Author Topic: Radiator Fans not turning on  (Read 10952 times)

Offline Rembrant

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Re: Radiator Fans not turning on
« Reply #20 on: July 02, 2014, 06:29:56 PM »
Looks like to me it's 27002 but I would want someone else confirming that...


Yup...and I believe the fan relay is the one on the left hand side/end...for diagnostic/checking purposes. It's in the same location on the 2006-2011 ZX14 as well...at least it was last time I checked. I'd also want someone else to confirm it besides me...I haven't looked in a while....jus going by fuzzy memory here.

Those relay packs are on Ebay all the time.
“If you're not a liberal at twenty you have no heart, if you're not a conservative at forty you have no brain.” ~ Winston Churchill.

Offline gPink

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Re: Radiator Fans not turning on
« Reply #21 on: July 02, 2014, 07:43:00 PM »
Yup...and I believe the fan relay is the one on the left hand side/end...for diagnostic/checking purposes. It's in the same location on the 2006-2011 ZX14 as well...at least it was last time I checked. I'd also want someone else to confirm it besides me...I haven't looked in a while....jus going by fuzzy memory here.

Those relay packs are on Ebay all the time.

I wonder why that would be? Are they parting out that many bikes or are they just not needed that much?

Offline Rembrant

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Re: Radiator Fans not turning on
« Reply #22 on: July 03, 2014, 04:46:06 AM »
I wonder why that would be? Are they parting out that many bikes or are they just not needed that much?

Never needed. It's like Kawi ECU's and the CDI boxes on all the carbed Kawi bikes like the ZRX1200R, and all the Ninjas. It's so rare that those parts ever fail, the salvage yards can't give them away. It's not that people don't buy them...they do while troubleshooting a problem, but in the end usually find a bad ground somewhere, and put their spare relay pack/ECU/CDI on the shelf in the garage where it collects dust forever...lol.

Rem 8)
“If you're not a liberal at twenty you have no heart, if you're not a conservative at forty you have no brain.” ~ Winston Churchill.

Offline dave3223

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Re: Radiator Fans not turning on
« Reply #23 on: July 03, 2014, 04:17:26 PM »
and success.
Both fans turned on for about 30 seconds after letting the bike idle for 10 minutes. I was on the 4th bar for about 2 minutes before the fans started up. I wonder if the smaller fan wouldn't start up before because the larger one couldn't or if i didn't wait long enough for it to kick on. (I thought the fans should start up as soon as the 4th bar hit, so I don't think I waited as long when I tested it before). I didn't even see the 5th bar light up before the fans kicked on.

This was a pain of a job, but the ratcheting wrench made it possible to do without removing the radiator/more plastics. I still can't believe the fan assembly's price, over $400 even on partshark. Yay for ebay, $40. Hopefully I can get it put back together and get some riding in tonight.

Thanks to all who answered.

Offline Rembrant

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Re: Radiator Fans not turning on
« Reply #24 on: July 03, 2014, 06:20:43 PM »
I didn't even see the 5th bar light up before the fans kicked on.

Dave, glad you got it all sorted out. Definite win! Nice work.

Just in case you're curious, below is the list of actual temperatures that correspond to the blocks on your temperature gauge. I've posted these before, so this is just a copy and paste...but you will see that the cooling fans come on after the fourth block comes on, and shut off before the fifth block comes on (usually). If the ambient temps are hot (hotter) then you may still see the 5th block come on once in a while.

Block # 1 comes on at 30*C (86*F)
Block # 2 comes on at 50*C (122*F)
Block # 3 comes on at 70*C (158*F)
Block # 4 comes on at 85*C (185*F)
Block # 5 comes on at 100*C (212*F)
Block # 6 comes on at 110*C (230*F). If this block comes on, you are overheating, and the whole screen will be flashing a temperature warning. The 110*C I am posting here is an estimate...I am not curious enough to overheat my engine to find out, but the FSM gives 110*C (230*F) as the upper test limit. I've never hit the sixth block in either of my two Concours-14's, but I have seen 105*C on several other Kawasaki's I have had, and still never got an over-temp warning. My curiosity was only with normal operating temps...not the overheating limit.

Cooling fans turn on at exactly 95*C (203*F) and shut off at 90*C (194*F).
“If you're not a liberal at twenty you have no heart, if you're not a conservative at forty you have no brain.” ~ Winston Churchill.