Thanks Grumpy for the hints,I have considered replacing all the fuel lines with ones of known quality (though I don't know of a good brand??),as i did origionally find one hose split where it connected to the fuel pump and of course thought my problem was solved( Of course not). Also the little spring hose clamps are rather flimsy,If these are not tight enough could they be a problem,air wise??. And could I replace them with something else??Also do you think replacing the pump with a quality one (as mowernut suggested above)could be done??and if so with what type of pump??Will check the breather valve straight away.Thanks again Cheers GAC
