Some times kick slips one theet

Hello

I'm the owner of an 1976 Sprint Veloce (VLB1T).

I've just closed the engine after an home made restauration. However, when I hand kick the starter pedal some times (and only some times) I feel the pedal slip one theet.

 

Is it normal????

 

Regards 

mines does it sometime too and i think its caused by the teeth of the kickstart and chrismas tree bit being slightly out of line and the slip lines them up.

Thats normal, some Engines have that too.

thank's