Can any one help. I just raised my sons handle bars about 5 inches today. I had to add a cable extention and brake line extention. The sleds throttle cable now is tight and it idles too fast. The track is turning on my jack stand. It is a 1999 MXZx 600 with round slide carbs. Is the proper way to get slack in the cable to loosen the cables on the top of the slides.