I just got a Yahama 4hp motor from my boss that was sitting in a warehouse for at least 6 years. Before that it was on the dingy of his sail boat. My question is can anyone tell me the year of this motor so that I can get a good shop manual? and can anyone recommend a good shop manual? <br /><br />The carb is gummed, the pull rope is broken off, the water pump needs replacing and I want to do the work myself. <br /><br />Here is the Tag info:<br /> Model#: 4MSHR<br /> Code: 6EO S<br /> Serial#: 139101<br /><br />Thanks,<br /><br />Mikey G.