CBR600fm got a bit hot today

[jamiey]

If you're sure you got a good connection on the radiator (not a painted bit) and the fan still failed to operate, you need to check for continuity between the radiator and the frame. Do you have a multimeter?

No haven't got a multimeter, might go and buy myself one tomorrow. I tried to earth the switch on the bottom of the radiator, it looked like a nice unpainted metal area. I wasn't keen on taking out the thermswitch again as i've replaced the coolant 3 times already over the past few days trying to sort this out.

Its not really that important i suppose as i never sit in traffic or leave her running, but it seems this problem has become a personal mission for me to sort out, anyone else had that feeling on such a niggly problem - its driving me nuts!!

[Max Preload]

A multimeter is a handy thing to have, and they're cheap as chips for models with basic functions.

You could just fit a manual switch but if that's your only switch you need to remember to keep a close on the gauge. I have both the thermo switch and a manual one in parallel with a red warning bezel which lights anytime the fan is operating - either automatically of manually.

My thermo switch crapped out in city traffic about a year back and although I replaced it, I figured since I'm here...

[jamiey]

A multimeter is a handy thing to have, and they're cheap as chips for models with basic functions.

You could just fit a manual switch but if that's your only switch you need to remember to keep a close on the gauge. I have both the thermo switch and a manual one in parallel with a red warning bezel which lights anytime the fan is operating - either automatically of manually.

My thermo switch crapped out in city traffic about a year back and although I replaced it, I figured since I'm here...

Thanks mate, i had thought about that (a switch) i read some instructions somewhere on a website for the exact same thing on a CBR, I take it i just run the single wire to a ground point on the frame with a nice neatly posistioned switch somewhere along the way??

[Max Preload]

Yeah, but your switch needs to be waterproof and handle the current the fan draws if you do it like that, in which case you'll most likely need a relay unless you want a big ugly switch.

Here's what mine looks like:

[jamiey]

Problem solved guys, thanks. A quick trip to jaycar - a switch and other bits cost me less than $10. Grounded the wire to the frame with a nice neat waterproof switch on the fairing, works great. At last, wish i'd just done that in the first place. Just gotta remember to turn it on and off now when in traffic etc

[Max Preload]

Out of interest, does the manual switch operate the fan with the ignition off, because my thermo fan switch will still run the fan regardless of the ignition being on or off - it's always powered.

[jamiey]

Out of interest, does the manual switch operate the fan with the ignition off, because my thermo fan switch will still run the fan regardless of the ignition being on or off - it's always powered.

No only works with ignition on