well heres the scoop ive been working on a kids phazer 2 i cleand the airbox, carbs checked the rings they could be replaced but he doesnt have the money now. it still has prolly 115 in each cylinder so its fine but it wont idle unless the choke is on its running with out the choke on witch is the first in a long time. thats from the carbs being cleaned. but i was wondering what could be casuing this. it is still fairly warm out when we were starting it. i thought maybe bad spark so either coils or coil pack (cdi). any thoughts.