2009 Yamaha YZ450F(Z) Owner's Service Manual (P/N 33D-28199-80)

Get straight to the details with the official 230-page Yamaha OEM publication (P/N 33D-28199-80) covering the groundbreaking 2010 fuel-injected YZ450F engine launch. Designed for North American, European, and Oceania markets, this document provides the exact mechanical reference values required for workshop maintenance, chassis tuning, and engine teardowns.

Workshop Capabilities and System Overviews

This documentation breaks down complex procedures into eight logical chapters. It covers general information, maintenance specifications, inspection sequences, and major component rebuilds. You will find complete teardown references for the cylinder head, camshafts, and the fuel injection system. Detailed cable and hose routing diagrams ensure exact reassembly after major service tasks, eliminating guesswork on the bench.

Critical Specification Highlights

Rely on factory-correct data to verify machine health. The manual includes comprehensive technical specifications for the 33D-series build:

• Cylinder head bolt torque values detailed in a multi-stage sequence, including the final-stage 150° angle specification.
• Intake valve clearance tolerances strictly listed at 0.10–0.15 mm.
• Fuel system pressure documented at a precise 324 kPa.
• Total coolant capacity confirmed at 1.13 liters.

Working on high-performance competition motorcycles requires strict adherence to mechanical standards. Use these specifications as your primary workshop reference, but always maintain operational safety and consult a certified technician before tackling unfamiliar service operations.