Hello:
Some friends have the ZDzs 60 and 80, they choke easyly with the engine standar carburetor choke.
I have a ZDZ 40 and it does not choke at all. To get fuel up to the cilynder I have to use a starter for longer than deired time until gas drop out of the muffler and then the engine starts.
The following times the engine strat by hand at the first flip.
I guess the choke butterfly comes with a small hole where the system lose pressure and then the engine do not suck fuel from the tank.
Have somebody experienced similar situations with the ZDZ 40cc.
I dissambled the entire carb and everything was in good shape and almost brand new ( as the engine)
Any inputs will be interesting.

thanks

R.