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  1. J

    hpi 5.9 strange problem?

    I have a 5.9 that wont return to a clean idle. acting lean revving high at closed throttle after a wot. I have adjusted the low speed needle till its ready to fall out. And the high speed till its way rich and wont Rev out. Same problem exists.very high "runaway"idle for about 4 to 8 seconds...
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