1981-1984 Honda ATC250R Service Manual
Complete service reference for the legendary Honda ATC250R three-wheeler. Covers engine, transmission, suspension, electrical systems, and complete overhaul procedures.
Honda Models Covered & Key Technical Specifications
Models: Honda ATC250R
Model Years: 1981–1984
Technical Data:
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Engine displacement: 248 cc
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Engine type: Air-cooled 2-stroke single cylinder
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Transmission: 5-speed constant mesh
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Fuel capacity: 8.4 liters (2.2 US gallons)
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Dry weight: 137 kg (302 lb)
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Ignition system: CDI
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Alternator output: 0.073 kW at 7,600 rpm
Honda Manual Features & Content Preview
1981–1984 Honda ATC250R Service Manual Overview
- Covers 1981–1984 Honda ATC250R three-wheeler models (US and Canada variants) with detailed engine and chassis system data
- Official Honda publication (dated July 1981) detailing the complete initial production run and transition specs for '82–'84 models
- Contains 47 technical drawings and exploded-view diagrams illustrating precise engine, transmission, and chassis assembly sequences
- Available as an instant download formatted for standard Letter and A4 printing for immediate workshop access
Contents and Technical Scope
This 256-page workshop reference provides the exact technical specifications and operational requirements needed for the classic 250R. Laid out as a foundational resource for your daily workshop tasks, major chapters detail general maintenance, cylinder head and piston assembly, transmission internals, and the AC generator. The document also includes highly specific reference data on the carburetor fuel system, kickstarter mechanism, and front fork steering geometry. When handling these vintage three-wheelers, always verify your lifting points and ensure the chassis is securely supported before inspecting heavier drivetrain components.
Specification Highlights
Having the right numbers on hand prevents costly mistakes at the workbench. The technical sections deliver precise maintenance data, including critical tightening values for engine and chassis rebuilds. Engine cylinder head torque is strictly specified at 24–29 N·m, while balancer gear torque requires 40–50 N·m. Need to verify the bottom end? Transmission oil capacity is documented at 1.1 liters, and cylinder bore wear limits are defined at 70.050 mm in the inspection data. Ignition timing is set at 17° BTDC at 2,000 rpm. Because this complete reference is an instant download, you can bypass shipping times and pull up these vital OEM specifications on your tablet or print them right in the garage exactly when you need them.
Document Reference: Publication Date: July 1981; 6196103; A27008307DM
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