2005 Honda TRX350TM FourTrax 350 Owner's Manual

TRX350TM FourTrax 350 maintenance and repair coverage with complete service schedules, parts locations, and troubleshooting procedures for off-road ATV performance and safety.

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Document Details

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Document Number / Seller:
24999 / Mark Morales
File Size:
5.71 MB
File Type:
PDF
Language:
English
Printable:
Yes
Category:
ATV
Last updated / verified
Mar 21, 2025

Models Covered & Key Technical Specifications

Honda TRX350TM FourTrax 350 — 2005 Precision Engineering Vault | TRX350TM Series Repository.

  • Calibrated Displacement Data: 20.08 cu-in (329.1 cm³) is specified as the engine cylinder volume Architecture.
  • Measured Bore & Stroke: For optimal performance, 3.09 × 2.68 in (78.5 × 68.0 mm) defines the piston geometry Norms.
  • Advanced Compression Ratio: 8.8:1 — establishes the cylinder pressure differential Bounds.
  • Engineered Idle Speed: The throttle control requires 1,400 + 100 rpm for normal warm operation Topology.
  • Prescribed Fuel Capacity: Tank volume reaches 3.67 US gal (13.9 L) including reserve Matrix.
  • Standard Weight Data: Dry vehicle mass is rated at 500 lbs (227 kg) baseline Standards.

Professional Workshop Service Manual & Technical Specifications

Reference-Grade Shop Overhaul Manual: Honda TRX350TM FourTrax 350 - Essential Maintenance & Repair for Off-Road Performance Engine-Compendium

Service-Level: Honda TRX350TM FourTrax 350 (2005) // Specification-Class: Off-Road ATV Powertrain Logic // Service-Level: 200-page comprehensive operations documentation.

Specification System-Path Context
Engine Displacement Power Unit Architecture 329.1 cm³ documented
Brake System Configuration Hydraulic/Mechanical Integration Front and rear specifications included
Transmission Five-Speed Gear Logic Complete ratio documentation

Service procedures are grouped by system function, encompassing engine management and transmission operation, supported by fuel system protocols, electrical component integration, and suspension geometry maintenance. The documentation progresses through brake assembly procedures, drivetrain component servicing, and chassis alignment specifications, concluding with operational guidelines and emergency troubleshooting methods.

Structured Methodology

Safely requiring access to component locations and operational controls, the manual catalogs the instrument displays, switches, levers, and indicator systems distributed across both handlebars and frame-mounted positions. Service intervals are documented for air cleaner elements, spark plug replacements, and valve clearance verification to maintain engine performance consistency. The publication specifies oil capacity measurements, fuel grade recommendations, and lubrication intervals established by the manufacturer's maintenance schedule.

Comprehensive Protocol

Component locations are identified for the fuel valve, choke knob, ignition mechanism, brake assemblies, and electrical distribution points throughout the vehicle structure. Calibration requirements are specified for throttle lever freeplay, brake pedal adjustment ranges, and clutch engagement parameters to establish proper system responsiveness. The manual documents torque specifications for critical fasteners including oil drain plugs, engine crankcase bolts, and wheel retention hardware to ensure proper assembly.

Technical Methodology

Electrical system documentation covers battery maintenance procedures, fuse ratings and replacement locations, headlight and brake light circuits, and accessory socket capacity limitations. The guide includes pre-ride inspection checklists addressing tire pressure verification, fluid level confirmation, control operation testing, and hardware tightness assessment before each use. Gear shifting sequences, brake application techniques, and hill climbing procedures are documented with emphasis on weight distribution and throttle management.

Structured Threshold

Service procedures are documented for oil and filter replacement cycles, air cleaner foam element cleaning and re-oiling, spark arrester carbon purging, and brake fluid level monitoring. The manual provides specifications for tire pressure ranges, tread wear indicators, and replacement tire options approved for front and rear applications. Troubleshooting sections address starting difficulties, engine performance concerns, electrical circuit diagnostics, and mechanical component failure identification.

Systematic Benchmarks

Extensive content covers storage preparation including carburetor draining, engine preservation techniques, battery charging protocols, and vehicle covering methods for extended non-operation periods. Environmental responsibility recommendations address fuel and oil disposal procedures, spark arrester maintenance compliance, and aquatic habitat protection during water crossings. The documentation concludes with identification procedures for frame and engine serial numbers, color code reference information, and technical specification tables for all major systems.

FAQ

What is the **required** fuel capacity for this ATV? keyboard_arrow_down

3.67 US gallons (13.9 liters) including reserve is the full fuel tank capacity specified for the TRX350TM. Reserve capacity is 0.82 US gallons (3.1 liters) for emergency use when the fuel valve is switched to RES position.

Calculate the **specified** engine oil capacity after draining. keyboard_arrow_down

2.1 US quarts (2.0 liters) is the recommended fill amount after draining the old oil. Additional capacity of 2.6 US quarts (2.5 liters) is needed for complete disassembly procedures, as referenced in the technical specifications section.

What values are **essential** for proper spark plug gap adjustment? keyboard_arrow_down

0.03 to 0.04 inches (0.8 to 0.9 millimeters) defines the correct gap measurement for both NGK and DENSO spark plugs. This specification appears on page 124 and must be verified using a wire-type feeler gauge before installation to ensure proper engine operation.

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Reviews (5)

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As a novice, I found this manual easy to understand and very informative. The download process was seamless too!
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I appreciated how straightforward the download was. The manual provides all the necessary information for safe riding!
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This manual is incredibly helpful! It covers everything from safety to maintenance in great detail. Highly recommend it!
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This manual has saved me a lot of trouble with my ATV. The support team was also quick to respond to my queries!