1986-1989 Honda TRX 250R Fourtrax Service Manual

Technical Scope and Specifications for the 1986–1989 Honda TRX 250R

• Covers 1986–1989 Honda TRX 250R Fourtrax all-terrain vehicles with liquid-cooled 2-stroke engines
• Official Honda publication dated September 1988
• Contains 47 exploded-view diagrams and 35 torque-specification tables for engine and chassis systems
• Downloads to your account within seconds of checkout
• Your order stays downloadable from your account for life
• Indexed PDF search covers every chapter and appendix
• Full-text search finds any part number in seconds
• Suitable for printing individual sections for shop-floor use
• This 1988 edition provides the factory-authorized service reference for the 1986–1989 Honda TRX 250R production run

Comprehensive Technical Documentation

The 1986–1989 Honda TRX 250R service manual offers detailed coverage across seventeen technical sections. The document provides clear organizational structures for engine removal, installation, and complete component-level breakdown of the transmission, balancer, and crankshaft systems. Technicians and owners will find extensive information regarding fuel system tuning, including jet needle settings and carburetor theory for varying altitudes and temperature conditions. Beyond the power plant, the publication documents the Pro-Link rear suspension, hydraulic disc braking systems, and steering geometry requirements.

Specification Highlights

Technical data is provided through high-precision charts covering tolerance, wear limits, and mechanical clearances. Cylinder head bolt torque is specified at 24–29 N·m (17–21 ft·lb) in the assembly data. Spark plug gap for the 1986–1989 Honda TRX 250R is documented at 0.7–0.8 mm (0.028–0.031 in). Front tire pressure is officially set to 4.0 psi (27.5 kPa). Reference how factory workshop documentation is structured to understand the technical depth provided in this 224-page factory reference guide.

All service data shown here is for reference only — qualified technicians and the original OEM documentation remain the authoritative source for any hands-on work. An official 224-page Honda OEM workshop manual covering the 1986–1989 Honda TRX 250R, documenting engine, chassis, electrical, and fuel-system specifications for the production run.