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June 11th, 2012, 12:08 PM   #1
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2007 FS 550e weird noise..

Hey all, I just picked up a 2007 FS550e, been riding it a little bit but there's a noise that's bothering me. it sounds like a jetsons car at certain RPM. so far i've replaced the exhaust springs as they were incredibly loose, but the sound persists.
only happens at low to mid rpm's and it's not load biased.


pic of said machine. i'm pretty happy with it overall, first thing i did was change the oil and put it back to road-legal status. having a hard time finding a bolt for the front brake caliper though, so I haven't got much ride time in and certainly not enough to push it hard.
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June 11th, 2012, 12:42 PM   #2
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Re: 2007 FS 550e weird noise..

Its probably the normal intake sound. It has been also described as a bird chirping .
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June 11th, 2012, 12:56 PM   #3
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Re: 2007 FS 550e weird noise..

oh? yeah that's about what it sounds like. is there any way to change / fix it so it doesn't sound that way?
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June 11th, 2012, 02:52 PM   #4
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Re: 2007 FS 550e weird noise..

Gut the silencer?...j/k
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June 11th, 2012, 03:28 PM   #5
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Re: 2007 FS 550e weird noise..



Modifying your seat for more airflow may change the intake sound but a backfire through the carb could be painful.
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June 11th, 2012, 05:17 PM   #6
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Re: 2007 FS 550e weird noise..

yeah, i can't see myself modifying the seat like that. I'm going to check the valve clearances this week when my roommate gets home from up north.
in the meantime i'm still on the hunt for a replacement bolt for the front brake caliper (the M10x35 ws=13 collar screw.) it seems that nowhere around here carries fine thread metric bolts and none of the stealerships in a 100km radius stock the part. it has to be ordered from the KTM warehouse which takes about a week, and they only do orders on monday! hah.
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