1986-1989 Honda TRX250R Workshop Service Manual 224 Pages

The Honda Service Manual for the 86-89 TRX 250R Fourtrax covers safety notices, maintenance, troubleshooting, and detailed instructions for various components like the engine, cooling system, and transmission. It includes specifications, torque values, and recommended tools for proper servicing using genuine Honda parts.

General Information

•    Model identification and specifications for ’86-’89 TRX 250R.

•    Torque values and tools required for maintenance.

•    Cable and harness routing guidelines.
Safety and Maintenance

•    Important safety notices and warnings.

•    Use genuine HONDA parts and special tools to avoid damage.

•    General maintenance schedule and procedures.
Engine and Transmission

•    Engine specifications and troubleshooting guide.

•    Transmission and crankshaft assembly details.
Cooling and Exhaust Systems

•    Cooling system removal and installation procedures.

•    Exhaust system removal and installation guidelines.
Electrical System

•    Electrical service information and troubleshooting.

•    Ignition system inspection and spark plug maintenance.
Suspension and Steering
•    Front wheel and suspension inspection procedures.

•    Rear suspension inspection and installation.

•    The Honda Service Manual for the 86-89 TRX 250R Fourtrax provides safety notices and warnings about potential injuries and equipment damage if instructions are not followed.

•    The manual is structured into sections, with sections 1 and 2 covering the entire vehicle and sections 3 to 15 focusing on specific parts.

•    Each section includes illustrations, specifications, torque values, tools, and troubleshooting guidance, with detailed procedures following the general instructions.

•    Model identification and specifications for the Fourtrax are provided, including dimensions, weight, and suspension details.

•    The manual emphasizes the use of genuine Honda parts and special tools to avoid damage.

•    Torque values for various engine and chassis components are specified to ensure proper assembly and maintenance.

•    There is a focus on proper cable and harness routing to prevent safety hazards and ensure secure connections.

•    The manual includes troubleshooting guidance for common issues like engine noise, overheating, and poor performance, with probable causes and corrective actions outlined.

The index of the manual covers various sections related to the maintenance and specifications of the vehicle. Key topics include:

•    Torque Values: Specifications for different components like transmission and crankshaft.

•    Cooling System: Guidelines for inspection, coolant replacement, and radiator removal.

•    Electrical System: Includes ignition coil inspection and troubleshooting electrical components.

•    Engine Troubleshooting: Addresses issues like engine overheating, knocking, and poor performance [15-20].

•    Transmission/Crankshaft: Details on installation, removal, and inspection of components [73-79].

•    Brake System: Information on hydraulic disc brakes, including torque values and maintenance [62-63].

•    General Maintenance: Includes periodic replacement parts and lubrication points [112-113].

•    Cable & Harness Routing: Instructions on proper routing to ensure safety and reliability [130-131].

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