Fan Relay - Wrist Twisters
 
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post #1 of 8 Old 06-05-2013, 08:23 PM Thread Starter
Tirone
 
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Fan Relay

So, I was in traffic last week and I noticed that my temp crept up well above where it belongs. I looked down and I realized that my fan wasn't turning on. Now, I rebuilt this bike from a wreck and I noticed that the radiator was bent and holding the fan in place. I pulled the radiator, unbent it, tested it for leaks, tested the fan on a power source and put it back together. The fan still won't kick on when it gets hot. So, after a cursory search people seem to think that it might be a fan relay, however, none of this searching identifies where the aforementioned relay is.

My question, does this sound like a reasonable diagnosis? If so, where exactly is this relay? :P

Thanks in advance

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post #2 of 8 Old 06-05-2013, 10:00 PM
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How hot are you letting it get. Typically the gauge has to reach a little over half way for the fan to kick on.

As far as the relay location its under the seat by the flasher relay on the throttle side of the backbone kinda tucked under the rear cowle.

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post #3 of 8 Old 06-06-2013, 04:38 AM
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You may want to make sure the fan is plugged in. There is a connector near the frame on the right side just behind the radiator. I only mention it since you went thru a rebuild and it would be an easy thing to miss.

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post #4 of 8 Old 06-06-2013, 06:30 AM Thread Starter
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I let it get just below the red line before I shut it down to cool off. I double checked the connector and it's firmly attached.

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post #5 of 8 Old 06-08-2013, 07:25 AM Thread Starter
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Welp, looked under the rear cowling and found three identical relays (and the turn signal relay) when I checked the fiche on the Honda website, they all said "Starter Relay" however, the one closest to the front was kind of cracked and destroyed so I'm probably going to replace that one and see how it goes.

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post #6 of 8 Old 06-08-2013, 09:25 AM
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Quote:
Originally Posted by FatMouse View Post
Welp, looked under the rear cowling and found three identical relays (and the turn signal relay) when I checked the fiche on the Honda website, they all said "Starter Relay" however, the one closest to the front was kind of cracked and destroyed so I'm probably going to replace that one and see how it goes.
If they are all the same, just swap them around...might mark their original ordering just for grins.

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post #7 of 8 Old 06-08-2013, 01:44 PM
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WOuldn't attaching a 12V source directly to the fan plug work? Or do the fans run at a different voltage?

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post #8 of 8 Old 06-08-2013, 01:49 PM Thread Starter
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Tested fan when I pulled radiator. Tested okay.

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