Cooling indicator light - Kawasaki Versys Forum
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post #1 of 8 (permalink) Old 05-26-2019, 12:55 PM Thread Starter
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Cooling indicator light

Hi there! I have a new-to-me 2009 Versys 650 that I am quite enjoying. During today's ride, I noticed my right knee getting warm. Since there is no temp gauge, I must rely on the water temperature warning light. I assume everything works, but how do I know?

First question: When I turn the key to the "on" position (but don't start the bike), the oil pressure warning light comes on, but not the water temp light. Does anyone know if it is supposed to?

Second question: How do I test it? The service manual details how to remove the sensor and place it in water, etc. but that seems excessive considering it might be fine.

Any advice? Sorry if this is covered somewhere else, couldn't find it.
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post #2 of 8 (permalink) Old 05-26-2019, 01:55 PM
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Hey There. I'm in the middle of diagnosing some cooling issues too (on my 2011, with 42.5K miles). There are a few threads on the topic. I've got a few things going on, not sure if they're all related, but I assume they are to some degree...

Start here:

Things I've looked at so far (in no particular order):
0. START with checking the fan fuse...that's the easiest and least expensive place to begin...
1. Fan relay - kind of a PITA to test, gotta remove a bunch of stuff and be somewhat savvy with a multimeter.
2. Thermostat (OK) - Easy to do the heating in water test (I used a candy thermometer and rigged it all up using a coat hanger and rubber bands). You're best off replacing the gasket for the thermostat cover when you replace it.
3. Test the fan itself (mine might be faulty)
4. Coolant flush - When I drained the coolant, there were definitely little chunks of sediment. They could have been restricting coolant flow. A good thing to do, but I don't think it's the cause of my fan not turning on.

I have not yet tested the water temperature sensor. I'm not sure if that tells the fan to kick on or not. I need to learn a bit more about that...

Good Luck!

2011 Imperial Red
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post #3 of 8 (permalink) Old 05-26-2019, 05:56 PM
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The only time my over temperature light has come on was when I was doing @106 mph for a prolonged period of time on a 90+ degree day. Otherwise, I had never seen it before and definitely not on startup. I am glad to know that it works.


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post #4 of 8 (permalink) Old 05-27-2019, 12:51 PM Thread Starter
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Hi Baileyman, thanks for the info. I understand all the things I can do if the system does not work; My question (more specifically articulated this time) is how do I know if it is working or not?
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post #5 of 8 (permalink) Old 05-27-2019, 01:47 PM
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Use a non contact thermometer and check the radiator inlet and outlet temps fan on and off. The manual gave you the temps for the cooling fan on and off temps. If the temp are not excessive you should be good to go. Yea I wish I had a temp gauge to know what was happening. Another reason the bikes cost as little as they do


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post #6 of 8 (permalink) Old 05-27-2019, 10:13 PM
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Cycle Fan / External Thermometer

As in the title, if you have the bike warmed up, let it idle, ambient of about 20"C it should take about 5 minutes at idle 1300 to 1350 RPM, fan on temperature is 212 to 214 'F fan off is 210'F stock.

this is with the improved neat little voltmeter , my bypass for the T Bob, which reads actual discharge temp.I was doing a cycle test after the new flash which lowered the fan on temp by 10'F or approximately 205'F on temp.
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post #7 of 8 (permalink) Old 05-28-2019, 02:08 AM
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Engine temperature monitoring system.

Last edited by Fastoman; 05-28-2019 at 02:11 AM. Reason: addtional info
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post #8 of 8 (permalink) Old 05-28-2019, 07:55 PM
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Hey @shinypartsup.

Not sure if the other posts answered your question or not, but if the water temp light is coming on, that should tell you that something isn't working right with the cooling system. What that something is, is a process of elimination.

I just re-read your post, help me understand...

You don't see the water temp light come on at start up, and your wondering if it should? You're also wondering if there's a problem with the cooling system?

Look at this vid @3:37. It doesn't look like the water temp light comes on with ignition on.

2011 Imperial Red
Givi V46 / V35's SW Motech mounts
Skidmarx hugger Moto Werks bar riser
Mondo Motors LED Driving Lights
A little bit of road rash

Last edited by BaileyMan; 05-29-2019 at 12:25 PM.
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