Honda CT90 TRAIL 1966 K0 USA Schematics

The Honda CT90 Trail is a legendary off-road motorcycle that has been a favorite among enthusiasts for decades. As the original parts catalog, this comprehensive guide provides technical diagrams and exploded views to help you diagnose and repair your machine.

Overview

The CT90 Trail was produced from 1966 to 1975, with the K0 USA model being part of the initial run. This bike is known for its ruggedness, reliability, and ease of maintenance, making it a great candidate for restoration or modification projects.

Schematics

Below you'll find detailed schematics for various components of your CT90 Trail. These diagrams are designed to help you identify the correct spare parts needed for repairs, modifications, or restorations.

Engine

• Cylinder / Cylinder Head: A comprehensive diagram showing the layout and component locations within the cylinder head.
• Crankshaft / Piston: Detailed views of the crankshaft, piston, and connecting rod assemblies.
• Camshaft / Valve: Diagrams illustrating the camshaft, valves, and associated components.

Transmission

• Transmission: A detailed schematic of the transmission assembly, including gears, shafts, and bearings.
• Sub-Transmission / Shift Fork: Exploded views of the sub-transmission components, including the shift fork and related mechanisms.

Electrical

• Points / Advancer: Diagrams showing the points and advancer mechanisms within the ignition system.
• Carburetor: Detailed schematics of the carburetor assembly, including jets, needles, and gaskets.

Chassis

• Frame: A comprehensive diagram illustrating the frame structure, including components such as the subframe, suspension mounts, and engine cradle.
• Front Fork / Front Fender: Detailed views of the front fork, fender, and associated components, including brake calipers and master cylinders.
• Rear Wheel: Diagrams showing the rear wheel assembly, including brakes, bearings, and hubs.

Accessories

• Handlebar: A detailed schematic of the handlebar assembly, including grips, controls, and mounting hardware.
• Air Cleaner / Tool: Diagrams illustrating the air cleaner housing, tool kit components, and mounting hardware.

These schematics are designed to provide a comprehensive guide for diagnosing and repairing your Honda CT90 Trail. By referencing these diagrams, you'll be able to identify the correct spare parts needed for your project, ensuring a smooth and successful restoration or modification process.