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XS400SJ slow to drop to idle??

Discussion in 'Other Motorcycles' started by Shawns, Jul 13, 2008.

  1. Shawns

    Shawns New Member

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    Changed the intake rubbers and cleaned the carbs, but the bike runs good but the engine rpm is slow dropping to idle. Any suggestions??
     
    Shawns, Jul 13, 2008
    #1
  2. willierides

    willierides Member

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    Lean condition....maybe a clogged pilot jet or an air leak around the boots or somewhere.
     
    willierides, Jul 15, 2008
    #2
  3. tylernt

    tylernt Member

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    Idle speed knob screwed in too far. Back it off. If the idle is too slow when you back it off, then there is another problem elsewhere -- sync, mixture, or vacuum leak.
     
    tylernt, Jul 27, 2008
    #3
  4. MrShake

    MrShake Member

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    Mine was a vacuum leak.
     
    MrShake, Jul 28, 2008
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  5. element51

    element51 New Member

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    might be a bit late, but mine turned out to be the idle screw. they're very sensitive on these bikes
     
    element51, Oct 12, 2008
    #5

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