Originally Posted by
martysmartie
The valve is the sole control of idle, so yes it's working! They are known to get 'coked up' and so the operation is not smooth. In your case however I suspect an air leak.
What I meant by new, i.e. has it recently been fitted, so to eliminate this as a source of trouble.
The typical vacuum pipes are at the front by the PCV, there is a 'T' piece as well.
Martin
K&n has just bin fitted so now iv got to check air pipes for a leck and iv just change a thing on the sit of the carb to see if it woz that at all im lost of wot other things cud make it hunt