2009-2010 Suzuki DF70A DF80A DF90A Outboard Service Manual, Page 273Get this manual

2009-2010 Suzuki DF70A DF80A DF90A Outboard Service Manual, Page 273

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Power Trim and Tilt:
Thermal Valve As temperature goes up, oil pressure will increase and the oil in PTT unit will expandHigh oil pressure in the upper cylinder chamber (1) caused by rising temp