howdee, fiddled with the SX and found that it jumped two teeth on the cambelt. Fixed it, and it is a lot smoother now, but...
give a listen to the vid, two sounds are muffing me.
the "krrrr" in the eccs when I apply juice
the airbox puffs/growls (at least it doesn;t WOOF like it used to)
ideas pending please...
[youtube]http://youtu.be/-5mXMGUim8U[/youtube]