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My uncle ran a cooling fan on his 370. It was a mess of wiring but it worked. I think it was a 12v fan so he had to use a rectifier and a small battery.
 

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Discussion Starter #3
My uncle ran a cooling fan on his 370. It was a mess of wiring but it worked. I think it was a 12v fan so he had to use a rectifier and a small battery.
i was thinking about using a small fan running it though the headlight switch
 

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450rs have or had (Im not sure if they stopped using them or not) they did not have a battery, I would think you could pick one up on ebay.
 

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450rs have or had (Im not sure if they stopped using them or not) they did not have a battery, I would think you could pick one up on ebay.
Good idea. Look into a fan off of a 04-05 450r. You need one that is set up to run on AC current, not 12v DC.
 

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actually ive already figured it out, i was just checking to see if anybody had tried one. im a mechanic at a honda dealership and a little looking around our junkpile and a trip to lowes , and ive got all of my parts. thanks for the suggestions guys
 

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actually ive already figured it out, i was just checking to see if anybody had tried one. im a mechanic at a honda dealership and a little looking around our junkpile and a trip to lowes , and ive got all of my parts. thanks for the suggestions guys
Cool. Let us know how it turns out.
 

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man this would be sweet i want a setup so bad.its on my summer fix up to do list. after you figure it out put a how to so everybody else can do it. personally this would offer some peace of mind to some duners no matter how accurate the jetting is knowing that there is a fan cooling it also helps.
 

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man this would be sweet i want a setup so bad.its on my summer fix up to do list. after you figure it out put a how to so everybody else can do it. personally this would offer some peace of mind to some duners no matter how accurate the jetting is knowing that there is a fan cooling it also helps.

got it on it works ok, at idle its alittle slow, but since its running of of the headlight circuit it picks up speed as rpms increase. tommorrow is the real test to see if it holds up to woods riding. not gonna be able to tell yall numbers right now, temp strips didnt come in time. but as soon as i get some numbers i will post them. also will post pics then too
 

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sweet! that sounds cool man. i wonder if with a higher output stator it would work better? also a switch would be a good idea because when the motor is first starting up it doesnt need more air or is it fine like that?
 

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Discussion Starter #14
also you dont need an ac fan as long as you still have the regulator for your stock headlight still connected
 

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also you dont need an ac fan as long as you still have the regulator for your stock headlight still connected

I know this is an old thread anyone got any new try's with the 450r fan on a 250r??? Be patient never posted before, i'm new in the middle of my first 250r frame off rebuild.
 

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someone please chime in on this. i am also looking into adding a fan. i assume just wiring it to the hedlight plug is all that needs to be done?
 

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I was woundering if you could get anuff power of a cr igniton to run a fan. How much power do you need for a fan?
 

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someone please chime in on this. i am also looking into adding a fan. i assume just wiring it to the hedlight plug is all that needs to be done?

Bought am 05 450r cooling fan and there is no way that this thing will fit??? Some on here said to use this fan. I am willing to modify but hhits radiator and stem on front side and hits exhaust on the other even with bolts out of radiator mounts? Puzzeled can anyone help, also anyone know what is needed to add a battery to a 250r???
 
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