Is anyone running 2 fans?

[SS14PSI]

I want to know if anyone is doing this successfully. When I run both my fans for longer than half and hour or so of riding in warm weather the batteries drain. The wierd part though is that if it's cool outside I can run the fans continuously for even longer without issue. I'm just wondering if 2 fans are too much load. The only other electrical add on I have is a power commander.

 

[1busa]

Im running dual fans but im also running an 08 radiator and I have it wire custom through the fan temp switch so it kicks on and off automatically when necessary

 

[SS14PSI]

In warm weather my fans need to pretty much run constantly in order to keep it cool. So I'm wondering if that is just too much draw for the stator to keep up. I know there is a guy that rewinds them and gets 25% more power out of em but I'm just not sure if I need that or not.

 

[GIXERHP]

Some thing is not right, if it is killing the battery!

You need to test the stator and the regulator completely!

What are you using for a battery?

 

[SS14PSI]

Some thing is not right, if it is killing the battery!

You need to test the stator and the regulator completely!

What are you using for a battery?

I have a 24v setup with a 12 cell ballistic battery for primary and an 8 cell ballistic for the secondary.

 

[dadofthree]

Yes to the question, but mine came from the factory On the 24 V system you only charge one battery with the bike, right ? Which battery do you have the fans attached to. Sorry haven't looked at the 24 v starting systems but have heard guys talk about pulling the one battery to charge after a night.

 

[SS14PSI]

Both batteries charge while riding.

 

[SS14PSI]

I've checked them with a voltmeter while the bike is running and they seem to be about 13.6v.

 

[SS14PSI]

If y'all have a couple minutes, here are two back to back videos I took of the bike idling with a volt meter on the primary battery.

When I switch it up= fans off
Switch down = fans on

I don't know what it means, but at the end of the second video I learned that the fan switch was extremely hot to the touch.

Here's the first vid

w/volt meter 1 - YouTube[/url]


And the second

w/voltmeter 2 - YouTube[/url]

 

[SS14PSI]

I know less than nothing about electrical stuff. Watching the volt meter it looks to me like the charging system isn't up to snuff. Any electrical gurus around here?

 

[GIXERHP]

Your bike is barely charging.

Some thing is not correct, you need to measure the voltage at 2500 rpms for a correct reading to see if the stator, and regulator are working correctly.
At 2500 rpms the voltage should be at least 14.5!

 

[dadofthree]

Not a guru, what I saw in the second vid is the fan(s) are dropping you 2 tenths of a volt. Not much. The Gen I really does a poor job of charging at idle. John knows his stuff, I was thinking 14.5 at 5 K R.P.M.s

 

[Skydyvyr]

Do you have a schematic for your 24V system as well as for the way your fans are wired? Is there a reason you are running the fan directly through the switch as opposed to using a relay?

 

[GIXERHP]

Do you have a schematic for your 24V system as well as for the way your fans are wired? Is there a reason you are running the fan directly through the switch as opposed to using a relay?

My 24 volt system is from Tiger racing, i am selling a spare harness in the for sale section.
As for the fans, my fans are wired in parallel with the oem fan.
The fuse has been exchanged with a 15 amp fuse.
The switch is wired only into the temp sensor, to turn the fan on longer if needed!
It has been on my bike for over 7 years, and works flawlessly!

 

[Skydyvyr]

My 24 volt system is from Tiger racing, i am selling a spare harness in the for sale section.
As for the fans, my fans are wired in parallel with the oem fan.
The fuse has been exchanged with a 15 amp fuse.
The switch is wired only into the temp sensor, to turn the fan on longer if needed!
It has been on my bike for over 7 years, and works flawlessly!

That would be the correct way to set it up -- My question was for the OP. He claimed the switch was getting hot and that the fans were wired directly to the switch. Using the switch to short the temp sensor circuit should not generate any heat at the switch. Running 15A through the switch might. It would also be interesting to see where the pos side of his switch is connected -- is he running 24V+ through the switch and switch and fans, or only 12V+?

 

[GIXERHP]

You are correct,

That would be the correct way to set it up -- My question was for the OP. He claimed the switch was getting hot and that the fans were wired directly to the switch. Using the switch to short the temp sensor circuit should not generate any heat at the switch. Running 15A through the switch might. It would also be interesting to see where the pos side of his switch is connected -- is he running 24V+ through the switch and switch and fans, or only 12V+?

 

[SS14PSI]

Awesome...this is the help I was hoping for. As soon as I can I'm gonna look at how things are wired and get back to you guys.

Question...What does putting a relay in the wiring do for you?

 

[GIXERHP]

You dont need a relay, and you dont need the fans running all the time either, let the cooling system do its job, that's why there is a temps sensor!

 

[Skydyvyr]

Question...What does putting a relay in the wiring do for you?

A relay will not solve your problem, it is just another way to wire the fans. It appears that you are sending too much Amperage (potetially Voltage) through the switch which would result in it getting hot. The hot switch merely indicates that your bike is potentially wired incorrectly. Being wired incorrectly could also result in draining the battery.

If you review the description of how GIXERHP has his setup wired, yours should be set up pretty much the same (although it is possible to go about the 24V setup differently the harness he has is ideal). If your system is wired like his, you do not need a relay.

If however you have wired the fans directly to the battery(s) with the switch in the middle of the circuit, I would highly recommend a relay. For the record, wiring it this way is far less ideal and potentially trouble prone than what GIXERHP has done. I do not recommend this type of design.

So, back to my original question, how are your fans wired?

--Sky

 

[GIXERHP]

Im done,,