no..its the breather overflow.. leave it..
some dent the pipe for some Kehin carbs to fit..
you should also disable the kickstand switch and if you want, the clutch switch too..
I dont know if this was mentioned in this thread but there is an amazing amount of good info on both of these threads in the Thumper section
Ktm 640 LC4 Thread
640 owners thread
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wrk2surf screwed with this post 09-12-2012 at 08:41 PM