So i got my bike today. Took it home. A few hours later decided to start her up and go riding. The bike would not start with the choke on. Turned the choke off, she started fine with a bit of throttle. Rolled the choke on a bit to let it warm up a bit while i put my gear on and and the bike stalled ?? repeated a few times and even with a bit of choke it kept stalling. Is this normal ??