Might try to try this,
No sparking
1. Defective spark plug <Adjust gap, or replace>
2. High tension cord short-circuited (grounded) <Repair or replace>
3. Cracked rotor or cap in distributor <Replace>
4. Defective signal generator or ignitor <Replace>
5. Maladjusted signal rotor air gap. <Adjust>
6. Contact not closing positively in main switch, or this switch open-circuited <Replace>
7. Loose or blown fuse <Set right or replace>
8. Improper ignition timing <Adjust>
9. Defective ignition coil. <Replace>
