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Thread: 2008 F15x Surging
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06-11-2015, 10:40 PM #1
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06-12-2015, 12:43 PM #2
Heat soak. Theirs something keeping it from getting the cool water thru the ic good. Might ha e to pull screen out of pump and pull ic out and clean it out (probably got sand in it)
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+1 by:
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06-12-2015, 01:10 PM #3
I would check the wastegate arm on the turbo housing. Just oil it up and work it back and forth with a pair pliers.
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06-12-2015, 05:07 PM #4
Thanks for the replies. I don't think it's heat soak because it will do it right away.
I will check the wastegate arm. The turbo looks brand new still. Only 30 hrs on ski.
Does the computer have fuel cut at a certain PSI of boost?
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06-12-2015, 08:47 PM #5
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Knock from bad fuel
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06-13-2015, 08:21 AM #6
That's a good point Joey, Could be that. Would that cause the symptoms I explained? The gas is from last season, but I know the new gas doesn't last.
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06-13-2015, 02:34 PM #7
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It will retard the timing If knock sensor senses it, if it were me I'd do new plugs seafoam and fresh fuel
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+1 by:
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07-08-2015, 10:17 PM #8
The 12X skis are sensitive to the condition of the Spark plugs. I imagine the 15X are similar. Starting the skis, and not letting them get up to temp can foul them. Many people do this when launching their ski from the trailer. I would try new plugs, and see how it runs from there.
I had surge issues years ago. Plugs solved mine.
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07-12-2015, 05:53 PM #9
Drained gas, put a blend of 100 and 93 octane in it, new plugs, and sea foam. Ski rips now. thanks guys!
also put a straight pipe on it from Ramon at H20 Extreme. Sounds nasty!
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07-12-2015, 08:53 PM #10
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Glad to help bro
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