The cable is supposed to have some slack. At least, mine does - from the factory. If it's cycling fine upon first turning on your key, I'd say your servo & controller are AOK. If memory serves me, it seems there's a vacuum component to the equation as well. Guys....help me out here...........but, seems there is a small black box up under the faux tank area, hidden behind the electronics behind the left scoop. It will have a vacuum line running down to the left, front carb. That line should be inspected and in good condition. I believe that vacuum switch controls when V-boost kicks in. (I could be wrong on this)