2001-2014 Honda BF/BFP8D, BF/BFP9.9D Outboards Shop Manual, Page 360Get this manual
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BF80-BF9.90 UPPER CHAMBER HYDRAULIC PRESSURE
PRESSURE GAUGE 5000 PSI 07KPJ-VD6020B or 07KPJ-VD6020A
3) Push the "ON" side of the power tilt switch and compress the piston rod