2005-2006 Yamaha Bruin 250 / Big Bear 250, YFM250BT ATV Service Manual

2005-2006 Yamaha YFM250BT Service Documentation

• Covers the 2005–2006 Yamaha YFM250BT ATV, documenting engine, chassis, and electrical specifications across USA, California, and Canadian configurations
• Official Yamaha publication LIT-11616-18-41, first edition July 2004
• Contains 12 detailed wiring schematics and 34 indexed exploded-view diagrams
• 600 pages of technical reference including lubrication diagrams and torque specifications
• Delivered as a direct download the moment payment clears
• Indexed PDF search covers every chapter and appendix
• Re-download the file any time, no expiration
• This 2004 first edition serves as the essential technical reference for the YFM250BT, documenting critical changes from the earlier YFM250XL and YFM250XN iterations

Technical Content Walkthrough

This factory-authorized manual provides comprehensive documentation for the maintenance and overhaul of the 2005–2006 Yamaha YFM250BT. The contents are organized into nine chapters covering general information, detailed technical specifications, periodic inspection procedures, and complete engine disassembly. The section on periodic maintenance outlines service schedules for valves, spark plugs, air filters, and drive systems, while the chassis section provides instructions for rear brake adjustment and steering system inspections. The manual further includes a section on carburetion with specific jetting data and component assembly references.

Specification Highlights

The 2005–2006 Yamaha YFM250BT technical specifications include engine idle speed set at 1,400–1,500 r/min. Intake vacuum is documented at 30.7 kPa in the engine data tables. The fuel tank capacity for the 2005–2006 Yamaha YFM250BT is specified at 12 liters. Bolt torque for the cylinder head is listed at 22 Nm in the general maintenance section. This document provides standardized data for mechanics and owners to ensure accurate vehicle maintenance and parts identification, covering the full 2005–2006 YFM250BT product range. All service data shown here is for reference only — qualified technicians and the original OEM documentation remain the authoritative source for any hands-on work.