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50 hp Johnson problems

Discussion in 'Boats and Motors' started by johnnylittletruck, Aug 5, 2005.

  1. Took my boat out for the first time today. Ran like a champ for 5 minuteds or so then the engine began to surge at higher power settings. Is there a way to adjust the fuel oil mix. It has a separate oil injector tank. I had both carbs rebuilt this spring. Would sea foam or another cleaner help??
     
  2. Dual carbs are tough to set. U need a float / vacum gauge. Goes over the carb. Could be a coil or mod. failin. Hows it idle? Smoke?