So I put the car up for sale and it starts to play games with me!
Right, it starts fine, 100% normal, first time every time. Then the revs drop and it cuts out! I can keep it going by pulling the choke out but then I get slight pop every so often and once it has settled it is idling a little rough.
Have cleaned the idle jet (well there was nothing to clean as it looked spotless, but 'cleaned' it anyway). Can't hear any hissing or see any split hoses or anything out of the ordinary but the engine is a little shaky.
Any other ideas? Could the plugs be causing this? They're not that old.