FE390 Wiring diagram/and/or workshop manual

hiya

did you have a look here: Service Manuals - Husaberg Forum

if it's not there then there's the google drive, on the run so can't find a link atm but we'll get you that diagram

The fan is not in the manual. It has it's own fuse so if you follow the wiring from the temp sensor you should find it. It's tucked up somewhere in the area cylinder-tank-radiator.

An old topic, but here goes, nevertheless..

gusman77 said:

Been having a bit of a tinker with it-I am wondering if the fan is supposed to be operating all the time or only when temperature reaches a certain point?

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Only at certain intervals. The temp range is stamped on the side of the sensor. If my memory serves me right, the one that ships with the fan is 110-95C. So it would engage at 110 and shut down at 95, Celsius. Once my FE390 got hot on a summer day in a tough rocky spot, the fan would be running all the time, though..

Everything seems normal with the wiring and fuse-if I join the wires from temp sensor the fan goes but when bike gets hot with the lot connected to the right places the fan doesnt work-I am thinking sensor-would that be correct?

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Based on this analysis I'd say it might be the temp switch/sensor indeed. You could try heating it up with something and checking with a multimeter when does the switch close (by boiling it might be difficult, due to 110C..). And when it cools down, it should open up again.

BTW, I recently removed my fan altogether, as I noticed that it had a negative impact on the fuel heating issue, because of the exhaust pipe location + hot air from the fan. The bike runs a bit better now, since the fuel stays cooler and the tank breather hose kick-back valve stays open, as there is less fuel vapour.

Otherwise I'd have to fashion a heat shield / air guide of some sort, between the fan and the fuel tank..