I know jetting is covered extensively by you fine people, but I need some more basic help. I can locate the main, pilot, and leak jets. What are the Starter and Pilot Air jets and where do I find them? While you're helping, I just got a '04 WR450, and here's my plan: Exhaust: Already has PMB tip Grey wire: going to cut JD Jetting on the way: Using Red #4 Leak jet: 40 Starter jet: 68 Pilot jet: 48 Pilot Air jet: 100 Main jet: 168 I ride mostly desert (60-95 degrees), elevation: 500-2000 ft. Bike has WR timing, Kouba fuel screw. Please post your thoughts on the above - going the right direction? Just got this bike, riding it Sunday for the first time - can't wait! Thanks!