Thanks for that -it is rather odd. I've had the bike since new and it's always been a cool runner.


I think your right that there must be some kind of break in the circuit. Damn hard to find though. I might try running a new wire and see if that fixes it.

Hi all,


My 99 fzs600 has developed a weird electrical gremlin that we can't seem to fix.  Sorry if this has been posted before. I tried a search but could find this described anywhere.


The fan turns on as usual when it gets hot, but it doesn't turn off. The thermo fan switch is near new - was replaced 2 years ago and it's been working fine turning on and off until around 2 months ago.


The bike doesn't seem to be overheating.


It's like there is a busted relay but I can't seem to find the relay that runs the fan. The wiring diagram doesn't seem to even show a relay on the fan but that doesn't make sense.


Has anyone had this before? I've tried 2 mechanics and an auto elec - but they can't seem to find the issue.


Does anyone know what relay runs the fan or had this issue before?


Thanks in advance!