What is the normal value for ignition timing?

[Millard]

The normal value for ignition timing is between 8 and 10. The adjustment method for ignition timing is as follows: 1. Check the contact gap of the damaged electrical components and adjust if necessary. The normal contact gap is 0.35 to 0.45mm; 2. Manually rotate the engine to position the first cylinder piston at the top dead center of the compression stroke. The method involves removing the spark plug of the first cylinder, blocking the spark plug hole on the cylinder head with a finger, and turning the crankshaft until a feeling of atmospheric pressure is detected, then slowly rotating the crankshaft; 3. Loosen the fixing screw of the clamp plate on the electrical housing, remove the central high-voltage wire from the distributor cap, keeping its end 3 to 4mm away from the cylinder block, turn on the ignition switch, then rotate the disconnected electrical housing in the normal direction of its axis rotation to close the contacts; 4. Secure the electrical housing to the clamp plate with the fixing screw, put on the distributor cap, and replace the spark plug; 5. Ignite in the normal rotation direction, connect the high-voltage wires to the cylinders in the ignition sequence, with the high-voltage wire of the first cylinder inserted into the socket of the ignition side electrode. The adjustment is now complete.