Textron Lycoming O-290-D2 - Page 63

SECTION 5 LYCOMING OPERATOR’S MANUAL
MAINTENANCE PROCEDURES O-235 AND O-290 SERIES
FIRING ORDER 1-3-2-4
Figure 5-1. Ignition Wiring Diagram
FIRING ORDER 1-3-2-4
Figure 5-2. Ignition Wiring Diagram (Optional)
5-2