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Idle speed dropping when engine gets hot.

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    Idle speed dropping when engine gets hot.

    Hi I have a gs550e it runs good apart from when it get up to temp the idle speed becomes lower, I can readjust to compensate, but then if I leave the bike to cool down even for ten minutes its fine again and I have to turn the idle down. Could this be coils failing when hot?

    #2
    Sounds like the idle circuit might be a bit rich. Also check your charging at idle - if the battery is "draining" at idle then then the bike may want to shut down.
    Current:
    Z1300A5 Locomotive (swapped my Intruder for it), GS450 Cafe Project (might never finish it....), XT500 Commuter (I know - it's a Yamaha :eek:)

    Past:
    VL1500 Intruder (swapped for Z1300), ZX9R Streetfighter (lets face it - too fast....), 1984 GSX750EF, 1984 GSX1100EF (AKA GS1150)
    And a bunch of other crap Yamahas....

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      #3
      Cheers mate I'll turn them in half a turn, see how she runs.

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