Dan, Clean engine with a degreaser and power wash off carefully so as not to soak electronics. After all excess oil/dirt and grime are removed start engine and observe where oil is leaking from. Tighten bolts/replace gasket/seals/etc. If having dificulty locating oil leak consider getting a Dye additive to put in engine oil, this will aide in finding leak. Check the attached links,instruction and guides, Good luck
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