Suzuki 2003-2007 DF60 DF70 Outboard Motors Service Manual, Page 84Get this manual
ENGINE CONTROL SYSTEM
INSPECTION
PRECAUTION ON SYSTEM INSPECTION
To prevent any unexpected engine start, perform the following before proceeding with any CRANKING tests When performing tests not related to the fuel injector operation:Disconnect all fuel injector wire connectors When performing tests related to the fuel injector operation:Relieve fuel pressure in line(See the page 5-2Disconnect the high pressure fuel pump wire connector located on the fuel vapor separator