I had a hell of a time jetting my carb. You will probably have a chuckle once you find out why it wasn't working for me and what the eventual fix was. As for me, I'm glad the frustration is over. I was so frustrated with my stage 1 mod and carb jetting problems that I decided to just put the bike back to stock. I was in the process of putting in the original jets and needle when I thought to myself, why doesn't this needle fit properly in the plastic nylon retaining piece. It seemed as though the needle wouldn't go in all the way. I went to the dealer to see if I could get a replacement part. When talking to the service guys he told me I was installing the needle wrong. The order is needle into the slide then plastic retaining part then the spring. I was trying to insert the needle into the hole through the plastic retaining part not below it. They embarrassed and relieved at the same time I had been at this for a couple of weeks explaining to everyone that the bike was running rich even with a 38 pilot and a 170 main jet. Well no duh, I had the needle effectively shimmed up by about oh 1/2 an inch. I was basically trying to tune the idle from the main jet. I was tempted not to post this out of suffering public embarrassment but I thought my mistake would benefit others. Plus a little humiliation is good now and then to keep the ego in check. I rode the bike approximately 700 miles this weekend to Lassen National Park at elevations from sea level to 8,500 ft and temperatures ranging from 40 to 95 with no problems. I'm running a 45 pilot 180 main and a N65C needle. Eventually, I'll fine tune the carb trying the plug chop method then the dyno but as for now I'm just happy to ride again.