Fan won't turn on - 600RR.net
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post #1 of 23 (permalink) Old 04-02-2007, 10:29 AM Thread Starter
 
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Fan won't turn on

My bike is overheating because for some reason my fan to my radiator will not turn on. I even idle'd the bike to 235 F and it did not turn on. I went on a ride and saw that it got up to 260 when I wasn't moving. Any ideas?
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post #2 of 23 (permalink) Old 04-02-2007, 06:01 PM
 
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Check to see if you have a faulty cooling fan motor or even the fan control relay. Check connections also to the above mentioned items.
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post #3 of 23 (permalink) Old 04-02-2007, 06:16 PM Thread Starter
 
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Would you happen to know where the relay is?
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post #4 of 23 (permalink) Old 04-02-2007, 07:33 PM
 
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should be located on the left mid section, right above the coolant hose. You should see three relays, the one in the middle should be the fan control relay.
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post #5 of 23 (permalink) Old 04-03-2007, 12:53 PM Thread Starter
 
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Do you know how to check it? sorry I'm not that electrically inclined. btw I checked and the fan is getting power but isn't moving. It is actually a little tough to spin with my hand. Seems like it rubs a little on the radiator, possibly
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post #6 of 23 (permalink) Old 04-03-2007, 03:28 PM
 
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if your fan is getting power, then the problem is with your fan. I believe the fan should be able to freespin when there's no power, will check with my bike later on tonight if i remember.
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post #7 of 23 (permalink) Old 04-03-2007, 05:21 PM Thread Starter
 
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Yeah, it seems a little difficult to spin and I hope that it just needs to be loosened up some or something like that so it has more clearance to the radiator, so I won't have to buy a new one.
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post #8 of 23 (permalink) Old 04-03-2007, 06:01 PM
 
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you can try just unbolt the fan from the radiator and bring up your bikes temp and see if the fan spins.
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post #9 of 23 (permalink) Old 04-04-2007, 10:23 AM Thread Starter
 
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Is there an easy way to do that? I mean without taking the upper off and the radiator off?
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post #10 of 23 (permalink) Old 04-04-2007, 01:39 PM
 
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forgot to check my bike yesterday, think you can remove the mid fairings to reach the fan, you just need to loosen the bolts so that the fan isn't touching the radiator. Possibly temporarily shimming so you don't have to hold the fan away from the radiator.
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post #11 of 23 (permalink) Old 04-06-2007, 03:09 AM
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to check to see if the fan is getting power, take a multimeter set to voltage and let the bike heat up to temp, if it starts reading around 12-14 volts when the fan should be on, you have a bad fan motor.
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post #12 of 23 (permalink) Old 04-06-2007, 03:30 AM Thread Starter
 
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I already checked, it is getting power.
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post #13 of 23 (permalink) Old 04-06-2007, 03:33 AM
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well if it's getting power, it's either touching the radiator (i had this problem) or the motor is dead. it also means the relay and fuse are fine.
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post #14 of 23 (permalink) Old 04-06-2007, 10:05 AM Thread Starter
 
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yeah i switched the relay with another one and its fine. It seems difficult to spin the fan so I'm going to try to take it off and bang on the brackets some.
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post #15 of 23 (permalink) Old 04-08-2007, 05:37 AM
 
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sorry it took so long to check, keep forgetting, been busy lately. My fan does spin freely (no effort) with the bike off so you probably wanna try free up your fan from the radiator
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post #16 of 23 (permalink) Old 04-08-2007, 07:44 AM Thread Starter
 
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turns out the bottom bracket was bent so i just put a little spacer in between the bottom bracket and the mounting point and now it turns on. thanks for all the help and the input li1p1aya.
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post #17 of 23 (permalink) Old 10-06-2007, 09:28 PM
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I am having the same problem .. my fan is hitting the radiator .. and I am gonna check using whats said above.. but my radiatir looks a little bent too .. my oil light came on due to overheating a few times .. I have repsol 10w40 racing oil ... whats up with that?
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post #18 of 23 (permalink) Old 10-06-2007, 09:41 PM Thread Starter
 
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just jerry rig a spacer onto there, it seems like the easiest fix to me
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post #19 of 23 (permalink) Old 10-09-2007, 05:30 PM
 
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Quote:
Originally Posted by Dangy View Post
I am having the same problem .. my fan is hitting the radiator .. and I am gonna check using whats said above.. but my radiatir looks a little bent too .. my oil light came on due to overheating a few times .. I have repsol 10w40 racing oil ... whats up with that?
oil light comes on due to very low oil or low oil pressure.
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post #20 of 23 (permalink) Old 10-09-2007, 08:21 PM
 
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i had the same problem on my 07 just put a spacer in there worked for me
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post #21 of 23 (permalink) Old 10-09-2007, 08:38 PM Thread Starter
 
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what causes low oil pressure?
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post #22 of 23 (permalink) Old 10-10-2007, 12:41 AM
 
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All engines will lose a certain amount of oil pressure over time as normal wear increases engine bearing clearances. But unusually low oil pressure in an engine regardless of mileage is usually a sign that something is seriously wrong and requires immediate attention.

In a high mileage engine, low oil pressure is usually due to a combination of worn main and rod bearings and crankshaft journals.
As the bearings wear, clearances increase allowing increased flow which reduces pressure.

Another common cause of low oil pressure is wear or excessive clearances in the oil pump itself, could be debris that passes the oil screen, could be lots of things.

It's really freaking confusing and took me a long time to understand. Light comes on = seek immediate attention as your whole bike is at risk

Last edited by Z-man; 10-10-2007 at 12:43 AM.
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post #23 of 23 (permalink) Old 10-10-2007, 12:46 AM
 
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oh yeah, forgot another common cause of low oil pressure... cloged oil filter will do it too.

This is why I always tell everyone to use Honda oil filter because the pressure relief valve is very specific to Honda bikes, seen this happen in the past...Always use Honda filters!
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