You cannot use the effectively without the correct model number. Look for a metal tag or stamped numbers on the housing. Common Scintilla magneto series include:
Precise timing is critical to prevent engine kickback or poor performance. scintilla magneto manual
Remove the rotor (manual warns: do not hammer the shaft—use a puller engaging the internal threads). Set the rotor aside carefully—the magnets will attract metal debris. You cannot use the effectively without the correct