BMW 4-valve (Franz Pohn)

Source pictures: "Königswelle : Pohn-BMW R100" In: MO Sonderheft No. 3 : BMW Motorräder, 2000 p. 12 - 23











[Classification = Group 6 A] = Ducati-like system (= from the 1cil. production; beveltwins and beltdrive 2 cil. generation desmos) with forked rocker to control two valves but with a single camfollower on the other side.
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