Transcriber’s Note

Larger versions of most illustrations may be seen by right-clicking themand selecting an option to view them separately, or by double-tapping and/orstretching them.

Additional notes will be found near the end of this ebook.

The source book did not have a Table of Contents. The one below was created for reader convenience.

INTRODUCTION
THE FOUR-STROKE CYCLE.
THE CYLINDER
VALVES
THE PISTON
THE CRANK SHAFT
THE CONNECTING ROD
THE CRANK CASE
THE CARBURETOR
THE IGNITION SYSTEM
THE COOLING SYSTEM
THE TWO-CYCLE MOTOR.
INDEX