The little pipe that goes from the Plenum to the advance bellow on the dizzy had a black and red non return valve fitted inline. One side said "dist" the other "carb".
It was plumbed in the correct way, but what is its purpose??
It only passed air towards the dizzy (ie pressure not vacuum), but i dont understand how it would work, because the non return would lock the advance in position.
Another thing I noticed was that the dizzy seemed to "click" clockwise if I turned the rotor arm, not easily move and spring back like I have known in the past?? Is this normal??
It was plumbed in the correct way, but what is its purpose??
It only passed air towards the dizzy (ie pressure not vacuum), but i dont understand how it would work, because the non return would lock the advance in position.
Another thing I noticed was that the dizzy seemed to "click" clockwise if I turned the rotor arm, not easily move and spring back like I have known in the past?? Is this normal??
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