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  1. J

    Yamaha question

    I have a 1984 Yamaha eln 40 horse tiller. I bought the engine as a project to help learn how to rebuild them. I rebuilt the entire powerhead one new piston all new piston rings, honed the cylinders. There was no scorching in the cylinders luckily. So I got it all done and put oil in cylinders...
  2. J

    johnson 15hp

    i just got this engine from my late grandpa, and i have no idea what the oil to gas ratio is. its a 1974 johnson 15hp. i think its 50-1 but want a few other opinons before i go with that. thanks for any help
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