finally fell over

Quiksilver

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Bike finally fell over while going to scraping now the. Only damage was a scuff on the nose I didn't notice any other damage. The idle went down a little so I readjusted to where it was before. Now the bike shutters till about 4G and smooths out till about 6k. Not sure where to go been trieng to get this right forever and when I do this happens. Not sure where to go with this bike anymore. If I had the cash I'd send to a sponsor but I dont. Fresh plugs no kinks in fuel filter is maybe a year old and no codes. Any ideas?
 
need more information, Gen1 or Gen2 , secondary controllers, what kind of tuning, has the ecu been flashed? A guess without further information would be stock gear timing maps and the fuel map rich in the cruise area. Just a guess. Need more information on the setup.
 
Sorry normally I provide this information I'm so aggravated with it. 2002 Busa with 16 xxx miles. Pc3 usb no ecu flash stage 1 turbo. Bike was done tuned about 6 months ago ran grrat.
 
couple of things I can think of to check, make sure fuel pressure to the fmu hasn't changed since the tune, and that the map sensor is working correctly (no leaks in vacuum lines), check all vacuum lines for that matter.
 
I poked around at the bike last and low and behold drum rollll.....loose vacuum line. I think I have to come up a tad on the idle, just a bit too much engine breaking for me. Might try 1300rpm it's about 1100 right now.
 
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