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Old 12-13-2006, 02:27 AM   #1 (permalink)
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Default EXUP Servo Motor Wiggin Out at Startup

Dunno if anyone else has ever had this happen to them or not on their 06, searched and didn't find much on this. Just about every time I turn my bike on before starting it, after the fuel pump / fuel injection priming and typical computer boot up noises, the EXUP motor module wigs the hell out and makes crazy noises. I aint too worried about it, as I have unhooked the cabling and left the motor box there so I dont throw a code. It did it once or twice before, but now it's constant since I hit the track at Big Willow a couple weekends ago.

Any ideas if this could cause harm to other areas of my bike? Sounds as if the servo motor is taking a premature dump on me, either that or the computer / program that controls it. Not sure what it's doing when the bike is running, since the bike is loud enough to drown out the noise it's making.

Should I bother gettin this fixed you think? I am worried they will give me shit at the stealership for unhooking the cables, but I dont want to hook them back up before I take it down there to be checked and have that butterfy valve floppin all over the place randomly as I ride there.

Any ideas would be greatly appreciated...
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Last edited by DangerDog : 12-13-2006 at 02:29 AM.
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Old 12-14-2006, 12:18 PM   #2 (permalink)
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Anyone???
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Old 12-14-2006, 12:37 PM   #3 (permalink)
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I have a full exhaust, therefore my cables aren't hooked up either and this same thing happens to me every once in a while. If your EXUP isn't hooked up, why bother fixing it.
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Old 12-14-2006, 12:42 PM   #4 (permalink)
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Yeah I figured the same thing, was just wanting to know if it's malfunctioning could eventually cause other stuff to fail really. Thanks for the input though, good to know that I'm not the only one with this "problem".
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Old 12-14-2006, 12:45 PM   #5 (permalink)
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After mine started making the noise, I ripped apart the motor and pulled out the gears inside to try to shut it up, but it threw a CEL. So I put it back together and threw a fair amount of grease inside to try to make it as quiet as possible.
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Old 05-18-2007, 01:11 AM   #6 (permalink)
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mine just started throwing this CEL tonight
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Old 05-18-2007, 04:51 AM   #7 (permalink)
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mines throwing CEL-18 on a 07 r6.. kinda annoying the shit out of me but it goes away so i don't know >.<
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Old 05-18-2007, 09:18 AM   #8 (permalink)
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to all who are having cell 18 u guys just need to adjust the EXUP cable freeplay cuss sometimes this cable gets stuck.
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