I have a 2000.0 CCDS, gas. The carb choke button always needs to be depressed every time I start the cart... and every start I have to perform this procedure. I have checked the air box hose and see no leaks, does the mixture screw need adjusting? and how much? and which one is it? ? Also, is the engine supposed to cut out every time i perform a shift... so that I'm having to restart with the choke button depressed every time I change the gear? Thanx Hittman2.