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Yamaha Grizzly 660 Oil Change Instructions

by Robert Good

A Yamaha Grizzly 660 is an all-terrain vehicle with a 654-cc, four-stroke, liquid-cooled engine. This ATV uses standard Yamaha four-stroke oil and holds three and a half quarts in the crankcase. You will need only a few tools to change the oil and the oil filter on this ATV. The oil filter is on the oil pump at the rear of the crankcase. The drain plug is at the bottom of the crankcase.

Put rubber gloves on your hands. Place a drain pan under the drain nut on the bottom of the crankcase. Remove the drain nut using a ratchet set.

Drain the oil into the drain pan. Replace and tighten the drain nut.

Turn the oil filter to the left to remove it. Place the new filter on the oil pump and turn it to the right until snug. Discard the old filter.

Remove the oil cap from the side of the crankcase. Pour four-stroke oil into the crankcase and replace the oil cap. Start the engine and drive the Grizzly for a minutes or two. Turn off the and and remove the oil cap from the side of the engine and check the oil level. If the oil level is below the full line on the dipstick, then add more oil accordingly.


  • Hot engine oil will cause serious burns. Allow the engine and oil to completely cool before proceeding to avoid burns.

Items you will need


About the Author

Living in Tucson, Ariz., Robert Good has been writing from 2003 on a wide variety of subjects ranging from sports, gardening and cooking to auto repair, home maintenance and travel. Good holds a Bachelor of Science in psychology from the University of the State of New York.

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