2009 Yamaha F40 Outboard Service Manual, Page 133Get this manual
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Starter motorCommand Link Multifunction Meter sensor Water pressure sensor output voltage (reference data): BlueBlack (LB)Black (B) 2.5 at 392.0 kPa (3.92 kgfcm2, 56.8 psi) 4.5 at 784.0 kPa (7.84 kgfc