1991 Subaru Sambar I have a specific problem. When runing cold the idle will be fine but when hot it will stall when it should idle When I adjust the idle screw up to idle fine when hot it runs way to high cold. This is a recent development. Is there a high idle adjustment on these carbs or a vacume line that would create this problem? Does this sound like a "stuck choke" isue? I have the manual but only see the one idle adjustment screw listed, could I need to adjust something else? Sugestions quips quiries and rude remarks welcome. Daniel