73 Scamp hesitation off idle sometimes dies.

It has the factory 1 barrel on it and if I try to give it more than 1/4 pedal it stumbles and dies.

Any ideas what to look for or change?

thanks

Is this only on start up? Is choke engaged ?

Once up to speed how does it run?

Is this new problem? What have you done between when it ran better and now?

Was it stored for winter? If so, how long did it sit?

Have you adjusted carb settings?