HELP: My 750 overheats....fans don't kick in.?? - MVAgusta.net
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post #1 of 22 (permalink) Old 11-06-2009, 09:12 AM Thread Starter
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Arrow HELP: My 750 overheats....fans don't kick in.??

problem solved.

Last edited by svldvc; 04-06-2010 at 03:41 PM.
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post #2 of 22 (permalink) Old 11-06-2009, 09:16 AM
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Blown fuse? I've discovered when you think something major is wrong, there's usually a blown fuse behind it.
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post #3 of 22 (permalink) Old 11-06-2009, 09:17 AM
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temp switch gone bad. theres 2 of them. one for dash display and one for ECU fan circuit. to make sure the circuit is working properly, you can just ground the switch that operates the fans. if they come on, then you have it for sure.

*edit* assuming fuse is not blown.
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post #4 of 22 (permalink) Old 11-06-2009, 09:30 AM Thread Starter
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where is this temperature switch located??
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post #5 of 22 (permalink) Old 11-06-2009, 09:38 AM
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One is on the top radiator on the left side. You will see the wire.

The other is on the engine, also on the left side.
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post #6 of 22 (permalink) Old 11-06-2009, 09:39 AM
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Quote:
Originally Posted by svldvc View Post
Hello guys.
I've had serious overheating problems on my 2002 750 F4 ever since I got it...and I didn't know what it was.

I drained my coolant and filled it up w/ new one.
But when I ran the bike for the coolant to settle down, I was waiting for my fans to kick in....but they never did...bike started flashing @ 230*F and I shut her down

My 750 has 2 rads & 2 fans.

Anyone knows that the problem could be??
I checked the fans and they are connected.

Please help me figure this one out.

Thanks guys I will appreciate all the help you can give me.

~Sergey~

I had same problem few years back with the EV03

its the diode thats gone

they are cheap to replace.


.
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post #7 of 22 (permalink) Old 11-06-2009, 09:40 AM
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Theres a relay somewhere too.


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post #8 of 22 (permalink) Old 11-06-2009, 09:44 AM
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from what you describe, i still say diode, my troubles were exact to what you describe.

another with similar prob here
http://www.mvagusta.net/forum/showth...ighlight=Diode



.

Last edited by F41NXS; 11-06-2009 at 09:51 AM.
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post #9 of 22 (permalink) Old 11-06-2009, 09:52 AM Thread Starter
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cool..keep them coming.

Last edited by svldvc; 04-06-2010 at 03:42 PM.
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post #10 of 22 (permalink) Old 11-06-2009, 10:00 AM
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well that means the switch is working properly. just have to track down the short. i would check the wires going to the fans because they are closest to the headers. improper wire routing could result in some melting of wires and a short.
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