i just got my bike a few days ago from a shop in sacramento. i had some flat side carbs put on and i told the guy to replace the fan switch because i had problems with the fan not allways kicking on a while back. bike hasnt been ridden in about a year. i went for a ride today it was about 100 degrees here in central cali today. bike ran about 180 to 195 in town throught traffic, but i never heard the fan kick on. i got home and let it idle to see if the fan could kick on and the bike got to 228 degrees and no fan... the guy swore he replaced the fan switch. and i was thinking of having someone change it to a manually operated switch, or put a new switch myself to make sure it actually got changed? any suggestions????

 

Since I'm not a bike mechanic, were it my bike I would take it to a Honda shop and let them give the bike a look-see.

It is probably something very simple and easy to fix.

 

I ran into the problem of my fan not kicking on once turned out to be my stupidity for not plugging it back in ......

good luck

 

thanks for the replies. that was the first thing i checked was that it was pluged in. and i think i should take it to a honda shop for a look. thanks....

 

Check the fuse.....

 

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you must have enough coolant in the radiator or the fan want come on or your sensor on theradiator which activates the thermostatcould be bad.

 

Meh . . .180 to 195 doesn't really sound hot enough to worry about the fan. Most vehicles use a 190 or 195 degree thermostat, so it won't even open and allow fluid to circulate between the engine and the radiator until it hits that temp. Most performance engines have a thermostat that is even higher, or 205 to 215. It has been my personal experience that 240 or 250 seems to be the breaking point where seals start to fail and aluminum components start to warp. Since you are idling up and it isn't kicking on, prob the sensor in the radiator.

Check the service manual at what the spec resistance is for the sensor, put your multi-meter on it and check it, will save you a lot of guess work. Or just refrain from idleing the bike up so it overheats. My fan doesn't kick on either, but i have never had an overheating problem, even on really hot days and in traffic. Sounds like you aren't either if it stays at 180-195 on a 100 degree day. Think the fan is really only needed under race conditions where there is rapid WOT accelleration to top speed, full braking, and then re-accelleration to the top end over and over again.

 

Oh, and on Rookie years last comment. On my 900 the sensor is only halfway up the radiator. Brother, if there isn't enough coolant in your bike to fill it up to the sensor, then the fan not kicking on probably isn't your biggest problem . . . . ha ha ha.

And just a heads up, there generally isn't a sensor for the thermostat, or at least I've never seen one. They are generally mechanical device that uses a coil of wire that pushes a flat valve open when it expands.

 

I still say check the fuse....