Service - 86 XT855 Operator’s Manual p 50 Hour Check Battery Check battery connections for wear or corrosion every 50 hours. Keep connections clean and tight. Batteries supplied by the factory are maintenance free. Service replacement batteries according to manufacturer’s instructions. Change Engine Oil and Filter (Initial) Change engine oil after 50 hours, and every 150 hours thereafter. 1. Remove large cover plate under unit to access drain (3, on side of pan). 2. Drain crankcase while oil is warm. 3. Replace filter (4). 4. Close drain and install cover. 5. Add DEO at fill (1) until oil level is at highest line on dipstick (2). CMW