So my drz has just under 24k, 12k ago I put in a NGO iridium plug and this is what it looks like. JD jet kit, 160 main, 25 pilot, 3x3, and full yoshi rs3. To me it looks lean and I do get a bit of surging on the highway at times. I cannot remember what the needle is clipped on and really don't want to rip into the carb but I think I might have to. So what do you guys think? Adjust needle or mixture screw. I also live at sea level.