2007-2010 Suzuki KingQuad 450 LT-A450X Service Manual (P/N 99500-31082-031)

• Original OEM publication (P/N 99500-31082-031), including 2008 and 2009 model-specific supplements and comprehensive wiring diagrams
• Covers 2007–2010 Suzuki KingQuad 450 LT-A450X (XK7, XK8, XK9 variants) across standard, E-17, E-24, E-28, and E-33 specifications
• 528 pages of official factory documentation detailing engine overhaul, fuel injection (FI) system diagnostics, chassis alignment, and cooling system maintenance
• 14 indexed group sections featuring hundreds of exploded-view assembly diagrams and exact component torque tables for the LT-A450X drivetrain

Documentation Walkthrough

This factory service publication delivers the exact technical data needed to maintain and repair the Suzuki LT-A450X series. You get the complete mechanical tear-down and assembly procedures for the liquid-cooled, single-cylinder power plant. This includes detailed specifications for the cylinder head, camshaft, crankshaft, and balancer shafts. The manual dives deep into the automatic V-belt transmission, the L-H-N-R transfer case, and the final gear drive systems. It clearly lays out the exact procedures required for clutch shoe, housing, and movable drive face maintenance.

Beyond the engine, the manual thoroughly documents the fuel injection system. You will find complete diagnostic trees, including instructions for using Suzuki SDS software to identify malfunction codes and sample real-time performance data. Chassis documentation breaks down the suspension, steering geometry (including critical toe and caster settings), and the braking systems—both the front hydraulic discs and the sealed multi-disc rear setup. The electrical section maps the entire wiring harness. It details ignition timing, generator specs, and indicator functions to ensure complete technical coverage for the entire 2007–2010 production run.

Technical Data Preview

Precise mechanical specifications are the backbone of any serious shop reference. For example, valve clearance values are strictly documented at 0.05–0.10 mm for intake and 0.17–0.22 mm for exhaust. When reassembling, the cylinder head cover bolt torque is set exactly at 10 N-m. Fluid capacities are meticulously listed, noting an engine oil capacity of 2.7 liters for a standard filter change, alongside essential reference values like the 1 000 kPa compression pressure specified for standard engine testing.

Safety and accuracy are critical when working on these ATVs. Proper workshop practices and a solid understanding of heavy service work are necessary before applying these specifications, as precision in torque and pressure values is vital for safe operation. Following the factory structure ensures you navigate the extensive technical data tables correctly and maintain the vehicle strictly to OEM standards.