I have also taken on this job but removed the entire inlet manifold and attempted to clean it as good as possible. Also found a lot of goo coming from the concertina like pipe on the righthand side of the head. Actually i think it was blocked to a large extend. Managed to get it to tricle a bit of fluid though in the end. This channel runs on the underside of the manifold and ends up just after the throttle inside the manifold. Since then idling jumped up to about two everytime I start and stays there. Set it a bit lower but still goes high and eventually drop to one.
Since then I have blocked off the concertina pipe but still have a bit eratic idling and running high (assume this to be auto choke). Have not touched the MAF box yet but cleaned sensor with carb cleaner.
Post some pics tomorrow.
