2005-2008 Yamaha Grizzly 80, YFM80GT ATV Factory Service Manual (P/N LIT-11616-18-47)

• Covers 2005–2008 Yamaha Grizzly 80 and YFM80GT ATVs, specifically targeting the 2D31 model build
• Official Yamaha supplementary publication (P/N LIT-11616-18-47), originally released in August 2004
• Delivers 47 pages of deep-dive service procedures, clear exploded-view diagrams, and complete technical specification tables
• Must be used in conjunction with the base YFM80(D) and YFM80M service documents for complete vehicle maintenance coverage

Manual Organization and Contents

Finding the right information quickly in the shop is critical. This official Yamaha supplementary workshop manual breaks down maintenance and inspection data chapter by chapter for the Grizzly 80, giving you a detailed look at all primary systems. Chapters walk through machine identification, general specifications, periodic maintenance, and engine mechanicals. It also covers chassis adjustments, electrical component testing, and troubleshooting. The document provides clear removal and installation sequences using high-quality illustrations and exploded-view part diagrams. This ensures you understand the exact order of operations before starting any assembly work. Before turning a wrench or testing electrical systems, always ensure you have adequate mechanical experience or consult a certified technician to maintain proper vehicle safety and structural integrity.

Specification and Data Highlights

Accurate tolerances make or break a rebuild. The technical data section delivers comprehensive reference values specifically for the YFM80GT. You will find complete tightening torque values, fluid capacities, and electrical resistance thresholds essential for your workshop tasks. For instance, cylinder head bolt torque is documented at exactly 10 Nm (7.2 ft-lb) for M6 bolts. The final gear case bearing retainer torque specifies 80 Nm (58 ft-lb). Electrical and tuning baselines are also well documented, noting a spark plug gap of 0.6–0.7 mm for the CR7HSA/NGK plug alongside an intake vacuum baseline of 36.0 kPa.