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1990 Yamaha 150 ETXD Idle Too High

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  • 1990 Yamaha 150 ETXD Idle Too High

    When I start the motor on the muffs, everything is fine. If I (in neutral of course), give it gas/throttle, then release, the RPMs do not go all the way back down.

    The magneto control lever(s) stop by about 1/4 of an inch from the "end point". I can push them back by hand, lowering the RPMs back to normal idle speed.

    Can anyone tell me why this is happening?

    I've adjusted the throttle cable at the lever as much as possible already...

    Thanks in advance!
    Last edited by DukesFin; March 22nd, 2009, 06:15 AM. Reason: More accurate title
    1990 Cabo 204 Centercon Yamaha 150

  • #2
    Re: Magneto Control Lever - 1990 Yammy 150 ETXD

    Bueller? Anybody?
    1990 Cabo 204 Centercon Yamaha 150

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    • #3
      Re: 1990 Yamaha 150 ETXD Idle Too High

      the spring in the magneto control arm could be missing, the cable could be out of adjustment or bad or the control box is worn.
      unhook the magneto control arm from the control cable.
      with the engine off fully open the arm then fully close it by holding the pin that the cable was attached to.
      if it works now chase the cable or box issue.
      if not carefully inspect the arm assy.
      no tech questions by PM, they wont get answered.
      you have to be trusted by the people that you lie to .

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      • #4
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        Re: 1990 Yamaha 150 ETXD Idle Too High

        Rodbolt:

        Thanks for the tips. It turned out to be the cable adjustment at the helm.

        I didn't want to make something too "tight" if I didn't need to, but after a quick adjustment, it's idling just fine.

        I appreciate it!
        1990 Cabo 204 Centercon Yamaha 150

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