You are welcome to make one or more. This is very time consuming when when manually made. The worst case to test it when it's outside the carby and dry. Without the lever, I can push the float with my thumb and stick the needle in and there's no chance the needle will fall off by itself unless you knock the primer cap but with the needle lever installed, no matter how hard you push the float before breakage point, the needle will always drops when you release the float. Sometimes real situation can be proven with experimental testing and justification with all possible factors taken into account. Please see attached photo of the tools I used to make it. 0.2mm of brass shim, scissor, side cutter, vernier calliper for measurement and scribing, fishing long nose plier, 2.5mm drill bit for forming with the round grip of the plier at the same time bending the fork. Final trimming of the fork and lever required to practical lenght. To install the lever, install the lever with the needle first. Tilt the lever with needle enough to insert the float hook pivots. All the best.
