Honda Outboards BF40A/BF50A Service Manual, Page 99Get this manual
HONDA BF35A45A
bINSPECTION
THERMO SWITCH
1) Suspend the thermo switch in container of coolant or oilBe sure the switch does not touch the container2) Heat the liquid and note its temperature when the thermo switch closes and there is continuity between the thermo switch lead and body
[1] THERMOMETER
_11_ L_ I- _
UUII "'UW LOti
lnermomeler
louen tna container-