Gijazbo, Just read through your thread again to see all the work that you’ve done. I’m sure you’re a bit frustrated after all that. My 1450 had the same problem when I first got it but I managed to cure it. As I am a bad scientist and change multiple things at once I cannot be sure what the remedy really was but, a few thoughts;
Along the lines of the condenser. For the condenser to work properly it must have a good path to ground. With all that nice new paint, that may be lacking. I like to add an additional battery (B-) cable to the starter to engine block mounting bolt. Helps with starting and in a case with points/condenser with proper condenser operation.
Fuel. The main needle is hollow. I pull a piece of wire from a wire brush and use that to clean out needles in carbs. The wire is hardened and fine enough to clean out the smallest holes. Just curious, does your main needle have one or two holes on the lower end? Mine had one. There is some talk on another site by someone who shall not be named that the single hole needles were an issue that CC/International addressed at some point by upgrading to a two hole needle. You can purchase a new two hole needle. I drilled mine out to 1 mm. I cannot say for sure that that was my issue but.. I no longer have that problem.
Good luck.
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