Ignition Timing
| Spark Control Computer | 5213691 | 5213832 | 5213834 | 5213840 |
| Basic Timing | 6 Degrees Before Top Dead Center (deg BTDC) | 6 Degrees Before Top Dead Center (deg BTDC) | 6 Degrees Before Top Dead Center (deg BTDC) | 6 Degrees Before Top Dead Center (deg BTDC) |