Hi The bike is a 2000 model GPX250 and its been a little cold in the mornings recently so thought id use the choke so bike doesn't cut out while gearing up but it doesn't work. Tried seeting it before the motor is started, with and without a throttle flick and after the motor is started. Checked the cable, it is moving something in between the carbs. The funny thing is that it was working last winter. Any help appreciated.