Yamaha Razz that runs on choke but dies when you stop if its off choke?

If your Yamaha Razz runs only on choke but dies when the choke is off, it likely indicates a problem with the fuel mixture or the carburetor. When the choke is engaged, it enriches the fuel-air mix, compensating for a lean condition caused by issues such as clogged jets, dirty air filters, or vacuum leaks. Cleaning the carburetor and ensuring proper air and fuel flow should help resolve the issue. Additionally, checking for any blockages in the fuel line can also be beneficial.