Hi guys,

Not had a chance to look at this properly yet but was wondering anyone had any ideas?

My fan will come on and go off a couple of times - and then just not come on! which of course gets things a little HOT

Any thoughts?

I am off to a wedding tomorrow so wont get a chance for an in depth look til the weekend.

Fortunately being in the UK - it will be winter by Tuesday !

 

If it was me Harry I'd check all the connections, make sure they're clean and tight, a bad connection could be getting hot and expanding breaking the connection.

As it works sometimes, I'd think the motor and the fuse are OK, though may be an idea to check the thremo-swich connections as well.

 

maybe a sensor is not working properly.. not sure where it is located..

 

Wonky thermo switch Harry, my 93 was doing just that very thing, manual switch
fixed her. suffice as to say if she runs steady with the switch wire grounded y'll
know one way or the other

 

My bike gets hot after slowing down.. say goin from 70 to like 30 intown.. and the fan kicks on what would cause it to be normal operating temp to almost it the red when you slow down?

 

It just comes down to you have reduced the airflow thru the radiator, fan is doing what it is designed to do. Mine does the exact same.

 

Harry, as Sprock said, try earthing the thermo switch wire (located at bottom left of the radiator as you sit on the bike) ... the fan should come on. If that's working ok and you suspect that it's overheating because the fan isn't switching on early enough, you should replace the thermo switch in the radiator.

 

Check your coolant level too, as simple as that sounds. When I first bought mine a couple of years ago the fan would cycle on and off quickly if I remember correctly. Turns out it was just low on coolant.

 

+1

 

Turned out to be the sensor.

What's kind of sad is that I had a spare lol - now fixed - but I am going to pop a manual switch in there too.