| Year | 1990 |
| Date | 20-Jul |
| Volume | 165 |
| Issue | 3,877 |
| Page | 89 |
| Category | Internal Combustion |
| Part | |
| Title | Motor Cycle Engines |
| Author | Roger Wheeler |
| Notes | Shows some sample model motorcycle engines made by him. Two strokes, side valve four strokes, ignition problems |