[donald]

Good morning gentlemen and many thanks to those of you who commented. As usual we have two “ experts “ diametrically opposed. What’s new? I have to make up my own mind.
More interesting than petrol/oil ratios is the following:- Having totally striped the engine and rebuilt it, to make sure I wasn’t loosing crankcase pressure, I RESET EVERYTHING and pulled the string. Nothing, not even a cough. I had fitted a brand new spark plug which came with the “ bits “ I had bought, an NGK AB-6. I don’t know why but I remembered I had an old plug, it turned out to be a Lodge H1. Probably 1930s or even 20s.I took it to bits, cleaned it, fitted it and hey presto, COMBUSTION, I purchased a new plug, a D14-GS Champion and the engine is running fine.

Any more “ expert “ thoughts? Thanks Donald.

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