1993-2000 Honda 300EX Service Manual (P/N 17374)

• Covers 1993–2000 Honda 300EX and TRX300EX sport ATVs, providing exact technical specifications and service procedures for the air-cooled 281.7 cc single-cylinder engine and 5-speed transmission.
• Official Honda factory publication (Form #17374) delivering OEM-standard precision.
• Features 121 exploded-view illustrations, 25 torque-specification tables, and 18 system-specific troubleshooting diagnostic lists.
• The factory-authorized resource for maintaining the TRX300EX model line, detailing engine, chassis, and electrical maintenance intervals for the lifetime of the vehicle.

Component and System Documentation

This 1993–2000 Honda 300EX service manual encompasses the mechanical and electrical architecture of the ATV. It extensively documents engine removal, cylinder head assembly, clutch operation, and frame-mounted body panels. Chapters progress logically through standard maintenance schedules, lubrication system diagrams, and fuel system tuning for high-performance off-road applications.

By outlining standardized assembly routines for the primary drive gear, gearshift linkage, and ignition systems, this documentation directly eliminates guesswork on the bench. It saves hours of diagnostic time in the workshop while supporting long-term operational integrity. You gain access to comprehensive parts diagrams, service data, and precise removal or installation procedures. Before turning a wrench or tearing into the engine block, always review the specific handling and safety precautions detailed inside to prevent component damage and ensure a safe working environment.

Technical Specification Highlights

Factory data provides precise engine top-end clearances, torque-to-yield specs, and drivetrain wear limits to ensure your rebuild meets exact OEM tolerances.

• Cylinder head warpage limit: 0.10 mm
• Valve clearance (intake and exhaust): 0.10 ± 0.02 mm
• Fuel tank capacity: 8.5 liters
• Starter motor brush wear limit: 9.0 mm