Radiator Fan - Kawasaki Vulcan Forum : Vulcan Forums
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post #1 of 27 (permalink) Old 05-10-2012, 08:17 PM Thread Starter
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Radiator Fan

OK, does anyone know at what temp the fan is supposed to come on at? I don't think I have ever seen of heard it come on. Yesterday it was 97 here and riding home it was a little hot, to say the least. At each stop, I looked down and it wasn't on. Any ideas/suggestions?
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post #2 of 27 (permalink) Old 05-10-2012, 08:25 PM
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Dude! It ain't working.

Get a new one before you ride again.
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post #3 of 27 (permalink) Old 05-10-2012, 08:37 PM
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Sounds like you might have a bad temp sensor. The fan on my 2010 900 comes on pretty steady whenthe outside temp is in the 90's.
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post #4 of 27 (permalink) Old 05-10-2012, 09:14 PM
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Mine comes on in the 80-90's as well. You really ought to have it checked.

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post #5 of 27 (permalink) Old 05-11-2012, 01:40 AM
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Fan on my 05 800 almost never comes on. Have quite a few high 90 low 100 days here to. May be ok, but to be safe, should get checked. Even 2 hrs shop fee cheaper than. Ew motor!
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post #6 of 27 (permalink) Old 05-11-2012, 03:01 AM
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Quote:
Originally Posted by MattB View Post
OK, does anyone know at what temp the fan is supposed to come on at? I don't think I have ever seen of heard it come on. Yesterday it was 97 here and riding home it was a little hot, to say the least. At each stop, I looked down and it wasn't on. Any ideas/suggestions?
First, remove the left side cover and open the fuse box. Locate the fuse for the cooling fan and check that it's OK. Next do what the dealer will do with it. Finish your ride and park the bike with the engine running. If the high temperature light comes on before the fan then you know there's a problem.
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post #7 of 27 (permalink) Old 05-11-2012, 06:13 AM
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Quote:
Originally Posted by MattB View Post
OK, does anyone know at what temp the fan is supposed to come on at? I don't think I have ever seen of heard it come on. Yesterday it was 97 here and riding home it was a little hot, to say the least. At each stop, I looked down and it wasn't on. Any ideas/suggestions?
Take it for a ride.....stop at a location and have a smoke,,,,,and let it idle for ten minutes. If the fan doesn't come on it's not working. My fan RARELY comes on.....if at all! But, it will when i let it idle on HOT day. We do have a temp light on our bikes.....is it ever on?..sheesh, i think we do....fi, oil and temp?

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post #8 of 27 (permalink) Old 05-11-2012, 06:18 AM
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before you try to overheat your bike. check the fuse, then the fan is very simple two wire setup. grab some old speaker wire or any wire you have really and run voltage(from battery) directly to the fan. It should spin. if it does you know that it good and you can go on to check your temp sensor and other connections. I dislike the idea of prolonged idling with not knowing the condition of the fan. It is hard on the engine and if it really isn't working you may cause damage even if shut down when the light comes on as you aren't circulating any coolant at that point it will sit and bake when shut down.

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post #9 of 27 (permalink) Old 05-11-2012, 06:20 AM
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Quote:
Originally Posted by MattB View Post
OK, does anyone know at what temp the fan is supposed to come on at? I don't think I have ever seen of heard it come on. Yesterday it was 97 here and riding home it was a little hot, to say the least. At each stop, I looked down and it wasn't on. Any ideas/suggestions?
I had the same problem a few years ago. Bought a fan motors for her off ebay, installed it two years back just because I was paranoid. Turned out I had a good reason to be, the new fan comes on all the time when it hits the mid 80's to 90's here. When she is running the temp is fine, but at idle that fan should kick on fairly quick in that temperature range.

dum vita est spes est - While there's life, there's hope
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post #10 of 27 (permalink) Old 05-11-2012, 06:20 AM
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Originally Posted by ol'yella View Post
before you try to overheat your bike. Check the fuse, then the fan is very simple two wire setup. Grab some old speaker wire or any wire you have really and run voltage(from battery) directly to the fan. It should spin. If it does you know that it good and you can go on to check your temp sensor and other connections. I dislike the idea of prolonged idling with not knowing the condition of the fan. It is hard on the engine and if it really isn't working you may cause damage even if shut down when the light comes on as you aren't circulating any coolant at that point it will sit and bake when shut down.
(better advice)...lol.

2009 VN900 Classic LT.
Nova Scotia, Canada.
Cobra luggage rack.
Kuryakyn Grand Tourer luggage bag.
Kuryakyn air filter cover.
170/80/15 Metzler rear tire.
Fire and Ice passenger floorboards.
Stage 2 debaffle (screens left intact).
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