yup pretty much as Ryk describes, make sure every bolt from the header to the slip on is tight. Make sure the manifolds are tight, if AI removed that the condoms are not cracked etc, make sure (if AI removed) all bolt replacements are tight, check intake to carb boots, make sure they are not cracked, make sure rings are tight etc etc. YOu can also go around with some WD40 and spray (as bike is running) around some of those joints, see if the engine rpm changes noticeably, likley a leak, worst case if nothing, wipe it down and everything will look nice and shiny! :-) good luck