| Year | 1911 |
| Date | 26-Oct |
| Volume | 25 |
| Issue | 548 |
| Page | 405 |
| Category | Automotive |
| Part | |
| Title | Motor Cycle Notes |
| Author | "Phoenix" |
| Notes | Weak Valve Springs. An Example from recent Practice. Improving a Lightweight. Unequal Firing in a Twin-Cylinder Engine. A Probable Cause and Remedy. Replies in Brief |