2005 Yamaha F90TR 90HP Outboards Factory Service Manual, Page 208Get this manual
Electrical systems 6Check that there is no continuity between the relay terminals and after disconnecting battery terminal from the relay terminal or 4Replace if there is continuity
2Listen for the operating sound of the electric fuel pump 1Check the fuel system if there is no sound
NOTE: After the engine start switch is turned to ON, the electric fuel pump will operate for seconds
S6D88120
Checking the main and fuel pump relay (fuel control)