The Honda TRX70 FOURTRAX Service Repair Manual for the years 1986-1987 is a comprehensive and detailed guide designed to assist owners, mechanics, and enthusiasts in maintaining, servicing, and repairing the Honda TRX70 FOURTRAX all-terrain vehicle. This manual covers a range of topics related to the TRX70's mechanical and electrical systems, providing step-by-step instructions, diagrams, and illustrations.

Key features of the service repair manual may include:

1. **Model Overview:** Detailed information about the Honda TRX70 FOURTRAX, including specifications, features, and technical details.

2. **Maintenance Procedures:** Clear and concise instructions for routine maintenance tasks such as oil changes, filter replacements, brake inspections, and more. Proper maintenance guidelines are essential for prolonging the lifespan of the ATV.

3. **Troubleshooting:** Comprehensive troubleshooting guides to help identify and resolve common issues with the TRX70. This section may include diagnostic flowcharts and tips for efficient problem-solving.

4. **Repair Procedures:** In-depth explanations and instructions for repairing various components of the ATV. This could cover the engine, transmission, suspension, electrical systems, and other critical parts.

5. **Wiring Diagrams:** Detailed electrical wiring diagrams for easy understanding of the ATV's electrical system. This is crucial for diagnosing and fixing electrical issues accurately.

6. **Torque Specifications:** Precise torque values for nuts, bolts, and other fasteners to ensure proper assembly and avoid over-tightening.

7. **Special Tools and Equipment:** Information about any special tools or equipment required for specific repair or maintenance tasks on the TRX70 FOURTRAX.

8. **Safety Information:** Guidelines for safe working practices, including precautions to be taken when working on the ATV. Safety is paramount, and this section helps users perform tasks without risking injury.

9. **Appendix and Index:** Additional resources, reference materials, and an index to facilitate quick navigation and easy access to information within the manual.

Overall, the Honda TRX70 FOURTRAX Service Repair Manual 1986-1987 serves as an invaluable resource for anyone involved in the maintenance and repair of this specific ATV model, offering comprehensive guidance to ensure optimal performance and longevity.