I am in the dark when it comes to jetting. I just want to get that out there. I was told to put smaller jets in my atv because it is choking out at about 6500 feet (My house 2000' run perfict). I never use the choke because it starts right up. I was told that it might be to rich ( hint not having to use choke)and that i should be able to run it at home and 6500 Feet if i put smaller jets in. Does anyone have any suggestions? Any Info helps.