high

  1. B

    Weird Idle Behavior

    So I've got a stock 1981 XS400, stock carbs (running cylinder air filters). My bike idles well once its warmed up, but it behaves very strangely sometimes. Once idling well, if I give it gas, the idle jumps up to about 3-4000RPM and stays there, and eventually returns after a few seconds. I...
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    • Thread
    • adjustment high idle weird
    • Replies: 8
    • Forum: The Garage
  2. O

    Bike revs on its own to around 3-4k rpm

    Hey, I finally got around to starting up the bike today. She starts perfect on the first turn off the starter with no choke (new plugs and filters) but after about 5 minutes at idle she decided she wanted to rev to 3k and 4k if I don't turn her off, again choke or no choke she does this even...
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