How to Use Ether to Start an Outboard Motor

Starting an outboard with ether means using a volatile liquid to force an outboard motor to begin the combustion process. You may have to use ether to start an outboard occasionally, particularly after a long period of inactivity. Ether, or diethyl ether, is the main component in many of the "starting fluids" that come in a spray form, and is found at most auto stores. When used properly and only occasionally, it probably won't harm most gasoline engines, including outboard motors.

Things You'll Need

  • Safety lanyard
  • Ignition key
  • Spray ether
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Instructions

    • 1

      Remove the top cover of the motor. Remove the nuts that hold the air silencer in place on top of the carburetor.

    • 2

      Insert the tab on the safety lanyard into the outboard's kill switch slot. Move the shifter or throttle to neutral, if your motor has a remote control unit. Move the throttle handle -- the twist-grip on the tiller -- to the start position.

    • 3

      Insert the ignition key in the key switch. Turn the key switch to the "On" position or turn the battery switch on.

    • 4

      Spray ether directly into the throats of the carburetor. Spray the ether into the carburetor for the amount of time recommended by the ether manufacturer on the spray container label.

    • 5

      Attempt to start the engine, using the key switch or recoil starter. Repeat, until the motor starts.