Sorry John.... I removed the picture because I did not want this to become an issue between competitors..... as that reduction I was showing is the product of a branch of Swiss Motor Engineering - "Aero Swiss Engine"
No problem, please remember we are not in Competition to anyone. We are not a dealer for this engine and our pure interest is to be a happy customer (of Weber) with a top preforming engine. We like to be helpful and this is why mentioning things to the forum readers, based on how to avoid costly drawbacks and disappointments.