radiator fan

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Old Apr 1, 2015 | 08:26 AM
  #1  
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Tin
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Default radiator fan

Just a quick question. I haven't noticed the fan going at all. fuse is still good. is it meant to be on all the time or just when bike gets hot
Thanks clint
 
Old Apr 1, 2015 | 10:10 AM
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zl PINHEAD lz's Avatar
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Originally Posted by Tin
Just a quick question. I haven't noticed the fan going at all. fuse is still good. is it meant to be on all the time or just when bike gets hot
Thanks clint

I've only ever heard my radiator fan come on a couple of times in the years of owning the KLX.
On those occasions, it happened in very hot weather.
 
Old Apr 1, 2015 | 10:49 AM
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Thanks for reply so it's normal then for fan to do nothing haha. anyone else know any different
 
Old Apr 1, 2015 | 01:58 PM
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From the 2009 KLX Factory Service Manual:

"When the coolant temperature goes up beyond 95 -101°C (203 -214°F), the radiator fan switch conducts to operate the radiator fan. The radiator fan draws air through the radiator core when there is not sufficient air flow such as at low speeds. This increases up the cooling action of the radiator. When the temperature is below 80C (189°F), the fan switch opens and the radiator fan stops."

Considering the size of the engine and the relatively large dual radiators the fan should come on very seldom if at all.
 
Old Apr 1, 2015 | 04:31 PM
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I hadn't heard mine come since i bought my latest bike, but it has been on the cool side weather wise.

I pulled the plug on the thermostat and shorted across the contacts, just to make sure the fan ran. It did.

My older KLX's fan usually came on only on long slow climbs in warm weather.
 
Old Apr 1, 2015 | 07:38 PM
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No worries thanks for the help fellas
 
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