Yamaha F100B F100C Outboards Factory Service Manual, Page 310Get this manual

Yamaha F100B F100C Outboards Factory Service Manual, Page 310

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Electrical systems

S60C8170

2 Measure the thermo sensor resistanceReplace if out of specificationThermo sensor resistance: at 20 (68 F): 2.45 at 40 (104 F): 1.15 at 60 (140 F