That resulted in that the valves never closed correctly and compression was lost. After fixing that, the engine once again gave signs of life just after a few kicks.
First it didn't want to rev up, so I thought that the carburetor was giving me troubles as it usually does. I tried to move the ignition trig point from around 17° to 30° before TDC (the same as opening the breaker-points on the original system).
The first of the aforementioned points is marked from factory with an “F”, 17° before TDC, and this is where the pre-ignition is supposed to begin when the motor is standing still. Point number two is the one 30° before TDC, also factory marked, but without text. Maybe that one marks when the spark is supposed to come when the engine is spinning fast?
When giving spark at…