TGB Blade 525/500 ATV Service Manual (P/N MR-437)

• Covers the 2007–2010 TGB Blade 500 and 525 ATV models equipped with the 502.56 cc 4-stroke water-cooled engine.
• Official TGB publication form MR-437, revised for the Blade 500/525 line.
• Documents critical maintenance via 18 indexed chapters, featuring 42 exploded-view diagrams and 39 technical specification tables for engine, drivetrain, and chassis components.
• Factory-authorized reference detailing system-level inspection and periodic maintenance protocols.

Technical Content Breakdown

This TGB Blade service manual delivers thorough documentation for workshop diagnostics and routine servicing. It opens with general safety precautions and trouble diagnosis flowcharts mapped out for starting and performance issues. Engine sections define the exact service parameters for the lubrication system, cylinder head, valve train, and piston assemblies.

The drivetrain breakdown includes hard service limit data for the V-type belt driving system, centrifugal clutch, and final drive mechanism. Additional sections detail the cooling system, electrical equipment, fuel-injection mapping, and steering components. Applying these factory tolerances correctly is critical. Always adhere to standard shop safety protocols and rely on this OEM data rather than guesswork to maintain vehicle integrity and prevent rider injury.

Specification and Reference Data

Accurate technical data forms the backbone of any reliable engine rebuild or drivetrain repair. This manual catalogs engine oil capacity at 3700 c.c. following a full disassembly, dropping to 3000 c.c. for standard oil changes. Cylinder compression pressure is specified at 9.2 ± 2 Kg/cm².

Clearance values are clearly defined. Intake valve clearance must be set to 0.10 ± 0.02 mm. Exhaust valve clearance is strictly listed at 0.15 ± 0.02 mm. The reference tables also provide precise torque values for major assemblies. For instance, the engine hanger bolt requires 55 Nm (40 lb-ft), and cylinder head nuts need 2.0–2.2 kgf-m. Using these standardized values ensures your 2007–2010 Blade 500 or 525 build runs exactly as the manufacturer intended throughout its service life.