2006-2012 Honda TRX90 / TRX90EX / TRX90X Service Manual

Honda TRX90, TRX90EX, and TRX90X Technical Overview

• Covers 2006–2012 Honda TRX90, TRX90EX, and TRX90X off-road ATVs, documenting maintenance and system components
• Official Honda publication P/N 61HNP06
• Contains detailed exploded-view diagrams, torque specifications, and system-level wiring schematics
• Delivered as a direct download the moment payment clears
• Indexed PDF search covers every chapter and appendix
• Laid out for standard letter and A4 printing
• This 2006–2012 manual serves as the primary reference for the Honda TRX90 model series maintenance and engine-removal procedures

Mechanical and System Documentation

This Honda TRX90, TRX90EX, and TRX90X service publication provides technical data for the 85.8 cm³ engine and its four-speed semi-automatic transmission. The document structures maintenance requirements including oil change intervals, drive chain adjustment, and valve clearance checks. It contains sections dedicated to the cylinder head, fuel system, lubrication system, and electrical components. Detailed illustrations guide the identification of parts and assembly sequences for the chassis, steering, and braking systems.

Specification and Reference Data

Technical content includes cylinder compression pressure of 1,226 kPa (178 psi) and standard spark plug gaps of 0.60–0.70 mm. Engine oil drainage volume is documented at 0.7 liters. Torque values for chassis components such as the axle bearing holder bolt are listed at 88 N·m, while standard fastener torque specifications are provided for 5 mm through 12 mm bolts. Reference material for emission control systems and secondary air supply system inspection is included for U.S.A. type units. An official 298-page Honda OEM service manual covering the 2006–2012 TRX90, TRX90EX, and TRX90X, documenting engine, chassis, electrical, and fuel-injection specifications for the 61HNP06-series build.

Document Reference: Publication 61HNP06