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DF225 Won't Idle

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  • DF225 Won't Idle

    We went out today and the motor ran fine (2004 DF225) for a couple of hours. After anchoring for 3 hours we were preparing to move to another spot. Starboard engine would start and immediately die. I could advance the throttle about 10-15% and it would start in neutral, surge a bit and then run at the advanced throttle position. However, it would die almost immediately when I throttled down and tried to shift it in to gear. Port engine was fine the whole time. Any suggestions on where to start?

  • #2
    Your problem could be the Idler Control Valve.

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    • #3
      Thanks for the input. I replaced all the filters today and still have the problem. I'll remove the IAC tomorrow, swap it with the port engine and let you know what happens.

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      • #4
        Just wanted to let everyone know that the problem was the IAC valve. I swapped them between the two engines to verify it as the cause. These are a bit pricey at $230-300 on-line, but cleaning it didn't help so I had no choice.

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