altezzaclub Posted December 7, 2022 Report Share Posted December 7, 2022 (edited) Ah, no vac advance, I couldn't tell from the movie, it looked like a hose as the camera flashed over it. So that's another possible cause gone. Put the PCV hose back on and see if that makes a difference. Then check the carb tuning. I see you have an overhead linkage between the carb, so if you undo one arm it makes the carbs independent and you can check that each throttle closes cleanly with a 'click' and then do it up again. I assume the rotor turns the way you expect? Clockwise, so the 10deg timing as the points open is ahead of the rotor lobe. That puts the rubbing block where the red line is in this image as the points open, not on the other side of the peak. There is an unlikely chance that the springs & weights are broken, under the points plate. They sit at zero as you set the 10deg by hand, but as soon as you start the engine they fly out to max advance for the timing light. However max advance should be about 40deg, then they hit the stop pin. You could take the points plate out and check underneath that everything is clean, greased and working. Good luck! Edited December 7, 2022 by altezzaclub Quote Link to comment Share on other sites More sharing options...
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