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Message: [QUOTE="Micahdawg, post: 833937, member: 21668"] I popped the plug out last night and it looked dark/black deep into the threads. The electrode and tip where light colored and immediately around the electrode was dark with only a small section showing some brown. Sounds rich to me. I also took out the throttle slide and my needle is set on the 3rd clip position. Guess this weekend I'll pop the carb off and check to see what jets are in there. Does anyone have a clue what size jets I should be using. I'm only about 500 ft over sea level and I ride usually in 60-90 degree weather at each extreme (Fall/Summer). Bike is at standard bore with FMF pipe/silencer and filter but thats it. I'll also be checking the float level. I hear that the bottom of the floats should be roughly parallel to the mating surface (or 16mm) is this right? Thanks for the tips guys. Micah P.S. the bog does not seem to be directly from a standing start. Seems like it will immediatly respond ok but then bogg throughout the midrange and into WOT if I keep the throttle pinned. Only when I let off the throttle momentarily and get back on will it pull good. As it drags down it does not make a popping noise though...but rather a "booooooooggg" like the kill switch is activated and it's cutting spark. This only started happening when I changed from 32:! Yamalube to 40:1 Klotz. Guess the richer fuel mixture is accentuating an already rich jetting issue? [/QUOTE]