fan switch

[3W-lonerider]

got a question about wiring in a fan switch that when i get stuck in traffic on an extremely hot day i can turn the fan on and let it on till i get moving again..so heres the question.
 i know where the fan switch is..and my fan is working normally comes on  and goes off like it should..but when i test that fan switch i have 12 volts sitting there..i was under the assumption that switch supplied the ground to turn the fan on when the switch closed.
 what am i missing here..

[Bone]

Did you see this in Shoptalk?

http://www.valkyrieriders.com/shoptalk/fanswitch.htm

[3W-lonerider]

yes i seen that. iv'e also looked at the skymatics on that circut which tells me the thermo sensor when it closes completes ground..assuming that the thermo switch completed the ground circut for the fan to come on that would work fantastic..but the wire going to my thermo switch is positive. which isn't making any sence. like i said before..my fan comes on and cycles fine. if i pull the wire off the thermo switch and try grounding it..iv'e got sparks and arcing. iv'e checked the wiring at the noise suppressor plugged into the fan circut and i have 1 hot and 1 ground..when i ground the neg. wire the fan does not come on.

[Ricky-D]

There have been discussions recently about that same subject, I would say in the past three or four months.

Some riders want the same as you and discussed going that same approach.

Use the search option and you ought to find it.

If you post your results or have a problem finding what you need, just come back and ask for more help.

***

[RP#62]

yes i seen that. iv'e also looked at the skymatics on that circut which tells me the thermo sensor when it closes completes ground..assuming that the thermo switch completed the ground circut for the fan to come on that would work fantastic..but the wire going to my thermo switch is positive. which isn't making any sence. like i said before..my fan comes on and cycles fine. if i pull the wire off the thermo switch and try grounding it..iv'e got sparks and arcing. iv'e checked the wiring at the noise suppressor plugged into the fan circut and i have 1 hot and 1 ground..when i ground the neg. wire the fan does not come on.

Power goes from the fuse to the fan motor and the motor gets its ground through the switch.  If you take the wire off the switch and put a meter on it, you're going to read voltage through the motor.  When you ground the wire going to the switch you will probably see some sparks, but the motor should come on.  Are you sure you are touching it to a proper ground? 
-RP

[X Ring]

I went to O'Reilly's and found some connectors that would piggyback off the female spade from the fan motor.  Slid the male spade on the other end out through the rubber boot, ran a wire with to a switch then down to a ground.  Works perfectly.  Use mine primarily when sitting in traffic during the summer and on Patriot Guard escorts.

Marty

[3W-lonerider]

ok gents. thanks for the responces..i'll leave the wire hooked to the thermo switch and tie another wire into it.

[Mr.BubblesVRCCDS0008]

My switch is out right now. I'm using a toggle switch I already had mounted in the fairing to put the fan to ground when needed. As soon as the new switch gets here I'm gonna do the same thing and turn the fan on and off manually if I see traffic bunching up. I'll leave the switch on the radiator to save me if I don't notice temperature rising. I have a temperature guage mounted in my right pod to monitor heat.

[gregc]

That is correct, you should have voltage at the wire going to the temp sensor. 12 volt goes to the fan motor, the groung wire from the fan motor is now hot and looking for a ground to complete the circut. Normally the temp sensor would reach the desired temp and make that connection complete. you can do the same by tapping into the sensor wire, going thru a switch to ground.  It will over ride the sensor.