The damn carb on my astra is actting kinda funnily, when you try and start the car it will idle @ 450!!! its warms up its supposed to idle @ 600-700, when it warms up a little bit sometimes it sits at that but recently is seems to idle @ 450.
then the damn autochoke doesnt even switch on, sometimes it will switch on after driving for 2 mins??
When you first start the car it keeps cutting off, after i leave it to warm for a min or to (with me holding the revs up) when i pull off it pulls slightly comes to a near stop and does this twice more before driving properly.
can someone help me understand how to fix/ clean/ adjust this carb as i think my economy is also being effected as it feels like its lost power??