1987-1997 Yamaha Big Bear 350 4x4 service manual, Page 27Get this manual
6Clean: Oil strainer Clean it with solvent7Inspect: .O-ring Damage -)- Replace8Tighten: Drain plug (Crankcase) Drain plug (Transfer gear case)
6Clean: Oil strainer Clean it with solvent7Inspect: .O-ring Damage -)- Replace8Tighten: Drain plug (Crankcase) Drain plug (Transfer gear case)