i juast got a new dirt bug yesterday and i really like it its my first dirt bike. i khow its **** compared to others but its good for me so dnt tell me it sucks ass because i khow. but i have a problom keeping it running. i think it might be the cold weather. it was like 25 yesterday and unless i kept the choke in beetween on and off it would shut off. and if i stoped riding for a few seconds it turned off? do i got to keep the choke on or off? and is the cold affecting it or the way im doing the choke?.