From the Adventure Rider site:
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From my 1970 model :
Inlet: diameter 23,5 mm and 29 mm height
Outlet: diameter 22 mm and 28,2 mm height ( and open for a shorter time)
From my civile 1974:
Inlet: diameter 23,5 mm and 30,2 mm height
Outlet: diameter 23,5 mm and 29,5 mm height
This two ones are not new but in good condition.
I hope it's a help for you
Kater
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