1999-2002 Honda TRX400EX Service Manual

Honda TRX400EX Service Manual covers procedures for engine removal, fuel system, and suspension. PN 07965-VM00100.

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Document Details

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Document Number / Seller:
24315 / Sandra White
File Size:
107.55 MB
File Type:
PDF
Language:
English
Printable:
Yes
Category:
ATV
Last updated / verified
Jun 14, 2025

Models Covered & Key Technical Specifications

Honda TRX400EX — 1999–2002 (07965-VM00100) Operational Primer Vault | TRX400EX Series Dossier.

  • Approved End Play: 397 cm³ (24.2 cu-in) is measured at the single-cylinder displacement Architecture.
  • Baseline Power Framework: For optimal performance, 147 W at 5,000 rpm maintains the alternator charging capacity Topology.
  • Verified Ambient Limits: The compression ratio produces 9.1:1 and represents the cylinder head pressure Matrix.
  • Designated Torque Data: Fuel tank volume requires 10 liters (2.6 US gal, 2.2 Imp gal) for the complete fuel system Standards.
  • Certified Measurement Bounds: The engine oil capacity delivers 1.85 liters (1.95 US qt, 1.63 Imp qt) at filter change Margin.
  • Reference Dimensional Limits: Battery specification limits 12V - 8Ah (nominal 96 Wh) as the electrical energy storage Protocol.

Professional Workshop Service Manual & Technical Specifications

Applied Calibration Field Manual: Honda TRX400EX Service Manual Maintenance-Registry

Procedure-Type: Service Manual // Component-Focus: Engine, Fuel System, Suspension, Electrical Systems, Transmission, Brakes, Wheels, Steering // Procedure-Type: Workshop Manual Specification Baseline Context
Tire Tread Depth 4.0 mm (0.16 in) Standard Minimum Tread
Cold Tire Pressure 27 kPa (4.0 psi) Standard Tire Pressure
Idle Speed 1,400 ± 100 rpm Engine Idle Speed
Valve Clearance (Intake) 0.10 mm (0.004 in) Valve Clearance Specification
Valve Clearance (Exhaust) 0.12 mm (0.005 in) Valve Clearance Specification
Engine Oil Capacity (After Draining) 1.8 liters Engine Oil Capacity

Technical chapters are organized around systems, procedures, and introductions. Sections cover detailed component information, maintenance schedules, and troubleshooting guides. The document includes a comprehensive overview table of specifications and performance parameters. Key system information is presented, followed by specific procedures for maintenance and repair, an introductory overview, a detailed specifications table, and essential troubleshooting steps to ensure proper vehicle operation and longevity.

Installation guidelines are provided for all major component assemblies including the engine, suspension, and fuel system, ensuring correct fitment and function.

Maintenance guidelines are included for routine servicing, covering areas such as fluid changes, filter replacements, and lubrication to maximize performance and lifespan.

OEM guidelines are included for factory-standard procedures, ensuring that all repairs and adjustments meet manufacturer specifications for optimal safety and reliability.

Transmission service information covers disassembly, inspection, and assembly of internal components for smooth gear shifting and durability.

HVAC system procedures are included for the cooling system and related components, ensuring efficient thermal management.

This manual documents torque specifications for critical fasteners to ensure proper assembly and prevent corrosion joint prevention.

FAQ

What procedures are **necessary** for electrical system diagnostics? keyboard_arrow_down

12V - 8Ah is the standard battery specification for electrical energy storage.

Determine the **recommended** calibration settings for engine performance. keyboard_arrow_down

147 W at 5,000 rpm maintains the alternator charging capacity for optimal performance.

What specifications are required for **calibrated** clearance measurements? keyboard_arrow_down

0.10 mm (0.004 in) is the service limit for cylinder-to-piston clearance.

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Reviews (3)

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This manual is detailed and covers everything you need for your TRX400EX. I had no issues with downloading it, and the support team was very responsive when I needed assistance. A solid investment for keeping my ATV in top shape!
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I found this manual incredibly helpful for my ATV repairs. The step-by-step instructions made everything easier to understand. The email support was quick and professional when I had a question about the download. Very satisfied!
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New
This service manual is a must-have for any TRX400EX owner. The diagrams are clear, and the troubleshooting tips saved me a lot of time. The download process was smooth, and I received the link almost instantly! Highly recommend!