To try and eliminate the questions when using the ( Toy 250 carb) for the throttle bracket and fuel inlet mods that needs to be fabricated for this swap. Decided to post a few pics on how I chose to address these obstacles. You are on your own with the air cleaner
Important:
Always try and use the parts that come with the carbs and modify them. This keeps things much easier and grafting one carb part to the other works well. There is no throttle return spring needed.
Click on pic to enlarge