I have a 1986 ezgo cart. I have a new carb,new selonoid,new volt regulator, rebuilt fuel pump,new fuel filter, and new gas lines. I have cleaned the fuel tank and checked the fuel pickup fitting and tube for leaks. I have also checked the fuel tank cap for proper venting. My problem is, when I ride on rough terrain (like gravel) the cart will begin to sputter and then die. Ater sitting for less than a minute, it will take off again for a short distance then die again. If im on smoother terrain like grass or pavement it runs fine. does anyone have any suggestions on what my problem may be.