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  1. #1

    Join Date
    Mar 2007
    wilmington, NC
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    front seal drips

    New 61fx,leaks ARO after sitting a while, just broke it in,runs fine,only 2 tanks of fuel run thru. no play at all in shaft,,is this a normal occurence? Also, where is the low speed needle valve located,,manual doesnt show where it is.

  2. #2
    Join Date
    Apr 2002
    Champaign, IL

    RE: front seal drips

    If you put oil into the engine after running it, and you then store the engine nose down, you'll get oil dripping out through the front bearing. That's because the front bearing really doesn't seal the engine. The seal is caused by a film of oil between the crankshaft and crankcase between the carburetor and front bearing. The pressures inside the engine force oil to the front bearing while the engine's running. There's a small channel in that area to help suck back excess oil. When the engine's running, a small amount of unburned fuel will come from there, but there should be no spraying.

    The idle mixture adjustment for the .61 FX should be in the center of the throttle arm. It looks like a small slotted screw.
    Bill Baxter, Manager Hobby Services/Futaba Service/North America
    3002 N. Apollo Dr. Ste. 1 Champaign, IL 61822 USA
    Service Phone: 217 398-0007

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