Fan Connector

Travex

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While waiting for construction I noticed the temp climb into the upper 220's and the fan hadn't come on. Wasn't a problem, just something for the do list. Fuse was good. While following the fan wires to their conclusion it was kind of disappointing to find the connector in such a place as to require the removal of so many components. This is surprising given the necessity of road/trailside repairs. Does anyone have a shortcut on this? Feel like I'm missing something.
 

EricV

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Have you verified that the fan comes on at all? Or just pulled the left side panel to see if the fan blade is stuck or has been pressed against the radiator? No one has mentioned the plug being difficult to get to in the past. As far as trailside repairs go... what would you need to repair? ;) At worst, you'd just be bending the bracket back out so it's not jammed against the radiator. If you ignored it after dumping the bike on the left side so long that it burned out the fan, nothing to fix on the side of the trail.
 

EricV

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The fan comes on at 221F normally. Was it jammed against the radiator? No one has mentioned the plug being difficult to get to that I can recall.
 

Travex

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Thanks for your reply and thoughts. I noticed the fan was inop at 225F and was instantly curious. The bike hadn't been damaged and the fuses' continuity is good, just no usual on @221 & off at 212. The fan moved freely so I ran it up to temp on the stand to see if anything became apparent at 221... Nothing.

The tank had to be pulled back to find the plug unplugged and that's its mate is firmly secured out of grasp w/o first removing the airbox. I can be fairly dexterous and this is in there. I'll get the silly thing... It's just a commonly serviced item that should pretty much be plug-n-play and I felt I was missing something. A potentially simple solution yet simply inaccessible is what I mean by not be readily accessible road/trailside, but I certainly get your repair approach.

Looked around pretty good prior to posting and was surprised to be in the boat alone. I did find several posts about using motors from other Yamaha bikes in a pinch which is a good tip so this wasn't for nothing.
 

EricV

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The fan might not be the issue. The ECU controls the fan, if I recall correctly. So the ECU gets a signal from the coolant temp sensor.

I'm not going to dig through the FSM tonight, but following the signal might result in a clue. Any error codes?
 

Travex

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Thanks again. I think you may have missed that the connector was found disconnected... May not have made that clear enough. No error codes. The problem is that the female for the fan's connector is attached to the frame just far enough behind the frame and airbox that I can't get my digits or a tool in there to reconnect it. In the 2012 manual the connector is noted as #10 on page 6-2. It seems the connector is positioned a bit different from the norm. I'll be back on it early in the week and post the solution.
 

EricV

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No, you did not mention that the fan plug was disconnected when you found it, only that it was difficult to access. Glad you found a smoking gun, so to speak.

I don't have my '12 manual any more, but the '14-15 FSM shows the female plug clipped to the frame and the male end running over the top of the frame and down into it. Should be reasonably easy to get to with the air box removed.
 

Travex

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After the airbox removal it took a second to make the connection. Gave it a quick sprits of ACF-50 and the male clicked positively into place. Ran it to 221˚ and the fan started. Done. Nothing was difficult, just a bit circuitous. Thinking about it has me wondering about two potential causes:

1. Had some time off riding right after interval service was done and think service itself could be a possibility. No problem, love the dealer's shop guys.
2. It was never seated correctly to begin with as I'd never touched it.
 

EricV

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Glad you're sorted and back to normal.
 
R

RonH

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Yea, cause #1 is it. Plugs don't come unplugged on their own. Part of the reason I do all my own service.
 
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