For setting the diaphragm needle on two cycle and some four cycle diaphragm carbs. New style on page 31 of this manual. https://www.miniplane-usa.com/pdf/WalbroServiceManual.pdf
Or google search this, 2 cycle carburetor needle adjustment tool
Although I do have both W tools and the Z tool. And the 500-13-1 on page 31 is the older W tool on the upper left in the following image. The newer W tool on upper right is PN 500-528-1.
Hopefully you don't give up that easily on a tough repair job. Think about their shape.
Try straightening out someone else screw-up on a Cub Car golf cart. Cut wires all around the solenoid and he threw away the connectors plus he screw up two new solenoid by try to 5/16-24 nuts in place of 5/16-18 nuts. I am know that I will be getting a diagram Monday. I having to drive to the dealer as the tech don't to send the diagram via email. All he has to do is to scan the paper sheet into his computer and then attach it to an email.
How this for throwing stars. Even has a belt clip so it is always handy. It is what threw in the roadside trash pile just the .22 rifle I had found. Boy glad I found them before some kid did. They could have killed someone just playing with these.
Blades lock in the out position,