well I jumped under Willy this arvo and couldn't find a fuel filter anywhere!! there's no muck that I can see in the fuel bowl on the pump. Perhaps I can take the fuel line off the pump and throw the air compressor on it at the petrol tank end and give it a blow, that should clear any blockages that may be? I guess I should get a filter too! thanks for the suggestion gents! Willy is now parked and in pieces and won't be driven for a while so it's a good chance to go right through..