Okay I have an 05 ES It is snorkled on both ends. I have put a 170 jet in complements of truegrit and the power difference is great. But I still have my origional problem. When I hold full throttle in 3, 4, or 5th I get a poping noise and a sputter . This happens at about 37 MPH. I can't figure this out. I thought maybe that it was going lean, but I installed the larger main jet and set the mixture at 2.5 turns like I was told. I have alot more torque but at speed I get that popping and sputter. It has great throttle response through 1,2,3 and then it wants to cut out and sputter and pop. I was told once that I could have water and dirt in the carb, but I just had the bowl off and it was clean inside. I only have 185 miles on the bike. I am looking for answer that could solve my problems. Thanks in advance for any help.