Suzuki 2003-2007 DF60 DF70 Outboard Motors Service Manual, Page 283Get this manual
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DF60DF70 "K4" ('04) model
165 (363.8) 170 (374.8)
700 50 (in-gear: approx700)
mm (in) mm (in) cm3 (cu in) :1 NGK