This comprehensive workshop manual covers all Ariel motorcycle models produced between 1937 and 1965, providing detailed instructions and technical specifications for maintenance, repair, and overhaul. Whether you own a classic Square Four, a nimble 250cc twin, a robust 500cc or 650cc twin, or a single-cylinder Colt, this manual is an indispensable resource for ensuring your Ariel runs smoothly and reliably.

The manual covers a wide range of topics, including:

* **Twin Cylinder Engines:** Detailed breakdowns of engine components, procedures for rebuilding, troubleshooting, and tuning.
* **Gearbox and Clutch Assemblies:** Step-by-step instructions for dismantling, assembling, and adjusting transmissions and clutches.
* **Carburetters:** Comprehensive information on cleaning, adjusting, and troubleshooting carburettor systems.
* **Wheels, Hubs and Brakes:** Detailed diagrams and instructions for servicing and repairing wheels, hubs, and brakes.
* **Rigid and Spring Frames:** Guidance on maintaining, repairing, and modifying frames.
* **Electrical Equipment:** Clear diagrams and instructions for diagnosing and repairing electrical systems.
* **Appendix:** Useful tables, charts, and additional information.
* **Index:** A comprehensive index for easy navigation.

This manual is your one-stop resource for restoring, maintaining, and repairing your classic Ariel motorcycle.