1986-1987 Honda Fourtrax TRX70 Service Manual

Honda TRX70 Fourtrax 1986–1987 Technical Coverage

• Covers 1986–1987 Honda Fourtrax TRX70 ATV models, documenting internal mechanical systems and chassis components
• Official Honda factory service publication, first edition, 158 pages
• Contains 17 sections including lubrication, engine removal, fuel system, cylinder head/valves, and transmission/crankshaft specifications
• Indexed PDF search covers every chapter and appendix
• Accessible from your device as soon as the order is placed
• Laid out for standard letter and A4 printing
• This 1986–1987 Honda TRX70 service manual provides the factory-authorized parameters for engine rebuilds and chassis maintenance requirements

Component and System Documentation

The 1986–1987 Honda Fourtrax TRX70 service manual provides detailed data across 17 distinct sections. Major content blocks include engine lubrication, fuel system overhaul, cylinder head and valve train specs, and internal transmission components. This publication details the specific assembly sequences for the 4-speed semi-automatic transmission and the overhead camshaft chain-driven engine configuration.

Specification Highlights

Engine performance data for the 1986–1987 Honda Fourtrax TRX70 is defined by the 72 cc displacement and 3.75 BHP output at 7,000 rpm. Cylinder compression standard is 1,200 ± 150 kPa. Valve clearance for both intake and exhaust is 0.05 mm. Standard drive chain slack is listed as 10–20 mm. The fuel system utilizes a PB86A carburetor, with specific pilot screw turn-out settings for the 1986 and post-1986 variants. This 158-page original factory workshop manual provides the complete technical specifications, torque settings, and adjustment parameters required for professional-grade maintenance of the 1986–1987 Honda Fourtrax TRX70 ATV.