New from TFL is the GZR SS carb shaft upgrade kit. This kit will upgrade the stock carb shaft to a stainless steel high flow double notched on the back side for more bottom end punch this way no more breaking your shaft and this will increase the air flow going through the carb which will increase the bottom in punch look at the pictures and see. also most all the parts except the shaft and end screws,throttle arm for it are all OEM walbro parts look around and you will see there is no kit like this on the market.
Please note this kit fits ALL WT style carb. sample yes it fits wt-257,wt-1048,wt-990,wt-771, and all other wt carbs