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Noise after trackday crash and pipe swap

Old 10-10-2007, 10:34 AM
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Noise after trackday crash and pipe swap

After my previously covered lowside that left my handlbar, plastics, clutch reservoir, and tank in need of repair; I straightened the front end (mostly), installed new-to-me high mount Leo Vince pipes, and repaired the left clip on and clutch fluid reservoir. Test riding has yielded a great sound from the pipes, but there is also a noise that I can't seem to identify. It is audible in the 3-5k rpm range (I am totally guessing because the gauges are not on the bike) under load. The noise is detectable, but much less when the clutch is pulled in, and I haven't been able to hear when the bike is stopped. It follows RPM (not bike speed) so I nearly certain that it is an engine noise not a chassis/suspension/tire noise. It sounds very much like an exhaust leak, but I can't identify an exhaust leak at all. Is it possible that these pipes cause a different sound farther up the header than the previous Yosh low mounts? Any thoughts?
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Old 10-10-2007, 12:06 PM
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If you haven't already, you may want to remove your exhaust from the cylinders and carefully look it over for any damage.

When I crashed my bike, I had a split in the pipe where the front and rear meet that needed to be welded. I would have never seen it if I had not removed the exhaust and inspected it.

Just a thought.
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Old 10-10-2007, 03:39 PM
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Could also be the CCT's. They sound like a clattering shishing sound at that RPM you described.
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Old 10-10-2007, 04:06 PM
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Bite your tongue! Don't mention CCTs around here! Well this sound is not a clattering sound. I am dealing with a tweaked lower triple right now. Once I get the controls back on, I will start her up and see if I can describe the sound, location, and RPMs a little better.
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Old 10-11-2007, 05:03 PM
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Are you riding the bike naked? Much different sounds come from the bike without bodywork. Might be a normal sound from the headers bouncing up off the front fairing if you do have it on, but not the guages.
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Old 10-13-2007, 06:00 PM
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I think it was the previously unheard sounds of riding her Naked. She certainly moans differently with out her plastics on. That and the pipe making a slightly different thump.
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Old 10-14-2007, 07:30 PM
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After my lowside, I found dirt/rocks in the header pipe when I took it off. I dont know what kind of noise that would have made, but its a thought.
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