Hello everyone...

I have a 2007 Suzuki Boulevard S50 and the water temperature light is on all the time. I've tested the water temp sending unit (the one located on the front cylinder) and have replaced it. I also tested the radiator fan switch and that is good. I also tested the fan motor and all seems well. Things seem to be working properly but the light is still on even at startup.

The only thing I haven't tested is the water temp warning unit inside the speedometer housing. I really can't find any good documentation about testing it. I have a Clymer manual and I was able to find a Suzuki Maintenance/overhaul manual (like what the shops get)and they have nothing in them either.

Any help would be greatly appreciated.