brackets are on hand if needed.
The 1940 Kiekhaefer twins were not a refined concepts. The cast aluminum magneto lever had a cam underside to engage the extension of carburetor butterfly shaft so as the spark was advanced or retarded the carburetor butterfly opened or closed. Com;lex, expensive and damage prone. 1941 evolved to a steel magneto handle/steel cam attached to underside of the magnet plate. Simple, inexpensive and durable.
Of the several missing items needed to reconstruct, an authentic, limited production steel tank would have been the most unlikely to turn up. If and when the that should happen, it could be installed with no difficulty. It may even be that some K4 originally had a cast aluminum tank. Adapting a cast aluminum tank involved drilling two holes in the mounting bracket of the aluminum tank to match the mounting holes in crankcase. The two original
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