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    Yamaha 2001 200 hp hpdi stalls when advancing throttle in neutral

    Hello All, Have an odd one here. when I start my engine and break away the throttle to raise the rpm's a bit it stall every time. This is something new. The port engine does not do this. I have had this on the diagnostic program and all test are good. Need some input on this. Some history look...
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    2001 Yamaha 200hp hpdi stalls, no power

    Have a 2001 Yamaha hpdi with 500 hrs. C Motor idles but as soon as I advance the throttle it misses and stalls. Some history. Had old gas in the tanks (almost 200). Added fuel stabilizer, pulled about 5 gallons of water out of the tanks. removed about 25 gallons of gas and replaced it with...
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