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Fans Toggle

PapaGeno21

PapaGeno21

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On my 93 GSXR there was two sensors hooked to the radiator. One was the temp sensor, and the other was another temp sensor that kicks on the fan.

The one that kicked on the fans had two wires coming from it and if you connected a toggle switch to those wires you could hit the switch and it turned on the fans. If you did not use the switch the bike would do the fan operations on its own.

I was wondering if you can do that with these bikes? I have a toggle and wire and just would like to be able to kick them on say at around 195 while sitting in traffic vs at like 212.

I read The Adjusters method of doing it, and I love that but at the same time I want to be simple about it and just use a toggle.

IS it possible?
 
Yes and its simple ! Just need to tap one wire, run to a toggle/ground.

check the first 8 posts on this thread. http://www.yamahafz1oa.com/forum/showthread.php?t=81504&highlight=adjustable+fan
Will show you what wire at the relay.

Post #5 and #8 explains the toggle option instead of using the thermostat .

THIS POST HAS GOOD DIRECTIONS http://www.yamahafz1oa.com/forum/showpost.php?p=2200738&postcount=71

The computer grounds 1 wire to turn on the fans at a certain temp.

If you tap the wire and ground it, you can turn the fan on and off whenever you want AND IT STILL WORKS NORMALLY WHEN YOU DONT :)
 
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Ok great, that is the thread I have saved for the adjustable thing he did.

Maybe I am a dumbass, but which wire would I be hooking the switch to?
 
When its 95 degrees outside and you are sitting in traffic, would you rather put the fans on yourself at say 190 degrees and bring it to like 180 and deal with THAT heat... OR wait for it to get to 212, kick on, then go up to 220 before starting to cool down.

I am sure I will enjoy being able to not cook my legs as MUCH.

And hell, if I don't use the switch then the bike will just do its thing like normal ;)
 
PapaGeno21 said:
When its 95 degrees outside and you are sitting in traffic, would you rather put the fans on yourself at say 190 degrees and bring it to like 180 and deal with THAT heat... OR wait for it to get to 212, kick on, then go up to 220 before starting to cool down.

I am sure I will enjoy being able to not cook my legs as MUCH.

And hell, if I don't use the switch then the bike will just do its thing like normal ;)
Click to expand...

Bingo ! I've put a fan switch on most of the bikes I've owned over the last 20+ years.
If you wire it so its still comes on with the factory thermostat AND a switch you have no downside at all.
Comes in handy on the dyno, at red lights, traffic jams, drag strip after your pass, doing a throttle-body sync and so on.
 
I often wondered why on earth the fans didn't kick on until 212F or so, even on the FZ6R... especially in this close to 100F heat we've been having... never thought about adding an extra switch to kick them on a bit early...

as an added benefit, I guess, when it's only 40F out and you want a little extra heat :yes:, kick on the fans when the temps are only hovering around 160ish at stop lights and such, or would that be bad???
 
Rabbitman109 said:
Seems like it is above my head to do this mod.
Click to expand...

Dude. You just did a projector setup. This took me 20 mins and a few wire connectors.


dart1963 said:
when it's only 40F out and you want a little extra heat , kick on the fans when the temps are only hovering around 160ish at stop lights and such, or would that be bad???
Click to expand...

Yes. The engine needs to be up to operating temp so the oil is properly lubricating the engine.
 
super googan said:
Yes and its simple !



If you tap the wire and ground it, you can turn the fan on and off whenever you want AND IT STILL WORKS NORMALLY WHEN YOU DONT :)
Click to expand...

Just a caution here.
Make certain that the circuit still works normally - no matter what your added switch does. If it does not, you run a very really risk of overheating your engine - by forgetting to turning the fan on.

I can't help it this comment... It's kinda hard for me to imagine a splice into a on-circuit that allows another switch - the computer controlled switch - to still function.
I do have an electrical background.
 
It works. When you are not using the switch the computer grounds out the relay which sends power to the fans.

You are just splicing into that ground wire, and running a wire to ground with a switch. When you flip the switch, it grounds the relay. Plain and simple. If you do not flip the switch, the computer grounds the relay and the switch is just not the path the power takes to ground it out.

Hope that makes sense.

This is coming from someone who does not know a lot about electrical. LOL
 
PapaGeno21 said:
Dude. You just did a projector setup. This took me 20 mins and a few wire connectors.
Click to expand...

I guess I am just not sure with the relay and all that which wires. I am sure if I dove into it, I would be able to figure it out. Maybe some pictures? What is required? A two pole toggle switch? I am definitely interested in doing this mod. Where did you mount your switch? Would want it to look factory. Any help would be appreciated.
 
You will want to make sure your splice didn't break the wire, leaving only the added switch... that would be the warning....

but
picture this relay

top left is +12

Bottom Left is the "switch"ed ground from the ecu, this is where you add a second switch. You turn it on, the fan comes on, even if the ecu decides it's time to turn it on, it's just grounding what you've already grounded, no issues. If you leave your switch off, the ecu can still turn it on.

Top right power to the fan -switched
bottom right - incoming +12

relay_diagram.gif
 
Rabbitman109 said:
So basically a jumper around the circuit where the fan is controlled by the ECU? Sounds easy enough. Where is this relay I guess is my question. I think I read that it is the little grey wire?
Click to expand...

Take the driver seat off the bike. Where the tab of the seat clicks into the mechanism, there is a relay almost under it to the right if you were sitting on the bike. There is a clear plug plugging into a black plastic box. The relay is attached to a plastic post with a rubber grommet. You will know you have the right one just because it only has 4 wires and it just ends at that relay.

Little gray wire. Strip some insulation off it, run a wire from that stripped spot to a two pole toggle. Then run a wire to the other pole of the toggle and ground it somewhere. Boom. Turn on the switch and there you have it.

:)
 
dart1963 said:
You will want to make sure your splice didn't break the wire, leaving only the added switch... that would be the warning....

but
picture this relay

top left is +12

Bottom Left is the "switch"ed ground from the ecu, this is where you add a second switch. You turn it on, the fan comes on, even if the ecu decides it's time to turn it on, it's just grounding what you've already grounded, no issues. If you leave your switch off, the ecu can still turn it on.

Top right power to the fan -switched
bottom right - incoming +12

relay_diagram.gif
Click to expand...


So you've actually got two light circuits now. That is your thinking?
 
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