2006-2010 Suzuki DF150 / DF175 4-Stroke Outboards Service Manual, Page 184Get this manual
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FUEL SYSTEM
4 Tighten delivery pipe bolts and make sure that injectors rotate smoothly& Fuel delivery pipe bolt: 23 Nm (2.3 kg-m, 16.5 lb-ft)
5 Install fuel filter bracket and tight