Hi Kurtis
Sorry for the lateness of my reply, as its our busy time at the moment pruning the apple trees through Somerset!
The engine dates from 1947 – 1953, you are correct a 350 cc. This engine unit was a side valve Atco/JAP four stroke with cooling fan cowl.
The carb should be an Amal, single lever control, fitted with air strangler.
Magneto should be a Wico series A
The starter should be by your foot, on to a lever, which should be attached to the clutch.
Hope this helps.
Photos from The Hall & Duck Trust Library
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