Hello RedRyder and Rodnoc,
Many thanks for your replies and help, I finally plugged an old Pegasus CDI module from a severly crashed plane and it turns well but needs much more tunings.
I've never seen before an engine with a so sensitive carb needle , it is a bit loose in the threads of the carb so the engine is flooded when the needle is open more than 1/10 of a turn from the closed position.
Is it the same thing for yours H&M's?
Also have you a source to buy another Hall sensor mounted on a little green board? I've been unable to find another one on the net, have no spare and very afraid to fry this one!
Many thanks, Chris.
Below, the not-very-academic system to test run the engine!