.imgur.com/0pvvCT3.jpg
http://i.imgur.com/WBqPmaO.jpg
http://i.imgur.com/GqKnGTN.jpg
damage piston part number "320955"
http://i.imgur.com/NBAYwby.jpg?1
ps. I am looking for that piston so if you know where i can find it even better.*
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http://i.imgur.com/ZqdtgOG.jpg
http://i.imgur.com/0pvvCT3.jpg
http://i.imgur.com/WBqPmaO.jpg
http://i.imgur.com/GqKnGTN.jpg
damage piston part number "320955"
http://i.imgur.com/NBAYwby.jpg?1
ps. I am looking for that piston so if you know where i can find it even better.*