VFR lower radiator fan. (NC30)

[Chrislost]

There is a plug on the side of the lower radiator.
it looks like a thermostat? does anyone know what its for as the wire leading from it goes into the fan.
There seems to be another sender on the right side of the front cylinders that when unpluged the temp gauge does not move when the key is turned.

Can the bottom thermostat wire be removed along with the fan. The fan does not work and i was going to just remove it as i have no trouble with overheating.

[vifferman]

The first plug is the thermostat that triggers the fan - it's a just a simple bimetallic strip thingie that shorts to earth when it reaches a set temperature. Yes, you can remove it if you want to. If the fan doesn't work at all at all, is it because it's broken, or because the thermo switch is ted? If the latter, you could replace it with a manual handlebar-mounted switch if you wanted to.

[moT]

There is a plug on the side of the lower radiator.
it looks like a thermostat? does anyone know what its for as the wire leading from it goes into the fan.
There seems to be another sender on the right side of the front cylinders that when unpluged the temp gauge does not move when the key is turned.

Can the bottom thermostat wire be removed along with the fan. The fan does not work and i was going to just remove it as i have no trouble with overheating.

you can remove it i removed mine. you dont need that fan when your racing although you might want to watch your heat sitting on the dummy grid

[westie]

You'd save weight if you just took the whole assembly out rad and all

[Chrislost]

nah guna leave the rad there.

whats the orange wire with a blue stripe that runs form the back to the front for? dosnt seem to be in my haynes manual and i seem to ave lost half of it.

[vagrant]

I had a look thru a couple of honda wiring diagrams. (CBR900, VFR750R, RC51, CBR600F) (Honda seem to use the blue/orange combo as standard for the wire that runs from the ignition switch to the fuse box for the fan power feed. Should be a blue/black wire running from the fuse box to the fan motor, a black wire from there to the thermoswitch, and a green wire from there to earth.

If your missing part of that wire, maybe that is why your fan doesn't work?
Check your horn and tail lights, because they are often tapped off the same circuit, downstream from the fuse.

[vagrant]

I found a VFR400 wiring diagram, it does use the same coloring and layout as I said in the previous post. It does use the orange/blue wire to supply power from the ignition switch to the fan, horn and tail lights thru the same 10amp fuse.

The electrical section pdf is too big to post here. PM me your email address if you want it. Or I can fry the whole manual to a CD.