Not real clear on this so I figured Id post a thread.......Im wanting to wire a switch to my fan to turn it on and off whenver but also wanting it to kick on by itself......did it on a 900 but bypassed the temp sensor not wantin to do that becomes a pain....

 

Usually the +12 comes to the fan always when the power is on. the fan kicks in when the temperature switch grounds the circuit. you need additional switch paraller to the temperature switch.

The switch is probably at the rad. Just short it out with piece of wire and if the fan kicks in, you have the right one. then just connect manual switch paraller to the switch.

this way the the automatic switching on/off works, but also your manual switch works.

 

i did this on my 98 RR. all u need 2 do is get a splitter conection (one wire to 2 wire) run that from the temp sensor to a switch. then run a ground wire from the switch to the frame. u should only need 2 wires, at least thats how mine is and the fan still kicks on automatically.

 

So basically Im tappin into the +12 side of the temp switch runnin it to a switch then grounding that to the frame?

 

Here is my MS Paint rendition of the job. Just as it was explained by Jaket. Its just putting a switch between the two wires coming out of the thermostatic switch.

 

just gotta ground her out.

 

I tried that and it didnt work

 

are u sure u try'd a good ground?

 

went straight to the block with the ground

when that didnt work I ran a wire right to the - on the battery

 

wait, i believe u gotta ground out the wire leading off the radiator temp switch, just tap into it and run a switch inline to a ground .

 

grounding, switches, i'm about as confused as a baby in a topless bar

 

"So basically Im tappin into the +12 side of the temp switch runnin it to a switch then grounding that to the frame?"

no, this is short circuit. you gonna blow the fuse. check the picture.

 

Alright I got it, thanks man