Whats up with the fan??

[Jersey450R]

ok, i've had my 450 for almost a month and the fan has NEVER turned on! i've seen posts about this before and still no fan...whats up with that? how hot do these things really have to get? I rode for almost 3 hours straight and this quad was hot lemme tell you, and still no fan. could i have a bad fan motor? help is much appreciated, thank you.
It would be cool just to see that thing running...

[MY450R]

i hear ya i am wondering the same thing
i dont think its broken but just imagine if it is we're f ed

to see if it works let her idle for like 5 minutes..she will turn on :devil:

[quadrcr161]

let it idle, it will kick on. also the way it sits its hard to tell that its spinning and it is pretty quite.

[red2004 TRX450R]

Ive had mine for 6 months and it only kicked on once and i was ridding hard then idling for like 5 min.

and yes it is real quit so you will not hear it.

[BSTURDIVANT]

To test the fan, just run a jumper wire to the thermo-switch at the thermostat housing and to ground with the engine running. Fan should come on, if not, check wireing, switch etc.

[Xowner]

it just comes on real quick?:confused: mine ran for like 2-3 mins one time and when it came on the frist time it was like somthing hot was blowing on me leg i could feel it working! and mine almost allways runs for a couple mins

[Punk'd]

You guys must be going like 2mph or sumthin lol jp iv seen my fan on pleanty of times

[Martin Blair]

It kicks on after about 4-5 minutes of ideling and in the 80s outside. It is quite you cant here it over engine noise , but you can feel hot air on your legs.

[jeepnrocks]

i wondered why mine never kicked on like some others when you turn it off
DORK---------->:huh

[SCOOTER99]

Mine only kicks on at idle and has only been on mabey two times that I have noticed. Ive have likje 50 hours on it

[turboTony]

If I come to a stop and let it idle for a sec before shutting it down, I can hear the fan spin down after the motor dies.

[450 Racer R]

do donuts in first gear for a few minutes. mine spins like crazy when I do that

Originally posted by Punk'd
You guys must be going like 2mph or sumthin lol jp iv seen my fan on pleanty of times that would make the fan come on

[asdf450r]

mine comes on at least once every time i ride.. of course the ambient temp is over 100 right now, so its no wonder things heat up a bit down there heh. go spin some donuts and it will come on.

[R3Concepts]

Fans are a huge misconception with todays 4 strokes. They are not going to come on when riding at speed. They will come on when idiling or crusing around in second gear. The faster you're going the more air the radiator is getting so you dont need the fan. Dont worry about it not coming on all the time. I know many 450R owners that took off the fan completly. If it idled for 20 mins and then didnt kick on, then be worried.

[GettinFaster450]

I put a heatseeker gauge on mine because the fan never kicked on. I ordered one for a 400EX since they hadn't made one for the 450 yet. Only had 2 do 1 modification had to replace the stock hose with a step down sized hose because the gauge is smaller than the hose. Fan only kicked on when it got to 220 degrees. Gets pretty hot.