I have a 67’ ciao and I can’t figure out why the bike stalls out every time I come to a stop and the breaks are applied. If the bike is on the kickstand it will idle fine but back wheel continues to spin. Is the back wheel suppose to disengage? Same thing happens on the kickstand when breaks are applied the bike just dies. Another thing is when the bike is just starting it needs to be pedaled really fast to get going but once up to speed it will accelerate great on its own. After a stall out however I have to pedal really fast until the bike is up to speed again. Any ideas people???