Suzuki outboards: DF90 100 DF115 DF140 from 2001 to 2009 repair manual, Page 353Get this manual
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DF140 "K2" ('02) MODEL
GEAR OIL Fill the gearcase with specified gear oil for initial testing and recheck the level after 10 minutesTop up if necessary
99000-22540: Suzuki Outboard