1977-1982 Honda CT90 / CT110 Shop Manual

Honda CT90 and CT110 Service Documentation

• Covers 1977–1982 Honda CT90 and CT110 motorcycles, documenting technical specifications for the Trail 90 and CT110 variants
• Official Honda publication P/N 6110205, dated March 1982
• Contains 199 pages of mechanical data, exploded-view diagrams, and maintenance procedures
• File link appears in your order confirmation straight away
• OCR text layer lets you jump to a torque spec by keyword
• Suitable for printing individual sections for shop-floor use
• This 1982 edition serves as the definitive reference for the full 1977–1982 model run, including the emission-control updates for later production cycles

Technical Scope and Data

The 1977–1982 Honda CT90 and CT110 shop manual provides technical documentation for the service and maintenance of these dual-range motorcycles. Detailed chapters provide insights into engine removal, cylinder head and valve assembly, lubrication system architecture, and transmission gear timing for both the main and auxiliary gearboxes. The manual includes comprehensive electrical wiring diagrams, troubleshooting flow charts for common engine performance issues, and standardized maintenance intervals for both K8 and K9 model production cycles.

Specification Highlights

This Honda CT90 and CT110 service manual provides technical references for drivetrain and chassis tuning, including torque values, fluid capacities, and wear limits. Cylinder head bolt torque is documented at 2.0–2.5 kg-m (14.5–18.1 lbs-ft) in the specification table. Cam chain tensioner bolt torque is listed at 15 N·m (11.1 lbs-ft) in the torque data section. Exhaust valve clearance for the 89.5 cc engine is specified at 0.05 mm (0.002 in.) in the valve train maintenance data. Reference how factory workshop documentation is structured to assist in component identification. Note: This page is a contents overview for the manual; it does not provide repair or diagnostic instructions. An official 199-page Honda OEM shop manual covering the 1977–1982 CT90 and CT110, documenting engine, chassis, electrical, and transmission specifications for these classic dual-sport motorcycles.