i hate the GT-5 kit altogether alot of cheap parts and hardware lame idler that will lock up eventually and the EPA carb is a joke i got fed up with replacing parts on it and bought a black flying horse kit replaced everything but the gas tank and rear sprocket im running the regular NT carb on it and its great the mounts are so strong the hardware hasn't striped on me and my kmc chain is awesome never use the 410 chain that comes with any kit unless you want to be stuck as far as sprockets go i bought a 36 tooth sprocket for my bike and with the skyhawk motor i thought i wasted my money because it didnt have the power with the 44t so i wasnt going to try now that im almost half into breaking in my flying horse im going to give it a shot because this motor has much more power out of the box