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Radiator Fan manual switch

Posted: Tue Jan 02, 2018 1:17 pm
by Shammon
Can any one show me a photo or drawing on how to wire in a manual switch so I can switch on the radiator fan when required please,
I also want to keep the sensor. Existing temp gauge not reliable. 77 Gl1000. Thanks

Re: Radiator Fan manual switch

Posted: Tue Jan 02, 2018 1:51 pm
by AZgl1800
go to the sensor, and connect two wires to it, run them to a switch placed where you want it.

good to go.

Re: Radiator Fan manual switch

Posted: Tue Jan 02, 2018 6:45 pm
by Shammon
Thanks. I will give it a try.

Re: Radiator Fan manual switch

Posted: Tue Jan 02, 2018 7:33 pm
by SnoBrdr
Shammon wrote:
Tue Jan 02, 2018 1:17 pm
Can any one show me a photo or drawing on how to wire in a manual switch so I can switch on the radiator fan when required please,
I also want to keep the sensor. Existing temp gauge not reliable. 77 Gl1000. Thanks
The gauges were never spot on, more of a guesstimate.

The fuel gauge is the worst of all.

Re: Radiator Fan manual switch

Posted: Wed Jan 03, 2018 11:37 am
by AZgl1800
As an after thought, the water temperature sensor is very reliable.

What you might like to do, is to wire a light bulb across that switch you install, and IF it is burning, then the coolant temperature "is okay"... a green light if you will that all is fine.

a good way to test that thought, is to set the bike on the center stand, and let it idle and watch to see that the fans cycle on/off.

If the fans cycle on/off repeatedly, and you take a temperature reading with an IR gun, you will soon learn what is normal for your bike.

I keep an IR temperature gun in my saddle bags all the time, it gets used for a lot of things, mostly tires and bearing temps, and sometimes, the radiator.... but, I know that the fans cycle on/off on my bike, and I never get them another thought.