What? heck no! there is good info in these pages and some bad I guess.The cns carb has a pilot jet,needle/slide,and the main jet then there is a air/fuel adjust screw.leave the needle in the middle.Start with the air screw turned 2 turns out from closed,and set the idle first.Then the transition from idle to needle can be fine tuned with the needle,and then the main jet.Obviously there is more to it than that being able to fine tune it between pilot,needle and main is trial and error to find what works best but worth it in the end when your throttle responce is better and it performs properly.