Question about Mtd Yard - Man 160cc, 21" Self - Propelled Lawn Mower

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How to change oil and where i put the oil in to the lawn mower mtd 3.5hp / 20

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Warm up the engine so the oil will flow out. Push the handle to the ground and either have someone stand on it or wedge it underneath something to hold it down. Disconnect spark plug!! Remove blade. Place a drain pan underneath mower (one that's shallow enough to lower the mower down on) and using a 3/8 extension on a ratchet, stick the square end of the extension in the drain plug in the bottom of the engine and unscrew. Lower mower back down for a couple of minutes then reverse proceedure. I think it holds about 20 oz. of oil. Put in 18 oz. and check it. Be sure not to overfill.

Posted on Jun 03, 2009

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