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08-23-2015, 08:07 AM | #1 |
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Radiator Fan
So after riding for a few hours I noticed that I never once heard my fan turn on like I usually do when I stop or shut down.
I checked the Maintenance Manual and it has the following to check if the fan is working. Using an auxiliary lead [A], connect the radiator fan switch connector [B]. Radiator Fan Switch [C] If the fan rotates, inspect the fan switch (see Radiator Fan Switch Inspection in this chapter). My question is what is an "auxiliary lead" and where do I get one? Login or Register to Remove Ads |
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08-23-2015, 08:40 AM | #2 |
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Another term for it would be a "jumper wire", and you could use any piece of scrap wire, probably about 3~4 inches long would work.
The only time my fan ever comes on is on a very hot day, in stop & go traffic.
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Cliff "VulcanE" Evans 2005 Blue & Silver 1600 Nomad VBA # 320 VROC # 20381 |
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08-23-2015, 07:50 PM | #3 |
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Thanks man. So do I just shunt it. I mean use the wire to loop it back on itself, or do I connect it to a power source?
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08-23-2015, 08:19 PM | #4 |
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Unplug the fan switch and connect the 2 leads together by the jumper to see if the fan works.
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Robert Torrey VBA# 02077 Vroc# 27672 1996 800A Customized (SOLD) 2001 1500 Nomad (The Mistress) 2013 Voyager 2014 SE Rally - Elkins, WV 2016 SE Rally - Helen, Ga |
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08-24-2015, 05:06 AM | #5 |
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Just a side note.
The switch is always hot, it's the ground side that is switched. So yes, just jump the 2 terminals and it should spin. If you have a bad fan I have a couple sitting in my warehouse. MT
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08-24-2015, 07:42 AM | #6 |
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Check the radiator cap first. That was the issue when my fan quit.
You can borrow a tester from the parts house if you need it. http://tearitupfixitrepeat.blogspot....iator-cap.html The next check is the fan switch and the fan itself. I wouldn't run a manual switch because that circuit is hot all the time. |
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08-24-2015, 04:58 PM | #7 | |
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Quote:
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08-27-2015, 02:52 PM | #8 |
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Location: Charlotte, NC
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My fan sensor-switch went out. Was an easy fix.
I can't remember the exact temps but the fan comes on way high on the temp. Plus, the sensor is at the bottom (coolest) part of the radiator. Really bad design. All automotive fan switches are in the engine themselves. So when the sensor sees 200 degrees it is probably closer to 220-230 coming out of the engine. If I remember correctly the stock switch comes on at 210-220 degrees. I put an automotive sensor in mine that comes on closer to 190 degrees. I hear my fan come on more now but I feel the poor engine isn't getting cooked. The automotive one had to be spliced onto the factory switch connector is all. I will try to find what one I got. Edit: it was a Duralast SW526. I also remembered the oring was a little different but I have not had any leak issues from it.
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2005 Nomad 1600
Last edited by Mongo PHUMC; 08-27-2015 at 02:54 PM.
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08-27-2015, 07:18 PM | #9 |
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Good stuff Mongo. On my ride back from Canada on a blistering hot day my fan finally came on and I wasn't happy about how long it took. Another bucket list mod for mine.
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Mike USN Retired 2007 Nomad |
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08-27-2015, 07:49 PM | #10 | |
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Quote:
http://www.ebay.com/itm/Kawasaki-270...4ee74d&vxp=mtr
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08-27-2015, 09:35 PM | #11 |
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Yup, that's the same switch that I used.
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Robert Torrey VBA# 02077 Vroc# 27672 1996 800A Customized (SOLD) 2001 1500 Nomad (The Mistress) 2013 Voyager 2014 SE Rally - Elkins, WV 2016 SE Rally - Helen, Ga |
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08-28-2015, 10:25 PM | #12 |
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Join Date: Nov 2014
Location: Fuquay Varina, NC
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Replaced my fan switch with the Duralast SW526 tonight. Put an ohm meter on the old one and put it on the burner of the kitchen stove...no meter movement which tells me that its open; defective...is this a good test or should I have boiled water?
Can't start the engine due to the late hour in the neighborhood, so will have to wait to see if the fan comes on tomorrow. And, yes, I shorted the leads together and the fan does come on.
Last edited by Eddie R.; 08-28-2015 at 10:27 PM.
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08-29-2015, 08:57 PM | #13 |
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Location: Fuquay Varina, NC
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Ran bike after the installation of the new Duralast fan switch...fan works as it should. The OEM fan switch was defective. Many thanks to Mongo for the Duralast part number. Oh, it is one of the easiest fixes of any problem on the bike! Only lost maybe two tables spoons of antifreeze. And added male plugs for the wiring.
Ride Safe, Eddie R. |
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09-07-2015, 01:23 PM | #14 | |
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Quote:
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