Is there a differnce in the jetting from a 04 YFZ to a 06 YFZ. Both have a HMF slip on and no air box cover. 800 feet. What should the jetting be. I am at 45 pilot. 2 turns out on the fuel screw. 3 clip on NCVQ needle and a 170 main jet. This is the 04. There is a slight stumble right off idle. Runs good after that. The 06 is using the 42 pilot 3.25 turns out 5 clip on the stock 04 needle (NCVQ needle is on back order) and the 170 main jet. I am wondering if this is what others are running.
Thanks