The rpm vary between 5300-6200 - PWC Forum: The best hang-out for Personal WaterCraft enthusiasts
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Old 09-06-2011, 11:12 AM   #1 (permalink)
Bep
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Default The rpm vary between 5300-6200

I have a problem whit my R12x -03, at full throttle the rpm vary between 5300-6200rpm, it goes down to 5300 o then it load up to 6200 and then down again, back and forth..
Does anyone have any idea what could be the problem?

//Markus
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Old 09-09-2011, 09:16 AM   #2 (permalink)
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Could be heat soak or low octane gas.
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Old 09-10-2011, 03:15 AM   #3 (permalink)
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It is not the low octane gas ( 95 octane ), what du you mean whit heat soak?
I read in an other forum that it could be the wastegate, you know anything about that?
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Old 09-13-2011, 08:58 PM   #4 (permalink)
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My '05 f-12x has similar issue. It runs beautiful all day at 5400rpm, but not any higher. Wastegate solenoid? Any ideas?
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Old 10-13-2011, 12:54 PM   #5 (permalink)
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Quote:
Originally Posted by dslskier View Post
My '05 f-12x has similar issue. It runs beautiful all day at 5400rpm, but not any higher. Wastegate solenoid? Any ideas?
Try a new set of plugs from Advanced Auto Parts [$11.00 each].
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Old 10-13-2011, 03:37 PM   #6 (permalink)
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Sounds like a waste gate solenoid fault possibly sticking. Also check if the waste gate itself is moving freely.
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