Suzuki outboards: DF90 100 DF115 DF140 from 2001 to 2009 repair manual, Page 178Get this manual

Suzuki outboards: DF90 100 DF115 DF140 from 2001 to 2009 repair manual, Page 178

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POWER UNIT Valve seat contact width Measure valve seat contact width as follows1 Remove all carbon from valve and seat2 Coat valve seat evenly with Prussian blue (or equivalent)3 Install valve into va