Honda GC160 5.0 emits thick blue smoke. I used it several days when it came to a stop. Filled the tank with fresh (no mix) gas & it would not start. Bought & changed the old spark plug. After several removal & cleaning carbon off the plug, it finally kept running. Within 2 minutes there was smoke & I shut it off. (Power Washer). What is happening?

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    Have you checked the oil in the engine? Is it overfull? – Moab Sep 17 '18 at 23:19
  • Welcome to Motor Vehicle Maintenance & Repair! – Pᴀᴜʟsᴛᴇʀ2 Sep 18 '18 at 0:05

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