I've got an idea! Due to my recent PTA time with jetting, how about creating a sticky thread with jetting info? Basically something like: Bike:XR650L/R Year:19XX Location: XX Elevation:XXX' Carb Type:Mikuni/Edelbrock/FCR/Stock Carb Settings:XX Main Jet, XX Pilot Jet, XX Needle at Clip Position X, Air/Fuel Screw @ X turns out. Exhaust Type: Air Filter Type: Are you happy with this setup: Yes/No - Why? I'll start with my settings but my carb runs like crap so my info won't be very helpful. C'mon guys, lets create a great big jetting database! Bike:XR650L Year:1997 Location: N. California Elevation:100' Carb Type:Mikuni Pumper Carb Settings:150 Main Jet, 20 Pilot Jet, 01-97 Needle at Clip Position 3, Air/Fuel Screw @ 1.5 turns out. Exhaust Type:FMF Q2 w/powerbomb header Air Filter Type:Uni Pod Filter, airbox removed Are you happy with this setup: No - Flat sputtering midrange, starts well, WOT is good.