Bing 54 Carburetor, checking float level on Rotax two stroke engines.

Bing 54 Carburetor, checking float level on Rotax two stroke engines.
  1. Start and warm up engine.
  2. Run the engine at 3/4 power for 2 minutes.
  3. Let engine idle back and cool down for 1 minute.
  4. Shut off engine and fuel system (if the fuel system is an overhead system).
  5. Remove float bowl.
  6. Remove the floats from the float bowl while float bowl is sitting on a level surface.
  7. The fuel level should measure approximately 1/2" from the top edge of the float bowl.

Fuel level below 1/2" will cause a lean mixture.
Fuel level above 1/2" will cause a rich mixture.

BING 54 Carburetor setting float fuel level

BING 54 Carburetor Setting Float Fuel Level

The simplest and easiest way to check your float level is to:

  1. Remove your Bing 54 carb from your aircraft, with the top plate removed and your float bowl off.
  2. Turn the carburator upside down.
  3. Place the carb on a flat level surface.
  4. Look at the two float arms they should be level wit each other.
  5. They should be level with the bottom of the base of the carburetor.
If the arms are not level with each other, first level them with each other then level them by bending the float arm Shown as  A where the needle clips on,  until they are both LEVEL  with each other and with the base of the carb. 

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