1. CKP sensor; 2. ECM; 3. Wave form arrangement circuit; 4. Power source circuit; 5. CPU; 6. TP sensor; 7. ECT sensor; 8. Gear position switch; 9. Engine stop switch; 10. Ignition coil #1; 11. Spark plug #1; 12. Ignition coil #2; 13. Spark plug #2; 14. Side-stand relay; 15. Fuse; 16. Ignition switch; 17. Battery