It does it when I turn the fuel on and continues while riding even off the throttle. Is it normal?
:agree:that is the s.e.t. valve moving, and it is on an aftermarket bracket for the pipes. The cables have been removed and a cam installed to fool the pc on the bike. you can simply unplug the plug and remove it all together if you pull the wire from the pc plug. just do a search on disable the s.e.t. valve.