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Cooling Systems Cooling Systems - Radiators, Water Pumps, Fans, Coolant, etc.


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October 26th, 2010, 06:33 AM   #1
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cooling fan kit?

where can i find one for my husa 450 2009!?(on line)

thanks
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October 26th, 2010, 08:14 AM   #2
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Re: cooling fan kit?

I got my kit from Off Road Boss.

I know a lot of people buy parts themselves and save a few bucks, but I would recommend getting the Husaberg factory kit.

My design concerns were:

airflow vs. current draw - wanted the best compromise between the two
wiring harness quality and compatibility with existing harness
robust mounting to the radiator
vibration and shock resistance of the fan motor
fluids compatibility and water resistance
electrical transients - I've seen too many expensive electronics parts blown by switching cooling fan motors off. I don't know what voltage the bike's system will handle, and if I bought an over the counter fan motor, I would not know what transient suppression was built in. This is something that requires a bit of testing, and I didn't care to risk my electricals for an experiment.

Furthermore, a sturdy fan made for an application like this cost $70 - 80 to begin with, so I wasn't going to save much by homebrewing.

I figured with the factory kit I would be getting the benefit of the husaberg design engineers' expertise, as well as saving myself a lot of time, and possibly a lot of future grief.
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October 26th, 2010, 08:15 AM   #3
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Re: cooling fan kit?

Oh, sorry, Boss doesn't ship overseas for the most part.

Look for a KTM or Husaberg dealer.
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October 30th, 2010, 07:38 AM   #4
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Re: cooling fan kit?

i did buy the original fan kit from husaberg..120 euro!

will fit it in this week!
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October 30th, 2010, 11:46 AM   #5
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Re: cooling fan kit?

My kit (Husaberg) cost $140
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November 1st, 2010, 06:57 AM   #6
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Re: cooling fan kit?

Mine too. Then I paid an extra 20 or 30 bucks for the BMW coolant temp sensor, but it works perfectly.
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November 1st, 2010, 03:49 PM   #7
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Re: cooling fan kit?

I just myself the KTM/Husb kit and have one question. Can i assume that the way its wired means it will switch itself off when the motor stops running? If its on when i want to switch off, is it worth leaving the motor running til the fan stops?

I have never had a fan on any offroad bike, but this 570 does seem to run a little hot.
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November 1st, 2010, 03:59 PM   #8
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Re: cooling fan kit?

Originally Posted by colinmc400
I just myself the KTM/Husb kit and have one question. Can i assume that the way its wired means it will switch itself off when the motor stops running? If its on when i want to switch off, is it worth leaving the motor running til the fan stops?

I have never had a fan on any offroad bike, but this 570 does seem to run a little hot.
No, do not run the motor until the fan stops. Just shut her down, the fan should shut off as well.
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November 1st, 2010, 04:04 PM   #9
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Re: cooling fan kit?

If the Fan is running when you switch the engine off it runs for about another 10seconds (Can't remember exactly how long) until the Power Relay turns off.

I drew a wiring diagramm for the fan in this post:

viewtopic.php?f=25&t=12658&

With the factory fan I have never seen the engine get hotter than 104C.
I agree with berger, "No, do not run the motor until the fan stops. Just shut her down"

Davo
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November 1st, 2010, 08:49 PM   #10
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Re: cooling fan kit?

Cool - thanks!
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