1999-2005 Yamaha YFM250XL Bear Tracker, Bruin ATV Service Manual (P/N LIT-11616-12-01)

• Official Yamaha publication P/N LIT-11616-12-01
• Complete 439-page factory reference for the 1999–2005 Yamaha YFM250XL Bear Tracker and Bruin ATVs, covering the 4XE-series build (including 4XE1, 4XE2, and 4XE3 regional variants)
• Contains 56 specific tightening-torque tables, 14 electrical circuit diagrams, and 9 troubleshooting flow charts to speed up shop diagnostics

Manual Organization and Content

When a 4XE-series ATV rolls into your bay, having the right factory data cuts diagnostic time in half. This manual provides a detailed technical breakdown of the YFM250XL structure and system diagnostics. It starts with comprehensive general information. You will find VIN locations, critical preparation steps, and the exact special tools required for engine and chassis service.

Moving into the powertrain, a full chapter breaks down the engine overhaul process. It details the removal, disassembly, inspection, and assembly of the cylinder head, pistons, clutches, transmission, and shifter components. Exploded-view diagrams offer clear visual guidance. They cross-reference required maintenance tasks directly to the text, ensuring a smooth workflow and preventing skipped steps.

Specification Highlights

Chapter 2 is packed with detailed technical data tables, providing the critical values necessary to rebuild major systems correctly. Before tackling heavy engine work or electrical troubleshooting, verify the ATV is safely supported on a stable stand and the negative battery terminal is disconnected to prevent accidental engagement or shorts.

Engine specifications document cylinder head warp limits of 0.10 mm (0.004 in) and a standard bore size of 70.97–71.02 mm. Torque specifications for the cylinder head bolts are listed at 22 Nm (16 ft-lb). Electrical reference values include a 14.1–14.9 V regulated charging voltage alongside a 30 A main fuse rating. Factory documentation outlines the precise clearances and capacities needed to maintain these machines. For example, engine oil capacity is specified at 1.5 L for a periodic change, while the final gear case requires exactly 0.25 L of SAE 80 API GL-4 hypoid gear oil.