Steps for Winterizing Carbureted Engine

Winterizing Your Carbureted Fuel System

WARNING ----  Fuel vapors can be present in the engine compartment. Avoid injury or damage caused by fuel vapors or explosion. Always check for leaking fuel or the smell of gasoline and ventilate the engine compartment prior to starting the engine or performing any work!

Make sure you have followed the steps on the winterizing page regarding ethanol fuel

Prepare carbureted fuel system for extended storage as follows:

  1.       Provide cooling water to the engine
  2.       Remove the flame arrestor assembly – MAKE  SURE  YOU  DON’T  DROP  THE HARDWARE IN THE CARBURETOR
  3.       Close the fuel shut off valve, if equipped. If not, remove the fuel line from the tank to the filter and plug both the line and the fitting.
  4.       Start the engine
  5.       While operating the engine at fast idle (12-1300 rpm) fog the internal surfaces of the induction system and combustion chambers by spraying approximately 8 oz. of Mercury/Quicksilver Storage Seal Rust Inhibitor into the carburetor
  6.       Spray the remaining 2 oz of Storage Seal Rust Inhibitor into the carburetor just as the engine begins to stall due to lack of fuel. Allow the engine to stop.
  7.       Turn ignition key to “OFF” position.
  8.       Replace the flame arrestor and hardware

Continue with the rest of the steps on the winterizing page