Yamaha MTN850-AH Owner's Manual

Contents

Periodic maintenance and adjustment8-12123456789101112EAU1990CEngine oil and oil filtercartridgeThe engine oil level should be checkedbefore each ride. In addition, the oilmust be changed and the oil filter car-tridge replaced at the intervals speci-fied in the periodic maintenance andlubrication chart.To check the engine oil level1. Place the vehicle on a level sur-face and hold it in an upright posi-tion. A slight tilt to the side canresult in a false reading.2. Start the engine, warm it up forseveral minutes, and then turn itoff.3. Wait a few minutes until the oil set-tles, and then check the oil levelthrough the check window locatedat the bottom-right side of thecrankcase.TIPThe engine oil should be between theminimum and maximum level marks.4. If the engine oil is below the mini-mum level mark, add sufficient oilof the recommended type to raiseit to the correct level.TIPCheck the O-ring for damage, and re-place it if necessary.To change the engine oil (with orwithout oil filter cartridge replace-ment)1. Place the vehicle on a level sur-face.2. Start the engine, warm it up forseveral minutes, and then turn itoff.3. Place an oil pan under the engineto collect the used oil.4. Remove the engine oil filler cap,the engine oil drain bolt and itsgasket to drain the oil from thecrankcase.1. Engine oil filler cap2. Engine oil level check window3. Maximum level mark4. Minimum level mark1 2341. Engine oil filler cap2. O-ring21